Corneliu Hoffman

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All published works

Action	Title	Year	Authors
+ PDF Chat	Classification of Curtis–Tits and Phan amalgams with 3-spherical diagram	2018	Rieuwert J. Blok Corneliu Hoffman Sergey Shpectorov
+	Classification of Curtis-Tits and Phan amalgams with $3$-spherical diagram	2016	Rieuwert J. Blok Corneliu Hoffman Sergey Shpectorov
+	Curtis–Tits groups of simply-laced type	2016	Rieuwert J. Blok Corneliu Hoffman
+	Realizations and properties of $3$-spherical Curtis-Tits Groups and Phan groups	2016	Rieuwert J. Blok Corneliu Hoffman
+	Classification of Curtis-Tits and Phan amalgams with $3$-spherical diagram	2016	Rieuwert J. Blok Corneliu Hoffman Sergey Shpectorov
+	CURTIS-TITS GROUPS OF SIMPLY-LACED TYPE	2015	Rieuwert J. Blok Corneliu Hoffman
+	Curtis-Tits Groups of simply-laced type	2015	Rieuwert J. Blok Corneliu Hoffman
+ PDF Chat	A Classification of Curtis-Tits Amalgams	2014	Rieuwert J. Blok Corneliu Hoffman
+	Curtis–Tits groups generalizing Kac–Moody groups of type<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msub><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>A</mml:mi></mml:mrow><mml:mrow><mml:mo>˜</mml:mo></mml:mrow></mml:mover></mml:mrow><mml:mrow><mml:mi>n</mml:mi><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msub></mml:math>	2013	Rieuwert J. Blok Corneliu Hoffman
+	On a Quasi-Phan Theorem for Orthogonal Groups	2013	Corneliu Hoffman Adam Michael Roberts
+ PDF Chat	1-Cohomology of simplicial amalgams of groups	2012	Rieuwert J. Blok Corneliu Hoffman
+	Expander graphs from Curtis–Tits groups	2011	Rieuwert J. Blok Corneliu Hoffman Alina Vdovina
+ PDF Chat	Bass–Serre theory and counting rank two amalgams	2010	Rieuwert J. Blok Corneliu Hoffman
+	On Generalizations of Kac-Moody Groups	2010	Rieuwert J. Blok Corneliu Hoffman
+ PDF Chat	Some additive combinatorics problems in matrix rings	2010	Ron Ferguson Corneliu Hoffman Florian Luca Alina Ostafe Igor E. Shparlinski
+	Curtis-Tits groups generalizing Kac-Moody groups of type $\widetilde{A}_n$	2009	Rieuwert J. Blok Corneliu Hoffman
+	Curtis Tits amalgams and presentations of locally split Kac-Moody groups	2009	Rieuwert J. Blok Corneliu Hoffman
+	Some Additive Combinatorics Problems in Matrix Rings	2009	Ron Ferguson Corneliu Hoffman Florian Luca Alina Ostafe Igor E. Shparlinski
+	Bass-Serre theory and counting rank two amalgams	2009	Rieuwert J. Blok Corneliu Hoffman
+	On a conjecture of Parker about Dessins d'Enfants	2009	Corneliu Hoffman
+	On a Quasi-Phan Theorem for Orthogonal Groups	2009	Corneliu Hoffman Adam Michael Roberts
+	A classification of Curtis-Tits amalgams	2009	Rieuwert J. Blok Corneliu Hoffman
+	Some Additive Combinatorics Problems in Matrix Rings	2009	Ron L. Ferguson Corneliu Hoffman Florian Luca Alina Ostafe Igor E. Shparlinski
+	Curtis-Tits groups generalizing Kac-Moody groups of type $\widetilde{A}_n$	2009	Rieuwert J. Blok Corneliu Hoffman
+	A Curtis–Tits–Phan theorem for the twin-building of type <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msub><mml:mover accent="true"><mml:mi>A</mml:mi><mml:mo>˜</mml:mo></mml:mover><mml:mrow><mml:mi>n</mml:mi><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msub></mml:math>	2008	Rieuwert J. Blok Corneliu Hoffman
+	A quasi Curtis–Tits–Phan theorem for the symplectic group	2007	Rieuwert J. Blok Corneliu Hoffman
+	Odd-dimensional orthogonal groups as amalgams of unitary groups. Part 1: General simple connectedness	2007	Curtis D. Bennett Ralf Gramlich Corneliu Hoffman Sergey Shpectorov
+	New geometric presentations for $Aut G_2(3)$ and $G_2(3)$	2006	Corneliu Hoffman Sergey Shpectorov
+	A Quasi Curtis-Tits-Phan theorem for the symplectic group	2006	Rieuwert J. Blok Corneliu Hoffman
+	Even-dimensional orthogonal groups as amalgams of unitary groups	2004	Ralf Gramlich Corneliu Hoffman Werner Nickel Sergey Shpectorov
+	A Phan-type theorem for Sp(2n,q)	2003	Ralf Gramlich Corneliu Hoffman Sergey Shpectorov
+	Curtis-Phan-Tits Theory	2003	Curtis D. Bennett Ralf Gramlich Corneliu Hoffman Sergey Shpectorov
+	Projective representations for some exceptional finite groups of Lie type	2001	Corneliu Hoffman
+	Cross Characteristic Projective Representations for Some Classical Groups	2000	Corneliu Hoffman
+	On the Cohomology of the Finite Chevalley Groups	2000	Corneliu Hoffman
+	On some examples of simple quantum groups	2000	Corneliu Hoffman

Common Coauthors

Coauthor	Papers Together
Rieuwert J. Blok	21
Sergey Shpectorov	8
Ralf Gramlich	4
Florian Luca	3
Alina Ostafe	3
Igor E. Shparlinski	3
Adam Michael Roberts	2
Curtis D. Bennett	2
Ron Ferguson	2
Alina Vdovina	1
Werner Nickel	1
Ron L. Ferguson	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+	A new proof of a theorem of Phan	2004	Curtis D. Bennett Sergey Shpectorov	12
+	A Phan-type theorem for Sp(2n,q)	2003	Ralf Gramlich Corneliu Hoffman Sergey Shpectorov	12
+	Twin buildings and groups of Kac-Moody type	2010	Jacques Tits	10
+ PDF Chat	On groups generated by three-dimensional special unitary groups II	1977	Kok-Wee Phan	8
+	Curtis-Phan-Tits Theory	2003	Curtis D. Bennett Ralf Gramlich Corneliu Hoffman Sergey Shpectorov	7
+	On 2-spherical Kac-Moody groups and their central extensions	2007	Pierre‐Emmanuel Caprace	7
+	Curtis–Tits groups generalizing Kac–Moody groups of type<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msub><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>A</mml:mi></mml:mrow><mml:mrow><mml:mo>˜</mml:mo></mml:mrow></mml:mover></mml:mrow><mml:mrow><mml:mi>n</mml:mi><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msub></mml:math>	2013	Rieuwert J. Blok Corneliu Hoffman	7
+	Weak Phan systems of type <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msub><mml:mi>C</mml:mi><mml:mi>n</mml:mi></mml:msub></mml:math>	2004	Ralf Gramlich	7
+	None	1998	F. G. Timmesfeld	6
+ PDF Chat	Buildings of Spherical Type and Finite BN-Pairs	1974	Jacques Tits	6
+	On the simple connectedness of certain subsets of buildings	2007	Alice Devillers Bernhard Mühlherr	6
+	Steinberg-type presentation for Lie-type groups	2006	F. G. Timmesfeld	6
+	On the Steinberg-presentation for Lie-type groups	2003	F. G. Timmesfeld	6
+	Présentations de certaines BN-paires jumelées comme sommes amalgamées	1997	Peter Abramenko Bernhard Mühlherr	5
+ PDF Chat	On groups generated by three-dimensional special unitary groups I	1977	Kok-Wee Phan	5
+	The complete Phan-type theorem for Sp(2n,q)	2006	Ralf Gramlich Max Horn Werner Nickel	5
+	Automorphisms of Trivalent Graphs	1980	David M. Goldschmidt	5
+	Locally split and locally finite twin buildings of 2-spherical type	1999	Bernhard Mühlherr	5
+	The Curtis–Tits-presentation	2004	F. G. Timmesfeld	5
+	Even-dimensional orthogonal groups as amalgams of unitary groups	2004	Ralf Gramlich Corneliu Hoffman Werner Nickel Sergey Shpectorov	4
+	SIMPLE GROUPS OF LIE TYPE	1975	I. G. Macdonald	4
+	Abstract involutions of algebraic groups and of Kac–Moody groups	2010	Ralf Gramlich Max Horn Bernhard Mühlherr	4
+	Buildings of Spherical Type and Finite BN-Pairs	1974		4
+	Covering theory for graphs of groups	1993	Hyman Bass	4
+	On the Minimal Degrees of Projective Representations of the Finite Chevalley Groups, II	1993	Gary M. Seitz Alexandre Zalesski	3
+ PDF Chat	A Classification of Curtis-Tits Amalgams	2014	Rieuwert J. Blok Corneliu Hoffman	3
+	Some Representations of Classical Groups	1975	Gary M. Seitz	3
+	Curtis Tits amalgams and presentations of locally split Kac-Moody groups	2009	Rieuwert J. Blok Corneliu Hoffman	3
+ PDF Chat	Developments in finite Phan theory	2009	Ralf Köhl	3
+ PDF Chat	Some Results on Algebraic Groups with Involutions	2018	T. A. Springer	3
+ PDF Chat	Bass–Serre theory and counting rank two amalgams	2010	Rieuwert J. Blok Corneliu Hoffman	3
+	Die Automorphismon der projektiven Gruppen	1928	Otto Schreier B. L. Van der WAERDEN	3
+	Uniqueness and presentation of Kac-Moody groups over fields	1987	Jacques Tits	3
+ PDF Chat	1-Cohomology of simplicial amalgams of groups	2012	Rieuwert J. Blok Corneliu Hoffman	3
+	The Subgroup Structure of the Finite Classical Groups	1990	Peter B. Kleidman Martin W. Liebeck	3
+	Expander graphs from Curtis–Tits groups	2011	Rieuwert J. Blok Corneliu Hoffman Alina Vdovina	3
+	The Classification of the Finite Simple Groups	1994	Daniel Gorenstein Richard Lyons Ronald Solomon	3
+	Odd-dimensional orthogonal groups as amalgams of unitary groups.	2007	Ralf Gramlich Max Horn Werner Nickel	2
+	Lectures on Chevalley Groups	2016	Robert Steinberg	2
+	Groups, Combinatorics & Geometry	1992	Martin W. Liebeck Jan Saxl	2
+	Lectures on buildings	1990	Mark Ronan	2
+	Curtis-Tits groups generalizing Kac-Moody groups of type $\widetilde{A}_n$	2009	Rieuwert J. Blok Corneliu Hoffman	2
+	The geometry of the classical groups	1992	D. E. Taylor	2
+	Exponential sums, the geometry of hyperplane sections, and some diophantine problems	1992	Alexei N. Skorobogatov	2
+	Cohen-Macaulay ordered sets	1980	Kenneth Bacławski	2
+	Homotopy properties of the poset of nontrivial p-subgroups of a group	1978	Daniel Quillen	2
+	Bilinear Forms, Clifford Algebras, q-Commutation Relations, and Quantum Groups	2000	Keith Hannabuss	2
+ PDF Chat	Twin Buildings and Applications to S-Arithmetic Groups	1996	Peter Abramenko	2
+	A Curtis–Tits–Phan theorem for the twin-building of type <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msub><mml:mover accent="true"><mml:mi>A</mml:mi><mml:mo>˜</mml:mo></mml:mover><mml:mrow><mml:mi>n</mml:mi><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msub></mml:math>	2008	Rieuwert J. Blok Corneliu Hoffman	2
+	A characterization of the unitary groups PSU(4, q2), q odd	1971	Kok-Wee Phan	2