Found 52 Documents (Results 1–52)
On isometric full embeddings of symplectic dual polar spaces into Hermitian dual polar spaces. (English) Zbl 1166.51002
Reviewer: Rolf Riesinger (Wien)
Matrix completion problems. (English) Zbl 1163.15011
Reviewer: Grozio Stanilov (Sofia)
A note on sum of powers of the Laplacian eigenvalues of bipartite graphs. (English) Zbl 1165.05020
MSC:
05C50
Quasi-isometries in semi-Hilbertian spaces. (English) Zbl 1176.47004
Reviewer: Željko Čučković (Toledo)
The conjugate-normal Toeplitz problem. (English) Zbl 1161.15006
Reviewer: A. Arvanitoyeorgos (Patras)
Some investigation on Hermitian positive definite solutions of the matrix equation \(X^s+A^*X^{-t}A=Q\). (English) Zbl 1165.15014
Reviewer: Sheng Chen (Harbin)
\(T\)-observers. (English) Zbl 1159.93007
Error estimate of eigenvalues of perturbed second-order discrete Sturm-Liouville problems. (English) Zbl 1172.39022
Reviewer: Hussain A. El-Saify (Beni Suef)
Singular value inequalities for commutators of Hilbert space operators. (English) Zbl 1162.47010
Reviewer: Carsten Michels (Oldenburg)
Inverse positivity of perturbed tridiagonal \(M\)-matrices. (English) Zbl 1165.15020
Reviewer: Václav Burjan (Praha)
Continuity of the generalized spectral radius in max algebra. (English) Zbl 1168.15005
Reviewer: Rodica Covaci (Cluj-Napoca)
Trace inequalities for products of matrices. (English) Zbl 1175.94057
Reviewer: Juan Rafael Sendra (Alcalá de Henares)
Riordan matrices in the reciprocation of quadratic polynomials. (English) Zbl 1175.41029
Reviewer: Dan Bārbosu (Baia Mare)
Nonlinear maps preserving numerical radius of indefinite skew products of operators. (English) Zbl 1172.47026
Reviewer: Nadia Boudi (Meknes)
Characterizations of derivations and Jordan derivations on Banach algebras. (English) Zbl 1171.47030
Reviewer: Madjid Mirzavaziri (Mashhad)
On a correspondence between regular and non-regular operator monotone functions. (English) Zbl 1178.47011
Reviewer: Prasanna Sahoo (Louisville)
Galois extensions and subspaces of alternating bilinear forms with special rank properties. (English) Zbl 1211.15030
On nested split graphs whose second largest eigenvalue is less than 1. (English) Zbl 1194.05098
MSC:
05C50
Inner functions of numerical contractions. (English) Zbl 1165.47007
Reviewer: V. Lokesha (Bangalore)
The derivation Lie algebra of the higher rank Virasoro-like algebra and its automorphism groups. (English) Zbl 1211.17019
Reviewer: Olaf Ninnemann (Berlin)
Algebraic systems of matrices and Gröbner basis theory. (English) Zbl 1161.39021
Reviewer: Sheng Chen (Harbin)
Sign \(k\)-potent sign patterns and ray \(k\)-potent ray patterns that allow \(k\)-potence. (English) Zbl 1214.15023
On the index and the order of quasi-regular implicit systems of differential equations. (English) Zbl 1172.34003
Reviewer: Werner M. Seiler (Kassel)
A contribution to the normal Hankel problem. (English) Zbl 1163.15029
Reviewer: A. Arvanitoyeorgos (Patras)
All-derivable points in matrix algebras. (English) Zbl 1167.15012
Reviewer: Bojan Kuzma (Ljubljana)
Suborbits of \(m\)-dimensional totally isotropic subspaces under finite singular classical groups. (English) Zbl 1169.05310
MSC:
05B25
Graphs with three distinct eigenvalues and largest eigenvalue less than 8. (English) Zbl 1225.05161
MSC:
05C50
On the solution of the nonlinear matrix equation \(X^n=f(X)\). (English) Zbl 1165.15015
Reviewer: Sheng Chen (Harbin)
Finiteness properties of differential polynomials. (English) Zbl 1183.16036
Reviewer: Charles Lanski (Los Angeles)
A counterexample to a conjecture of Friedland. (English) Zbl 1165.15011
Reviewer: Sheng Chen (Harbin)
MSC:
15A21
Some properties of zeros of polynomials with vanishing coefficients. (English) Zbl 1173.30004
Reviewer: Eligiusz Złotkiewicz (Lublin)
MSC:
30C15
Friedrichs extension of operators defined by symmetric banded matrices. (English) Zbl 1171.39004
Reviewer: Zhiming Guo (Ontario)
Trace conditions for regular spectral behavior of vector-valued analytic functions. (English) Zbl 1188.47014
Reviewer: Monika Winklmeier (Bogotá)
The impact of eigenvalue locality on the convergence behavior of the PSD method for two-cyclic matrices. (English) Zbl 1163.65016
Reviewer: Răzvan Răducanu (Iaşi)
MSC:
65F10
Minimal matrices and the corresponding minimal curves on flag manifolds in low dimension. (English) Zbl 1175.46068
Maximizing the Laplacian spectral radii of graphs with given diameter. (English) Zbl 1184.05081
MSC:
05C50
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