Realizable regions for the symmetric nonnegative inverse eigenvalue problem for \(6 \times 6\) matrices. (English) Zbl 07925359
Reviewer: Juan Ramón Torregrosa Sánchez (València)
Found 149 Documents (Results 1–100)
A characterization of sets realizable by compensation in the SNIEP. (English) Zbl 1543.15012
Reviewer: John D. Dixon (Ottawa)
About the persymmetric nonnegative inverse eigenvalue problem in low dimension. (English) Zbl 1539.15020
Reviewer: Tin Yau Tam (Reno)
On Hankel matrices and the symmetric nonnegative inverse eigenvalue problem. (English) Zbl 1537.15012
Reviewer: Juan Ramón Torregrosa Sánchez (València)
Perturbing eigenvalues of nonnegative centrosymmetric matrices. (English) Zbl 1530.15004
Reviewer: P. Shakila Banu (Erode)
Proof of a conjecture on polynomials preserving nonnegative matrices. (English) Zbl 1525.15013
Reviewer: John D. Dixon (Ottawa)
A note for the SNIEP in size 5. (English) Zbl 1522.15018
Reviewer: Tin Yau Tam (Reno)
On a numerical construction of doubly stochastic matrices with prescribed eigenvalues. (English) Zbl 1515.65084
A Riemannian inexact Newton dogleg method for constructing a symmetric nonnegative matrix with prescribed spectrum. (English) Zbl 07676507
On the doubly stochastic realization of spectra. (English) Zbl 1504.15110
Reviewer: Mihail Voicu (Iaşi)
Inverse eigenvalue problem for Jacobi matrix and nonnegative matrices. (English) Zbl 1489.65059
MSC:
65F18
Polynomials that preserve nonnegative matrices. (English) Zbl 1482.15011
Reviewer: John D. Dixon (Ottawa)
Centrosymmetric universal realizability. (English) Zbl 1485.15017
Reviewer: John D. Dixon (Ottawa)
Permutative universal realizability. (English) Zbl 1482.15012
Reviewer: John D. Dixon (Ottawa)
Construction of Lefkovitch and doubly Lefkovitch matrices with maximal eigenvalues and some diagonal elements prescribed. (English) Zbl 1469.15021
Some notes on the spectra of nonnegative symmetric \(5\times 5\) matrices. (English) Zbl 1466.15015
Reviewer: John D. Dixon (Ottawa)
Some additional notes on the spectra of non-negative symmetric \(5 \times 5\) matrices. (English) Zbl 1465.15022
Universal realizability in low dimension. (English) Zbl 1473.15016
Reviewer: Juan Ramón Torregrosa Sánchez (Valencia)
A characterization of trace-zero sets realizable by compensation in the SNIEP. (English) Zbl 1458.15030
The role of certain Brauer and Rado results in the nonnegative inverse spectral problems. (English) Zbl 1450.15016
Reviewer: Tin Yau Tam (Reno)
On the spectra of some \(g\)-circulant matrices and applications to nonnegative inverse eigenvalue problem. (English) Zbl 1437.15024
Reviewer: Tin Yau Tam (Reno)
Updating a map of sufficient conditions for the real nonnegative inverse eigenvalue problem. (English) Zbl 1433.15023
Realizable lists via the spectra of block matrices. (English) Zbl 1429.15014
Reviewer: Mihail Voicu (Iaşi)
The inverse eigenvalue problem for Leslie matrices. (English) Zbl 1423.15017
Reviewer: Juan Ramon Torregrosa Sanchez (Valencia)
Brauer’s theorem and nonnegative matrices with prescribed diagonal entries. (English) Zbl 1423.15028
Reviewer: Juan Ramon Torregrosa Sanchez (Valencia)
Constructive methods for spectra with three nonzero elements in the nonnegative inverse eigenvalue problem. (English) Zbl 1427.15011
The NIEP. (English) Zbl 1427.15001
André, Carlos (ed.) et al., Operator theory, operator algebras, and matrix theory. Based on the presentations at the international workshop on operator theory and operator algebras, WOAT 2016, Lisbon, Portugal, July 5–8, 2016. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 267, 199-220 (2018).
Reviewer: Tin Yau Tam (Reno)
Inverse eigenvalue problem of interval nonnegative matrices of order \(\leq 3\). (English) Zbl 1413.15027
On spectra of weighted graphs of order \(\leq 5\). (English) Zbl 1397.05101
Garijo, Delia (ed.) et al., Discrete mathematics days 2018. Extended abstracts of the 11th “Jornadas de matemática discreta y algorítmica” (JMDA), Sevilla, Spain, June 27–29, 2018. Amsterdam: Elsevier. Electronic Notes in Discrete Mathematics 68, 95-100 (2018).
On nonnegative matrices with prescribed eigenvalues and diagonal entries. (English) Zbl 1437.15023
Reviewer: Mohammad Sababheh (Amman)
Block matrices and Guo’s index for block circulant matrices with circulant blocks. (English) Zbl 1396.15024
Various \(3 \times 3\) nonnegative matrices with prescribed eigenvalues and diagonal entries. (English) Zbl 1393.15011
A characterization of trace zero bisymmetric nonnegative \(5\times 5\) matrices. (English) Zbl 1380.15010
A recursive condition for the symmetric nonnegative inverse eigenvalue problem. (English) Zbl 1379.15009
Reviewer: Tin Yau Tam (Auburn)
An arbitrary band structure construction of totally nonnegative matrices with prescribed eigenvalues. (English) Zbl 1376.65059
Reviewer: Constantin Popa (Constanţa)
Symmetric nonnegative realizability via partitioned majorization. (English) Zbl 1375.15015
Reviewer: C. M. da Fonseca (Safat)
A map of sufficient conditions for the symmetric nonnegative inverse eigenvalue problem. (English) Zbl 1368.15016
Ruling out certain 5-spectra for the symmetric nonnegative inverse eigenvalue problem. (English) Zbl 1353.15008
Inverse spectral problem for a class of nonnegative matrices. (Chinese. English summary) Zbl 1363.65067
Connecting sufficient conditions for the symmetric nonnegative inverse eigenvalue problem. (English) Zbl 1334.15028
Power series with positive coefficients arising from the characteristic polynomials of positive matrices. (English) Zbl 1345.15011
An algorithm for constructing nonnegative matrices with prescribed real eigenvalues. (English) Zbl 1338.65106
A finite-step construction of totally nonnegative matrices with specified eigenvalues. (English) Zbl 1334.65074
Reviewer: Raffaella Pavani (Milano)
Normal nonnegative realization of spectra. (English) Zbl 1312.15019
Reviewer: Iveta Hnetynkova (Praha)
Persymmetric and bisymmetric nonnegative inverse eigenvalue problem. (English) Zbl 1310.15017
MSC:
15A18
Extremal inverse eigenvalue problem for symmetric doubly arrow matrices. (English) Zbl 1304.15010
Reviewer: C. M. da Fonseca (Safat)
Numerical methods for solving nonnegative inverse singular value problems with prescribed structure. (English) Zbl 1302.65091
Reviewer: Drahoslava Janovská (Praha)
Perturbations on constructible lists preserving realizability in the NIEP and questions of Monov. (English) Zbl 1321.15032
A geometrical representation of the spectra of four dimensional nonnegative matrices. (English) Zbl 1321.15031
Constructing new realisable lists from old in the NIEP. (English) Zbl 1290.15006
Reviewer: Juan Ramon Torregrosa Sanchez (Valencia)
Formal power series and the spectra of nonnegative real matrices. (English) Zbl 1296.15006
Reviewer: Mihail Voicu (Iaşi)
A contribution to the inverse eigenvalue problem for non-negative matrices. (English) Zbl 1297.15011
Reviewer: Mihail Voicu (Iaşi)
On the inverse eigenvalue problem for doubly stochastic matrices of a small order. (Chinese. English summary) Zbl 1289.15053
A family of realizability criteria for the real and symmetric nonnegative inverse eigenvalue problem. (English) Zbl 1289.15052
Reviewer: Helena Šmigoc (Dublin)
Generalization of some results concerning eigenvalues of a certain class of matrices and some applications. (English) Zbl 1277.15010
Reviewer: Alessandra Bernardi (Torino)
On the alternating direction method of multipliers for nonnegative inverse eigenvalue problems with partial eigendata. (English) Zbl 1255.65080
Inverse spectral problem for generalized row stochastic matrices. (Chinese. English summary) Zbl 1274.65112
A note on the nonzero spectra of irreducible matrices. (English) Zbl 1257.15006
Reviewer: Tin Yau Tam (Auburn)
A note on “Methods for constructing distance matrices and the inverse eigenvalue problem”. (English) Zbl 1270.15007
On the inverse eigenvalue problem for nonnegative matrices of order two to five. (English) Zbl 1241.15008
Reviewer: C. M. da Fonseca (Coimbra)
A constructive version of the Boyle-Handelman theorem on the spectra of nonnegative matrices. (English) Zbl 1241.15007
Reviewer: Süleyman Güler (Aydin)
Nonnegative inverse eigenvalue problems with partial eigendata. (English) Zbl 1238.65029
Reviewer: R. Militaru (Craiova)
Isospectral flow method for nonnegative inverse eigenvalue problem with prescribed structure. (English) Zbl 1229.65067
Reviewer: Georg Hebermehl (Berlin)
On \(p\)th roots of stochastic matrices. (English) Zbl 1223.15042
Reviewer: Huang Wenxue (Scarborough)
Local inverse spectrum theorems for real and nonnegative matrices. (English) Zbl 1240.15015
Reviewer: Arnold Richard Kräuter (Leoben)
Nonnegative realization of complex spectra. (English) Zbl 1211.15012
MSC:
15A18
Nonnegatively realizable spectra with two positive eigenvalues. (English) Zbl 1205.15019
Reviewer: Valeriu Prepeliţă (Bucureşti)
Spectra that are Newton after extension or translation. (English) Zbl 1205.15018
Reviewer: C. M. da Fonseca (Coimbra)
On a generalization of Soules bases. (English) Zbl 1201.15019
Reviewer: Ludwig Elsner (Bielefeld)
Guo perturbation for symmetric nonnegative circulant matrices. (English) Zbl 1178.15009
Reviewer: C. M. da Fonseca (Coimbra)
An upper bound on the characteristic polynomial of a nonnegative matrix leading to a proof of the Boyle-Handelman conjecture. (English) Zbl 1178.15007
Reviewer: Mihail Voicu (Iaşi)
Solving inverse eigenvalue problems via Householder and rank-one matrices. (English) Zbl 1161.65028
Reviewer: Raffaella Pavani (Milano)
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