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Fenchel's conjecture on NEC groups
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2025
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E. Bujalance
F. Cirre
Marston Conder
Antonio F. Costa
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On the Topological Type of Anticonformal Square Roots of Automorphisms of Even Order of Riemann Surfaces
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2024
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Antonio F. Costa
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PDF
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On the topological type of anticonformal square roots of automorphisms
of even order of Riemann surfaces
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2024
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Antonio F. Costa
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PDF
Chat
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One dimensional equisymmetric strata in moduli space with genus 1 quotient surfaces
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2023
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Sean A Broughton
Antonio F. Costa
Milagros Izquierdo
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Periodicity and free periodicity of alternating knots
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2023
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Antonio F. Costa
Cam Van Quach Hongler
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One dimensional equisymmetric strata in moduli space
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2022
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Sean A Broughton
Antonio F. Costa
Milagros Izquierdo
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Periodicity and Free Periodicity of Alternating Knots
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2022
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Antonio F. Costa
Cam Van Quach Hongler
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Periodic projections of alternating knots
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2021
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Antonio F. Costa
Cam Van Quach-Hongler
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Corrigendum to the classification of the orientation reversing homeomorphisms of finite order of surfaces
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2020
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Antonio F. Costa
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Note on the classification of the orientation reversing homeomorphisms of finite order of surfaces
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2020
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Antonio F. Costa
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Note on topologically singular points in the moduli space of Riemann surfaces of genus 2
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2019
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Antonio F. Costa
Ana M. Porto
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Periodic projections of alternating knots
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2019
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Antonio F. Costa
Cam Van Quach Hongler
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On the algebraic classification of subgroups of hyperbolic planar crystallographic groups
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2019
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Ismael Cortázar
Antonio F. Costa
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Periodic projections of alternating knots
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2019
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Antonio F. Costa
Cam Van Quach Hongler
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Topological classification of generic real meromorphic functions from compact surfaces
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2018
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Antonio F. Costa
S. M. Natanzon
Boris Shapiro
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+
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Constructing Random Klein Surfaces Without Boundary
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2018
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Antonio F. Costa
Eran Makover
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PDF
Chat
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On the connectedness of the set of Riemann surfaces with real moduli
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2017
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Antonio F. Costa
Rubén A. Hidalgo
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Murasugi decomposition and periodic alternating links
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2017
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Antonio F. Costa
Cam Van Quach Hongler
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PDF
Chat
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Topologically singular points in the moduli space of Riemann surfaces
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2017
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Antonio F. Costa
Ana M. Porto
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On the connectedness of the set of Riemann surfaces with real moduli
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2017
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Antonio F. Costa
Rubén A. Hidalgo
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Limits of equisymmetric $1$-complex dimensional families of Riemann surfaces
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2017
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Antonio F. Costa
Víctor González-Aguilera
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PDF
Chat
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One-dimensional families of Riemann surfaces of genus g with $$4\text {g}+4$$ 4 g + 4 automorphims
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2017
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Antonio F. Costa
Milagros Izquierdo
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Topologically singular points in the moduli space of Riemann surfaces
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2017
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Antonio F. Costa
Ana M. Porto
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PDF
Chat
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On the connectedness of the branch locus of moduli space of hyperelliptic Klein surfaces with one boundary
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2017
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Antonio F. Costa
Milagros Izquierdo
Ana M. Porto
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PDF
Chat
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The double of the doubles of Klein surfaces
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2017
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Antonio F. Costa
Paola Cristofori
Ana M. Porto
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On the connectedness of the set of Riemann surfaces with real moduli
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2017
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Antonio F. Costa
Rubén A. Hidalgo
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Topologically singular points in the moduli space of Riemann surfaces
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2017
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Antonio F. Costa
Ana M. Porto
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On Riemann surfaces of genus g with 4g automorphisms
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2016
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E. Bujalance
Antonio F. Costa
Milagros Izquierdo
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Topological classification of generic real meromorphic functions
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2016
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Antonio F. Costa
S. M. Natanzon
Boris Shapiro
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PDF
Chat
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On Riemann Surfaces of genus g with 4g automorphisms
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2016
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E. Bujalance
Antonio F. Costa
Milagros Izquierdo
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Automorphisms of Non-Cyclic p-Gonal Riemann Surfaces
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2016
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Antonio F. Costa
Rubén A. Hidalgo
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Topological classification of generic real meromorphic functions
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2016
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Antonio F. Costa
S. M. Natanzon
Boris Shapiro
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PDF
Chat
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Automorphism groups of cyclic p-gonal pseudo-real Riemann surfaces
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2015
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E. Bujalance
Antonio F. Costa
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Automorphism Groups of Cyclic p-gonal Pseudo-real Riemann Surfaces
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2015
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E. Bujalance
Antonio F. Costa
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Automorphism Groups of Cyclic p-gonal Pseudo-real Riemann Surfaces
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2015
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E. Bujalance
Antonio F. Costa
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Riemann and Klein Surfaces, Automorphisms, Symmetries and Moduli Spaces
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2014
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Milagros Izquierdo
Sean A Broughton
Antonio F. Costa
Rubí E. Rodríguez
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Connecting $$p$$ p -gonal loci in the compactification of moduli space
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2014
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Antonio F. Costa
Milagros Izquierdo
Hugo Parlier
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Finding Riemann surfaces with several p-gonal morphisms
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2014
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Ismael Cortázar
Antonio F. Costa
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PDF
Chat
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On the connectedness of the branch loci of moduli spaces of orientable Klein surfaces
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2014
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Antonio F. Costa
Milagros Izquierdo
Ana M. Porto
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Maximal and non-maximal NEC and Fuchsian groups uniformizing Klein and Riemann surfaces
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2014
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Antonio F. Costa
Milagros Izquierdo
Ana M. Porto
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Maximal and Non-maximal NEC and Fuchsian groups uniformizing Klein and Riemann surfaces
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2014
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Antonio F. Costa
Milagros Izquierdo
Ana M. Porto
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Automorphism groups of pseudo-real Riemann surfaces of low genus
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2013
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E. Bujalance
Antonio F. Costa
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PDF
Chat
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On the orbifold structure of the moduli space of Riemann surfaces of genera four and five
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2013
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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On automorphisms groups of cyclic p -gonal Riemann surfaces
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2013
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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Connecting $p$-gonal loci in the compactification of moduli space
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2013
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Antonio F. Costa
Milagros Izquierdo
Hugo Parlier
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On the connectivity of branch loci of moduli spaces
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2013
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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Real Dihedral p-Gonal Riemann Surfaces
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2013
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Ismael Cortázar
Antonio F. Costa
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Connecting $p$-gonal loci in the compactification of moduli space
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2013
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Antonio F. Costa
Milagros Izquierdo
Hugo Parlier
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PDF
Chat
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On the existence of connected components of dimension one in the branch locus of moduli spaces of riemann surfaces
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2012
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Antonio F. Costa
Milagros Izquierdo
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On isolated strata of p-gonal Riemann surfaces in the branch locus of moduli spaces
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2012
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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PDF
Chat
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ON ISOLATED STRATA OF P-GONAL RIEMANN SURFACES IN THE BRANCH LOCUS OF MODULI SPACES
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2012
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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PDF
Chat
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DOUBLES OF KLEIN SURFACES
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2012
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Antonio F. Costa
Wendy Hall
David Singerman
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PDF
Chat
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On isolated strata of pentagonal Riemann surfaces in the branch locus of moduli spaces
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2012
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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On isolated strata of p-gonal Riemann surfaces in the branch locus of moduli spaces
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2012
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
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PDF
Chat
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PRIME ORDER AUTOMORPHISMS OF KLEIN SURFACES REPRESENTABLE BY ROTATIONS ON THE EUCLIDEAN SPACE
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2011
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Antonio F. Costa
Cam Van Quach Hongler
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Corrigendum to “Maximal order of automorphisms of trigonal Riemann surfaces” [J. Algebra 323 (1) (2010) 27–31]
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2011
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Antonio F. Costa
Milagros Izquierdo
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Klein foams
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2011
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Antonio F. Costa
S. M. Gusein‐Zade
S. M. Natanzon
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Prime order automorphisms of Klein surfaces representable by rotations of the euclidean space
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2010
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Antonio F. Costa
Cam Van Quach Hongler
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PDF
Chat
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ON THE CONNECTEDNESS OF THE BRANCH LOCUS OF THE MODULI SPACE OF RIEMANN SURFACES OF GENUS 4
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2010
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Antonio F. Costa
Milagros Izquierdo
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PDF
Chat
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On the connectedness of the branch locus of the moduli space of Riemann surfaces
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2010
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
Ana M. Porto
|
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PDF
Chat
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On the connectedness of the branch locus of the moduli space of Riemann surfaces
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2010
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Gabriel Bartolini
Antonio F. Costa
Milagros Izquierdo
Ana M. Porto
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PDF
Chat
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Pseudo-real Riemann surfaces and chiral regular maps
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2010
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E. Bujalance
Marston Conder
Antonio F. Costa
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Equisymmetric strata of the singular locus of the moduli space of Riemann surfaces of genus 4
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2010
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Antonio F. Costa
Milagros Izquierdo
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+
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Klein Foams
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2010
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Antonio F. Costa
S. M. Gusein‐Zade
S. M. Natanzon
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+
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Prime order automorphisms of Klein surfaces representable by rotations of the euclidean space
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2010
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Antonio F. Costa
Cam Van Quach Hongler
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PDF
Chat
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On cyclic p-gonal Riemann surfaces with several p-gonal morphisms
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2009
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Antonio F. Costa
Milagros Izquierdo
Daniel Ying
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Maximal order of automorphisms of trigonal Riemann surfaces
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2009
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Antonio F. Costa
Milagros Izquierdo
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ON THE CONNECTEDNESS OF THE LOCUS OF REAL ELLIPTIC-HYPERELLIPTIC RIEMANN SURFACES
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2009
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J. A. Bujalance
Antonio F. Costa
Ana M. Porto
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PDF
Chat
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Escher-like quasiperiodic heterostructures
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2009
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Alberto López Barriuso
J. J. Monzón
L. L. Sánchez-Soto
Antonio F. Costa
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PDF
Chat
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Poincaré's theorem for the modular group of real Riemann surfaces
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2009
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Antonio F. Costa
S. M. Natanzon
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Applications of a theorem of Singerman about Fuchsian groups
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2008
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Antonio F. Costa
Hugo Parlier
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On Projecting Symmetries by Unbranched Regular Coverings of Riemann Surfaces
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2008
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E. Bujalance
Antonio F. Costa
Grzegorz Gromadzki
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On Harnack’s theorem and extensions: A geometric proof and applications
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2008
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Antonio F. Costa
Hugo Parlier
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PDF
Chat
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One-Dimensional Hurwitz Spaces, Modular Curves, and Real Forms of Belyi Meromorphic Functions
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2008
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Antonio F. Costa
Milagros Izquierdo
Gonzalo Riera
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Escherlike quasiperiodic heterostructures
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2008
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Alberto López Barriuso
J. J. Monzón
L. L. Sánchez-Soto
Antonio F. Costa
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Topological classification of Z m actions on surfaces
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2008
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Antonio F. Costa
Sergei Natanzon
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PDF
Chat
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A geometric characterization of orientation-reversing involutions
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2007
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Antonio F. Costa
Hugo Parlier
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Classification of Zpkm Orientation Preserving Actions on Surfaces
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2007
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Antonio F. Costa
S. M. Natanzon
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PDF
Chat
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On real trigonal Riemann surfaces
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2006
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Antonio F. Costa
Milagros Izquierdo
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+
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Poincaré's theorem for the modular group of real Riemann surfaces
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2006
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Antonio F. Costa
S. M. Natanzon
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On Riemann surfaces with non-unique cyclic trigonal morphism
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2005
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Antonio F. Costa
Milagros Izquierdo
Daniel Ying
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Orientation-reversing free actions on handlebodies
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2005
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Antonio F. Costa
Darryl McCullough
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On trigonal Riemann surfaces with non-unique morphims
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2005
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Milagros Izquierdo
Daniel Ying
Antonio F. Costa
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Counting the regular coverings of surfaces using the center of a group algebra
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2004
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Antonio F. Costa
S. M. Natanzon
Ana M. Porto
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On the topological types of symmetries of elliptic-hyperelliptic Riemann surfaces
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2004
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J. A. Bujalance
Antonio F. Costa
Ana M. Porto
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+
PDF
Chat
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On two recent geometrical characterizations of hyperellipticity
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2004
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Antonio F. Costa
Ana M. Porto
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PDF
Chat
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Symmetries of real cyclic p-gonal Riemann surfaces
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2004
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Antonio F. Costa
Milagros Izquierdo
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Orientation-reversing free actions on handlebodies
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2004
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Antonio F. Costa
Darryl McCullough
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Lifting involutions to ramified covers of Riemann surfaces
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2003
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Antonio F. Costa
Peter Turbek
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PDF
Chat
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Topological classification of Zmp actions on surfaces
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2002
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Antonio F. Costa
Sergei Natanzon
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+
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ON THE CONNECTEDNESS OF THE LOCUS OF REAL RIEMANN SURFACES
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2002
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Antonio F. Costa
Milagros Izquierdo
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PDF
Chat
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Sur des invariants galoisiens des revêtements ramifiés
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2002
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Antonio F. Costa
Ana M. Porto
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+
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Topics on Riemann Surfaces and Fuchsian Groups
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2001
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E. Bujalance
Antonio F. Costa
Ernesto Martínez
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PDF
Chat
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THE HYPERELLIPTIC MAPPING CLASS GROUP OF KLEIN SURFACES
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2001
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E. Bujalance
Antonio F. Costa
J. M. Gamboa
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+
PDF
Chat
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One parameter families of Riemann surfaces of genus two
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2001
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Antonio F. Costa
Gonzalo Riera
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+
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Anticonformal automorphisms and Schottky coverings.
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2001
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Rubén A. Hidalgo
Antonio F. Costa
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Period Matrices Of Accola-Maclachlan And Kulkarni Surfaces
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2000
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J. M. Gamboa
E. Bujalance
Antonio F. Costa
Gonzalo Riera
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+
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Topological classification of Z_{p}^{m} actions on surfaces
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2000
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Antonio F. Costa
Sergei Natanzon
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+
PDF
Chat
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Symmetries of Accola-Maclachlan and Kulkarni surfaces
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1999
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Sean A Broughton
E. Bujalance
Antonio F. Costa
J. M. Gamboa
Grzegorz Gromadzki
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+
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On anticonformal automorphisms of order &𝑔𝑡;2 of Riemann surfaces
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1999
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Antonio F. Costa
Ana M. Porto
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A NOTE ON ISOLATED POINTS IN THE BRANCH LOCUS OF THE MODULI SPACE OF COMPACT RIEMANN SURFACES
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1998
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E. Bujalance
Antonio F. Costa
Milagros Izquierdo
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+
PDF
Chat
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Embeddable anticonformal automorphisms of Riemann surfaces
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1997
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Antonio F. Costa
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+
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On symmetries of p-hyperelliptic Riemann surfaces
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1997
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E. Bujalance
Antonio F. Costa
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+
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Embeddable anticonformal autormorphisms of Riemann surfaces
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1997
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Antonio F. Costa
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On the automorphism group of the canonical double covering of bordered Klein surfaces with large automorphism group
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1996
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A. M. Porto Fereira da Silva
Antonio F. Costa
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On the topological type of anticonformal square roots of automorphisms of Riemann surfaces
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1996
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Antonio F. Costa
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+
PDF
Chat
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On anticonformal automorphisms of Riemann surfaces with nonembeddable square
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1996
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Antonio F. Costa
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+
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Symmetries of Riemann surfaces on which PSL(2, q) acts as a Hurwitz automorphism group
|
1996
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S. Allen Broughton
E. Bujalance
Antonio F. Costa
J. M. Gamboa
Grzegorz Gromadzki
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+
PDF
Chat
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An algorithm to compute orders and ramification indices of cyclic actions on compact surfaces, II
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1996
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E. Bujalance
Antonio F. Costa
J. M. Gamboa
Javier Lafuente
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+
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On hyperbolic right-angled polygons
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1995
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Antonio F. Costa
E. Mart�nez
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+
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Classification of the orientation reversing homeomorphisms of finite order of surfaces
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1995
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Antonio F. Costa
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+
PDF
Chat
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Orientation reversing automorphisms of Riemann surfaces
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1994
|
E. Bujalance
Antonio F. Costa
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+
PDF
Chat
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An algorithm to compute odd orders and ramification indices of cyclic actions on compact surfaces
|
1994
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E. Bujalance
Antonio F. Costa
J. M. Gamboa
Javier Lafuente
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+
PDF
Chat
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Automorphism groups of complex doubles of Klein surfaces
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1994
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E. Bujalance
Antonio F. Costa
Grzegorz Gromadzki
David Singerman
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+
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Application of Hoare's theorem to symmetries of Riemann surfaces.
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1993
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E. Bujalance
Antonio F. Costa
David Singerman
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+
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Problemas de matemática discreta
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1993
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J. A. Bujalance
Emilio Bujalance García
E. Martínez García
Antonio F. Costa
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+
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Involutions of compact Klein surfaces
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1992
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E. Bujalance
Antonio F. Costa
S. M. Natanzon
David Singerman
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+
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Universal coverings of PL-manifolds via coloured graphs
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1992
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Antonio F. Costa
Luigi Grasselli
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+
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A combinatorial approach to the symmetries of M and M–l Riemann surfaces
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1992
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E. Bujalance
Antonio F. Costa
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+
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Planar hyperelliptic Klein surfaces and fundamental regions of NEC groups
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1992
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Antonio F. Costa
Ernesto Martínez
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+
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Locally regular coloured graphs
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1992
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Antonio F. Costa
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+
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On folded coverings of quasi-manifolds with boundary
|
1991
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Antonio F. Costa
Alba Valverde
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+
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On the regularity conditions for coloured graphs
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1991
|
Antonio F. Costa
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+
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Real parts of complex algebraic curves
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1990
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E. Bujalance
Antonio F. Costa
J. M. Gamboa
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+
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Coloured graphs representing manifolds and universal maps
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1988
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Antonio F. Costa
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+
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On codimension one submersions of euclidean spaces
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1988
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Antonio F. Costa
F. Gascón
Artemio González-López
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On the homology of metacyclic coverings
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1986
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Antonio F. Costa
Jes�s M. Ruiz
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