Harm Bart

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All published works

Action	Title	Year	Authors
+	Special issue in honor of Albrecht Böttcher	2024	Harm Bart Torsten Ehrhardt André C. M. Ran Ilya M. Spitkovsky
+	A note on factorization of vector valued functions involving the extraction of elementary factors	2023	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	The Rouché Theorem for Fredholm functions: An enhanced version	2023	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Rank decomposition under zero pattern constraints and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mi mathvariant="sans-serif">L</mml:mi></mml:math>-free directed graphs	2021	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	How Small Can a Sum of Idempotents Be?	2020	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Unions of rank/trace complete preorders	2019	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Spectral regularity of a C*-algebra generated by two-dimensional singular integral operators	2018	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	L-free directed bipartite graphs and echelon-type canonical forms	2018	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Operator Theory, Analysis and the State Space Approach	2018	Harm Bart S. ter Horst André C. M. Ran Hugo J. Woerdeman
+	Echelon Type Canonical Forms in Upper Triangular Matrix Algebras	2017	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Sums of idempotents and logarithmic residues in zero pattern matrix algebras	2015	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Approximately finite-dimensional Banach algebras are spectrally regular	2014	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	The Chemnitz connection	2013	Harm Bart
+	Zero Sums of Idempotents and Banach Algebras Failing to be Spectrally Regular	2013	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Leonia Lerer and My First Visit to Israel	2013	Harm Bart
+	Logarithmic residues, Rouché’s theorem, and spectral regularity: The <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" display="inline" overflow="scroll"><mml:msup><mml:mrow><mml:mi>C</mml:mi></mml:mrow><mml:mrow><mml:mo>∗</mml:mo></mml:mrow></mml:msup></mml:math>-algebra case	2012	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Families of Homomorphisms in Non-commutative Gelfand Theory: Comparisons and Examples	2012	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Spectral Regularity of Banach Algebras and Non-commutative Gelfand Theory	2012	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	In memoriam Israel Gohberg August 23, 1928–October 12, 2009	2010	Harm Bart Harry Dym Rien Kaashoek Peter Lancaster A. Markus Leiba Rodman
+	Convolution equations and the transport equation	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Canonical factorization and Riccati equations	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Application to the rational Nehari problem	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Factorization of matrix functions analytic in a strip	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Explicit solutions using realizations	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Preliminaries concerning minimal factorization	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	H-infinity control applications	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Review of the theory of matrices in indefinite inner product spaces	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	The role of canonical factorization in solving convolution equations	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Wiener-Hopf factorization and factorization indices	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	The symmetric algebraic Riccati equation	2010	Harm Bart M. A. Kaashoek André C. M. Ran
+	Trace conditions for regular spectral behavior of vector-valued analytic functions	2009	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Israel Gohberg and friends : on the occasion of his 80th birthday	2008	Harm Bart Thomas Hempfling M. A. Kaashoek
+	Vector valued logarithmic residues and the extraction of elementary factors	2007	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Vector valued logarithmic residues and the extraction of elementary factors	2007	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Wiener-Hopf factorization and realization	2005	Harm Bart Israel Gohberg M. A. Kaashoek
+	Logarithmic residues in the Banach algebra generated by the compact operators and the identity	2004	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Logarithmic Residues of Fredholm Operator Valued Functions and Sums of Finite Rank Projections	2002	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Logarithmic residues of analytic Banach algebra valued functions possessing a simply meromorphic inverse	2002	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Sums of Idempotents in the Banach Algebra Generated by the Compact Operators and the Identity	2002	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Logarithmic residues and sums of idempotents in the Banach algebra generated by the compact operators and the identity.	2001	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Logarithmic residues and sums of idempotents in the Banach algebra generated by the compact operators and the identity	2001	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Operator Theory and Analysis: The M.A. Kaashoek Anniversary Volume Workshop in Amsterdam, November 12-14, 1997	2001	M. A. Kaashoek Harm Bart Israel Gohberg André C. M. Ran
+	Logarithmic residues of analytic Banach algebra valued functions possessing a simply meromorphic inverse	2001	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Sums of Idempotents and Logarithmic Residues in Matrix Algebras	2001	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Operator Theory and Analysis	2001	Harm Bart André C. M. Ran Israel Gohberg
+	Simultaneous reduction to triangular forms after extension with zeroes	1998	Harm Bart Rob Zuidwijk
+	Logarithmic residues, generalized idempotents, and sums of idempotents in Banach algebras	1997	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Encyclopaedia of Mathematics	1995	Michiel Hazewinkel J Adamst Sergio Albeverio J Alblas S. A. Amitsur I Bakelman Joep Bakker Claude Bardos Harm Bart Hyman Bass
+	Encyclopaedia of Mathematics	1995	Michiel Hazewinkel J Adamst Sergio Albeverio J Alblas S. A. Amitsur I Bakelman Joep Bakker Claude Bardos Harm Bart Hyman Bass
+ PDF Chat	Zero sums of idempotents in Banach algebras	1994	Harm Bart Torsten Ehrhardt Bernd Silbermann
+ PDF Chat	Logarithmic residues in Banach algebras	1994	Harm Bart Torsten Ehrhardt Bernd Silbermann
+	Complementary Schur complements	1994	Harm Bart Vladislavi Eduardovic Tsekanovskii
+	Encyclopaedia of Mathematics	1994	Michiel Hazewinkel Sergio Albeverio J Alblas S. A. Amitsur I Bakelman G.C.M. Bakker Joep Bakker Claude Bardos Harm Bart Hyman Bass
+	Encyclopaedia of Mathematics	1993	Michiel Hazewinkel Sergio Albeverio J Alblas S. A. Amitsur Bakelman Otto Jan Bakker J. Bakker Claude Bardos Harm Bart Hyman Bass
+	Matricial Coupling and Equivalence After Extension	1992	Harm Bart Vladislavi Eduardovic Tsekanovskii
+	Encyclopaedia of Mathematics	1992	Michiel Hazewinkel Sergio Albeverio J Alblas S. A. Amitsur Bakelman G.C.M. Bakker J. Bakker Claude Bardos Harm Bart Hyman Bass
+	Simultaneous reduction to triangular and companion forms of pairs of matrices: the case rank(I−-AZ)=1	1991	Harm Bart Hȧrald K. Wimmer
+	Topics in matrix and operator theory : [proceedings of the] Workshop on Matrix and Operator Theory, Rotterdam (The Netherlands), June 26-29, 1989	1991	Harm Bart Israel Gohberg M. A. Kaashoek
+	Simultaneous reduction to companion and triangular forms of sets of matrices	1990	Harm Bart G. Ph. A. Thijsse
+	PAIRS OF MATRICES AND THEIR SIMULTANEOUS REDUCTION TO TRIANGULAR AND COMPANION FORMS IN THE CASE OF RANK(I — AZ) =1	1990	Harm Bart Hȧrald K. Wimmer
+	Encyclopaedia of Mathematics	1990	Michiel Hazewinkel Sergio Albeverio J Alblas S. A. Amitsur I Bakelman G.C.M. Bakker Joep Bakker Claude Bardos Harm Bart Hyman Bass
+	Complementary Triangular Forms of Upper Triangular Toeplitz Matrices	1989	Harm Bart G. Ph. A. Thijsse
+	Complementary Triangular Forms of Upper Triangular Toeplitz Matrices	1989	Harm Bart G. Ph. A. Thijsse
+	Encyclopaedia of Mathematics	1989	Michiel Hazewinkel James Truslow Adams Sergio Albeverio S Alblas I Amitsur G Bakelman C.D. Bakker H Bardos Harm Bart A Bass
+	Encyclopaedia of Mathematics	1989	Michiel Hazewinkel J Adamst Sergio Albeverio J Alblas S. A. Amitsur I Bakelman G.C.M. Bakker C.D. Bakker H Bardos Harm Bart
+	Upper triangularization of matrices by permutations and lower triangular similarity transformations	1988	Harm Bart
+ PDF Chat	Upper triangularization of matrices by lower triangular similarities	1988	Harm Bart Paul Jansen
+	Upper Triangularization Of Matrices By Lower Triangular Similarities	1987	Harm Bart Paul Jansen
+	Encyclopaedia of Mathematics	1987	Michiel Hazewinkel James Truslow Adams Sergio Albeverio J Alblas S. A. Amitsur I Bakelman J. Bakker Claude Bardos Harm Bart Michel Bercovier
+	Wiener-Hopf factorization, inverse Fourier transforms and exponentially dichotomous operators	1986	Harm Bart Israel Gohberg M. A. Kaashoek
+	Explicit Wiener-Hopf Factorization and Realization	1986	Harm Bart Israel Gohberg M. A. Kaashoek
+	Multiplication by Diagonals and Reduction to Canonical Factorization	1986	Harm Bart Israel Gohberg M. A. Kaashoek
+	Wiener-Hopf Equations with Symbols Analytic in A Strip	1986	Harm Bart Israel Gohberg M. A. Kaashoek
+	Invariants for Wiener-Hopf Equivalence of Analytic Operator Functions	1986	Harm Bart Israel Gohberg M. A. Kaashoek
+ PDF Chat	Addendum	1985	Harm Bart Israel Gohberg M. A. Kaashoek
+	Fredholm theory of Wiener-Hopf equations in terms of realization of their symbols	1985	Harm Bart Israel Gohberg M. A. Kaashoek
+	The Coupling Method for Solving Integral Equations	1984	Harm Bart Israel Gohberg M. A. Kaashoek
+	An indicator for Wiener-Hopf integral equations with invertible analytic symbol	1983	Harm Bart L. G. Kroon
+ PDF Chat	An indicator for Wiener-Hopf integral equations with invertible analytic symbol	1983	Harm Bart L. G. Kroon
+	Wiener-Hopf Integral Equations, Toeplitz Matrices and Linear Systems	1982	Harm Bart Israel Gohberg M. A. Kaashoek
+	Factorizations of Transfer Functions	1980	Harm Bart Israel Gohberg M. A. Kaashoek Paul Van Dooren
+	Decomposition of operator functions and the multiplication problem for small ideals	1980	Harm Bart Winfried Kaballo G. Ph. A. Thijsse
+ PDF Chat	The stability radius of a bundle of closed linear operators	1980	Harm Bart D. C. Lay
+	Factorization of Real Matrix Functions	1979	Harm Bart Israel Gohberg M. A. Kaashoek
+	Divisibility of Transfer Functions	1979	Harm Bart Israel Gohberg M. A. Kaashoek
+	Stability of Divisors	1979	Harm Bart Israel Gohberg M. A. Kaashoek
+	Minimal Factorizations of Rational Matrix Functions	1979	Harm Bart Israel Gohberg M. A. Kaashoek
+	Stability of Spectral Divisors	1979	Harm Bart Israel Gohberg M. A. Kaashoek
+	Application to Transport Equation	1979	Harm Bart Israel Gohberg M. A. Kaashoek
+	Stable factorizations of monic matrix polynomials and stable invariant subspaces	1978	Harm Bart Israel Gohberg M. A. Kaashoek
+	Characterizations of almost periodic strongly continuous groups and semigroups	1978	Harm Bart Seymour Goldberg
+ PDF Chat	The integral formula for the reduced algebraic multiplicity of meromorphic operator functions	1978	Harm Bart M. A. Kaashoek David C. Lay
+	Periodic strongly continuous semigroups	1977	Harm Bart
+	Relative inverses of meromorphic operator functions and associated holomorphic projection functions	1975	Harm Bart M. A. Kaashoek David C. Lay
+	Holomorphic relative inverses of operator valued functions	1974	Harm Bart
+ PDF Chat	Spectral properties of locally holomorphic vector-valued functions	1974	Harm Bart
+	Stability properties of finite meromorphic operator functions. I	1974	Harm Bart M. A. Kaashoek David C. Lay
+	Stability properties of finite meromorphic operator functions. II	1974	Harm Bart M. A. Kaashoek David C. Lay
+	Stability properties of finite meromorphic operator functions. III	1974	Harm Bart M. A. Kaashoek David C. Lay
+	Meromorphic operator valued functions	1973	Harm Bart

Common Coauthors

Coauthor	Papers Together
M. A. Kaashoek	35
Torsten Ehrhardt	29
Bernd Silbermann	28
Israel Gohberg	21
André C. M. Ran	15
W Hermans	9
Ruth Geer	9
A Primrose	9
Nico H.J. Pijls	9
F Tabak	9
Martin Lenz	9
Frank de Vries	9
Michiel Hazewinkel	9
Sergio Albeverio	9
Johannes A. Lenstra	9
V Gill	9
Jan C. Willems	9
B Krop	9
J. Steenbrink	9
L Strömberg	9
Emanuele Isidori	9
C A Ramm	9
Bridget Wills	9
M Curtain	9
R Fliess	9
H. W. Lenstra	9
Eric Bergshoeff	9
A Isbell	8
Casper G. Schalkwijk	8
S. A. Amitsur	8
Peter Johnson	8
J De Graaf	8
G Engl	8
G Neunzert	8
I Parthasarathy	8
William W. Eaton	8
Alexander Heckman	8
J Alblas	8
T Snaith	8
D Johnstone	8
Marie L. De Bruin	7
Albrecht Beutelspacher	7
Pierre Cartier	7
Michel Bercovier	7
I Stevenhagen	7
I Doets	7
Claude Bardos	7
Jan Wiegerinck	7
Jacek Bochnak	7
H Boas	7

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+ PDF Chat	Logarithmic residues in Banach algebras	1994	Harm Bart Torsten Ehrhardt Bernd Silbermann	18
+	An Introduction to Functional Analysis	2006	Angus E. Taylor P. J. Davis	16
+ PDF Chat	Zero sums of idempotents in Banach algebras	1994	Harm Bart Torsten Ehrhardt Bernd Silbermann	13
+	Logarithmic Residues of Fredholm Operator Valued Functions and Sums of Finite Rank Projections	2002	Harm Bart Torsten Ehrhardt Bernd Silbermann	13
+	Equivalence, linearization, and decomposition of holomorphic operator functions	1978	Israel Gohberg M. A. Kaashoek David C. Lay	13
+ PDF Chat	Spectral properties of locally holomorphic vector-valued functions	1974	Harm Bart	12
+	Sums of Idempotents and Logarithmic Residues in Matrix Algebras	2001	Harm Bart Torsten Ehrhardt Bernd Silbermann	12
+	Logarithmic residues of analytic Banach algebra valued functions possessing a simply meromorphic inverse	2002	Harm Bart Torsten Ehrhardt Bernd Silbermann	11
+	Logarithmic residues, generalized idempotents, and sums of idempotents in Banach algebras	1997	Harm Bart Torsten Ehrhardt Bernd Silbermann	11
+	Finite sums of idempotents and logarithmic residues on connected domains	1995	Torsten Ehrhardt	10
+	When is a matrix a sum of idempotents?	1990	Robert E. Hartwig Mohan S. Putcha	10
+ PDF Chat	The integral formula for the reduced algebraic multiplicity of meromorphic operator functions	1978	Harm Bart M. A. Kaashoek David C. Lay	10
+	Sums of idempotent matrices	1990	Pei Yuan Wu	10
+ PDF Chat	Operator theory: Advances and applications	1991		9
+ PDF Chat	Operator valued analytic functions and generalizations of spectral theory	1968	Lothrop Mittenthal	9
+ PDF Chat	Minimal identities for algebras	1950	A. S. Amitsur Jakob Levitzki	8
+	Logarithmic residues, Rouché’s theorem, and spectral regularity: The <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" display="inline" overflow="scroll"><mml:msup><mml:mrow><mml:mi>C</mml:mi></mml:mrow><mml:mrow><mml:mo>∗</mml:mo></mml:mrow></mml:msup></mml:math>-algebra case	2012	Harm Bart Torsten Ehrhardt Bernd Silbermann	8
+ PDF Chat	Sums of small numbers of idempotents.	1967	Carl Pearcy David M. Topping	7
+	Banach Algebras with Symbol and Singular Integral Operators	1987	Naum Yakovlevich Krupnik	7
+	Wiener-Hopf Integral Equations, Toeplitz Matrices and Linear Systems	1982	Harm Bart Israel Gohberg M. A. Kaashoek	7
+	Classes of Linear Operators Vol. I	1990	Israel Gohberg Seymour Goldberg M. A. Kaashoek	7
+ PDF Chat	Perturbation Theory for Linear Operators	1995	Tosio Kato	7
+	Logarithmic residues in the Banach algebra generated by the compact operators and the identity	2004	Harm Bart Torsten Ehrhardt Bernd Silbermann	7
+	Classes of Linear Operators	1990	Israel Gohberg Seymour Goldberg M.A. Kaashoek	7
+	The Coupling Method for Solving Integral Equations	1984	Harm Bart Israel Gohberg M. A. Kaashoek	7
+	Factorizations of Transfer Functions	1980	Harm Bart Israel Gohberg M. A. Kaashoek Paul Van Dooren	7
+	Stability properties of finite meromorphic operator functions. I	1974	Harm Bart M. A. Kaashoek David C. Lay	6
+	Spectral Regularity of Banach Algebras and Non-commutative Gelfand Theory	2012	Harm Bart Torsten Ehrhardt Bernd Silbermann	6
+	Trace conditions for regular spectral behavior of vector-valued analytic functions	2009	Harm Bart Torsten Ehrhardt Bernd Silbermann	6
+	Non-commutative Gelfand Theories	2010	Steffen Roch Pedro A. Santos Bernd Silbermann	5
+	Wiener-Hopf factorization, inverse Fourier transforms and exponentially dichotomous operators	1986	Harm Bart Israel Gohberg M. A. Kaashoek	5
+	Convolution equations and projection methods for their solution	2005	Israel Gohberg Israel Feldman	5
+ PDF Chat	Upper triangularization of matrices by lower triangular similarities	1988	Harm Bart Paul Jansen	5
+	Wiener-Hopf factorization and realization	2005	Harm Bart Israel Gohberg M. A. Kaashoek	5
+	C* - Algebras and Numerical Analysis	2000	Ronald Hagen Steffen Roch Bernd Silbermann	5
+	An indicator for Wiener-Hopf integral equations with invertible analytic symbol	1983	Harm Bart L. G. Kroon	5
+	Unbounded Linear Operators	1990	Israel Gohberg Seymour Goldberg M. A. Kaashoek	5
+	Factorization of Matrix Functions and Singular Integral Operators	1981	Kevin F. Clancey Israel Gohberg	5
+	Fredholm theory of Wiener-Hopf equations in terms of realization of their symbols	1985	Harm Bart Israel Gohberg M. A. Kaashoek	5
+	On the factorization of a nonsingular rational matrix	1975	P. Dewilde Joos Vandewalle	5
+	Linear Operator Pencils	1990	Israel Gohberg Seymour Goldberg M. A. Kaashoek	5
+	Invariant Subspaces of Matrices with Applications	2006	Israel Gohberg Peter Lancaster Leiba Rodman	5
+	Sums of Idempotents in the Banach Algebra Generated by the Compact Operators and the Identity	2002	Harm Bart Torsten Ehrhardt Bernd Silbermann	5
+	Meromorphie in der Theorie der Fredholmoperatoren mit Anwendungen auf elliptische Differentialoperatoren	1970	Bernhard Gramsch	4
+	Closed Linear Operators on Banach Spaces	1965	M. A. Kaashoek	4
+ PDF Chat	Analytic operator functions with compact spectrum. I. Spectral nodes, linearization and equivalence	1981	M. A. Kaashoek C. V. M. van der Mee Leiba Rodman	4
+	Introduction to Functional Analysis.	1959	Casper Goffman Amy E. Taylor	4
+	Holomorphic Operator Functions of One Variable and Applications	2009	Israel Gohberg Jürgen Leiterer	4
+	Classes of Linear Operators Vol. I	1990	Israel Gohberg M. A. Kaashoek Seymour Goldberg	4
+	The simplest proof of Burnside's theorem on matrix algebras	2003	Victor Lomonosov Peter Rosenthal	4