Equivalence and congruence of matrices under the action of standard parabolic subgroups.
Equivalence of von Neumann regular and idempotent matrices
Essential decomposition of polynomially normal matrices in real indefinite inner product spaces.
Existence of matrices with prescribed entries.
Extension of Partial Diagonals of Matrices I.
Extensions of the Graham-Leeb-Rothschild theorem.
Generalized approximation numbers
Generalized euclidean group rings.
G-tridiagonal majorization on
For , it is said that is g-tridiagonal majorized by (and it is denoted by ) if there exists a tridiagonal g-doubly stochastic matrix such that . In this paper, the linear preservers and strong linear preservers of are characterized on .
Hidden relations for the Smith invariants of a matrix sum
Higher-order linear matrix descriptor differential equations of Apostol-Kolodner type.
H-normal matrices
Hyperreflexive operators on finite dimensional Hilbert spaces
In this paper a complete characterization of hyperreflexive operators on finite dimensional Hilbert spaces is given.
Incomplete matrix partial fraction expansion
Indecomposable (1,3)-groups and a matrix problem
Almost completely decomposable groups with a critical typeset of type and a -primary regulator quotient are studied. It is shown that there are, depending on the exponent of the regulator quotient , either no indecomposables if ; only six near isomorphism types of indecomposables if ; and indecomposables of arbitrary large rank if .
Indefinite affine hyperspheres admitting a pointwise symmetry. I.
Invariants and canonical equations of hypersurfaces of second order in -dimensional Euclidean space.
Isotropic subspaces for pairs of Hermitian matrices.
Jordan basis for an infinite-dimensional space
La controverse de 1874 entre Camille Jordan et Leopold Kronecker
Une vive querelle oppose en 1874 Camille Jordan et Leopold Kronecker sur l’organisation de la théorie des formes bilinéaires, considérée comme permettant un traitement « général » et « homogène » de nombreuses questions développées dans des cadres théoriques variés au xixe siècle et dont le problème principal est reconnu comme susceptible d’être résolu par deux théorèmes énoncés indépendamment par Jordan et Weierstrass. Cette controverse, suscitée par la rencontre de deux théorèmes que nous considérerions...