AbstractA sufficient condition for a set of positive integers {g1,g2,...,gn} to be the geometric multiplicites of given eigenvalues for some strictly lower triangular completions of a partial matrix is given. A method is proposed which allows one to reduce the investigation of geometric multiplicities of completed matrix with different eigenvalues to the nilpotent case
A real n by n matrix B is a P_0^+ -matrix if for each k in {1, 2, . . . , n} every k by k principal ...
AbstractThe dimensions of sets of matrices of various types, with specified eigenvalue multiplicitie...
AbstractRodman and Shalom present in Linear Algebra Appl. 168:221–249 (1992) two completion conjectu...
AbstractA sufficient condition for a set of positive integers {g1,g2,...,gn} to be the geometric mul...
AbstractAn algorithm to obtain a completion of a partial upper triangular matrices with prescribed e...
AbstractJordan forms of completions of partial Jordan matrices are studied. Our approach is based on...
AbstractLet λ be an eigenvalue of an n-by-n matrix A. The allowable patterns of geometric multiplici...
Let λ be an eigenvalue of an n-by-n matrix A. The allowable patterns of geometric multiplicities of ...
AbstractIn this paper five questions related with the existence of nilpotent completions of partial ...
In the theory of multiplicities for eigenvalues of symmetric matrices whose graph is a tree, it prov...
AbstractWe summarize seventeen equivalent conditions for the equality of algebraic and geometric mul...
We summarize seventeen equivalent conditions for the equality of algebraic and geometric multiplicit...
AbstractJordan structures of strictly lower triangular completions of matrices over an algebraically...
AbstractAn n×n matrix is called an N-matrix if all principal minors are negative. In this paper, we ...
AbstractWe give a counterexample to a conjecture about the possible Jordan normal forms of nilpotent...
A real n by n matrix B is a P_0^+ -matrix if for each k in {1, 2, . . . , n} every k by k principal ...
AbstractThe dimensions of sets of matrices of various types, with specified eigenvalue multiplicitie...
AbstractRodman and Shalom present in Linear Algebra Appl. 168:221–249 (1992) two completion conjectu...
AbstractA sufficient condition for a set of positive integers {g1,g2,...,gn} to be the geometric mul...
AbstractAn algorithm to obtain a completion of a partial upper triangular matrices with prescribed e...
AbstractJordan forms of completions of partial Jordan matrices are studied. Our approach is based on...
AbstractLet λ be an eigenvalue of an n-by-n matrix A. The allowable patterns of geometric multiplici...
Let λ be an eigenvalue of an n-by-n matrix A. The allowable patterns of geometric multiplicities of ...
AbstractIn this paper five questions related with the existence of nilpotent completions of partial ...
In the theory of multiplicities for eigenvalues of symmetric matrices whose graph is a tree, it prov...
AbstractWe summarize seventeen equivalent conditions for the equality of algebraic and geometric mul...
We summarize seventeen equivalent conditions for the equality of algebraic and geometric multiplicit...
AbstractJordan structures of strictly lower triangular completions of matrices over an algebraically...
AbstractAn n×n matrix is called an N-matrix if all principal minors are negative. In this paper, we ...
AbstractWe give a counterexample to a conjecture about the possible Jordan normal forms of nilpotent...
A real n by n matrix B is a P_0^+ -matrix if for each k in {1, 2, . . . , n} every k by k principal ...
AbstractThe dimensions of sets of matrices of various types, with specified eigenvalue multiplicitie...
AbstractRodman and Shalom present in Linear Algebra Appl. 168:221–249 (1992) two completion conjectu...
DOI
Add to ORKG