Found 1,119 Documents (Results 1–100)
Brauer and Geršgorin locations of zeros of perturbed Chebyshev polynomials of the second kind by dilation. (English) Zbl 07920029
The eigenvalue estimates of \(p\)-Laplacian of totally real submanifolds in generalized complex space forms. (English) Zbl 07906427
Further techniques on a polynomial positivity question of Collins, Dykema, and Torres-Ayala. (English) Zbl 07895268
Improved eigenvalue inequalities via two major subclasses of superquadratic functions. (English) Zbl 07874836
Dependence of eigenvalue of Sturm-Liouville operators on the real coupled boundary condition. (English) Zbl 07867878
Interpolation of generalized Ky Fan inequality for normal map on Eaton triple: using gradients of \(G\)-increasing functions. (English) Zbl 07863179
A new preconditioned nonlinear conjugate gradient method in real arithmetic for computing the ground states of rotational Bose-Einstein condensate. (English) Zbl 07860851
Finite size corrections for real eigenvalues of the elliptic Ginibre matrices. (English) Zbl 1543.15028
Reviewer: Sho Matsumoto (Kagoshima)
Analysis on compact symmetric spaces: eigenfunctions and nonlinear Schrödinger equations. (English) Zbl 1541.35472
Cardona, Duván (ed.) et al., Extended abstracts 2021/2022. Methusalem lectures, Ghent, Belgium. Cham: Birkhäuser. Trends Math., Res. Perspect. Ghent Anal. PDE Cent. 3, 235-240 (2024).
A Reilly type integral inequality for the \(p\)-Laplacian and applications to submanifolds of the unit sphere. (English) Zbl 1537.53017
Optimal decay rates in Sobolev norms for singular values of integral operators. (English) Zbl 07845484
The product of \(m\) real \(N \times N\) Ginibre matrices: real eigenvalues in the critical regime \(m = O(N)\). (English) Zbl 1542.81036
A fast algorithm for the Schrödinger equation in quaternionic quantum mechanics. (English) Zbl 1541.81053
An engineering boundary eigenvalue problem studied by functional-analytic methods. (English) Zbl 1534.65076
Linearity of Cartan and Wasserstein means. (English) Zbl 1532.15027
Reviewer: Roksana Słowik (Gliwice)
Integrability of matrices. (English) Zbl 1531.15013
Analyticity of Steklov eigenvalues of nearly hyperspherical domains in \(\mathbb{R}^{d+1}\). (English) Zbl 07789537
On the Hurwitz stability of noninteger Hadamard powers of stable polynomials. (English) Zbl 07787817
A complex structure-preserving algorithm for computing the singular value decomposition of a quaternion matrix and its applications. (English) Zbl 1542.65046
Reviewer: Bahar Arslan (Bursa)
On sign-real spectral radii and sign-real expansive matrices. (English) Zbl 1532.15014
Reviewer: Tin Yau Tam (Reno)
On singular value decomposition for split quaternion matrices and applications in split quaternionic mechanics. (English) Zbl 1523.15017
Neumann domains of planar analytic eigenfunctions. arXiv:2410.07811
Preprint, arXiv:2410.07811 [math.AP] (2024).
Uniform Approximation of Eigenproblems of a Large-Scale Parameter-Dependent Hermitian Matrix. arXiv:2409.05791
Preprint, arXiv:2409.05791 [math.NA] (2024).
Semiclassical functional calculus on nilpotent Lie groups and their compact nilmanifolds. arXiv:2409.05520
Preprint, arXiv:2409.05520 [math.AP] (2024).
Convexity of sums of eigenvalues of a segment of unitaries. arXiv:2408.16906
Preprint, arXiv:2408.16906 [math.FA] (2024).
Norm Inequalities for Hilbert space operators with Applications. arXiv:2404.01982
Preprint, arXiv:2404.01982 [math.FA] (2024).
Bounds of restriction of characters to submanifolds. arXiv:2402.03178
Preprint, arXiv:2402.03178 [math.RT] (2024).
Floquet multipliers and the stability of periodic linear differential equations: a unified algorithm and its computer realization. (English) Zbl 07919808
Quantum heat engine with level degeneracy for oscillator-shaped potential well. (English) Zbl 1537.81098
Fluctuations and correlations for products of real asymmetric random matrices. (English) Zbl 1530.60006
Diameter and Laplace eigenvalue estimates for compact homogeneous Riemannian manifolds. (English) Zbl 1536.53119
Reviewer: Nathaniel Eldredge (Greeley)
Algebraic techniques for eigenvalues and eigenvectors of a nectarine matrix in nectarine algebra. (English) Zbl 1530.15032
Upper bounds for the size of set systems with a symmetric set of Hamming distances. (English) Zbl 07773817
Reviewer: William G. Brown (Montréal)
Spectral analysis of the linearized triple-quantum-dot shuttle in the adiabatic regime. (English) Zbl 1535.81128
The characteristic polynomials of uniform double hyperstars and uniform hypertriangles. (English) Zbl 1525.05092
Non-real eigenvalues for indefinite \(q\)-Sturm-Liouville problem. (English) Zbl 1523.39005
Reviewer: Wengui Yang (Sanmenxia)
An efficient method for the split quaternion equality constrained least squares problem in split quaternionic mechanics. (English) Zbl 07735374
Schrödinger operators with oblique transmission conditions in \(\mathbb{R}^2\). (English) Zbl 1529.81063
On the spectrum of a quasi-differential boundary value problem of the second-order. (English. Russian original) Zbl 1521.34023
Russ. Math. 67, No. 1, 1-19 (2023); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2023, No. 1, 3-24 (2023).
The minimum number of multiplicity 1 eigenvalues among real symmetric matrices whose graph is a 2-linear tree. (English) Zbl 1514.15014
An update on the \(L^p\)-\(L^q\) norms of spectral multipliers on unimodular Lie groups. (English) Zbl 1522.43002
Some bounds for central moments and spreads of matrices. (English) Zbl 1518.60023
Reviewer: Fraser Daly (Edinburgh)
Spectral properties related to generalized complementary Romanovski-Routh polynomials. (English) Zbl 1515.42020
Reviewer: Wilfredo Urbina (Chicago)
Real eigenvalues of elliptic random matrices. (English) Zbl 1510.15051
Reviewer: Sho Matsumoto (Kagoshima)
Subspace method for the estimation of large-scale structured real stability radius. (English) Zbl 1506.65059
A novel algebraic approach for the Schrödinger equation in split quaternionic mechanics. (English) Zbl 1524.81043
Construction of Brooks-Lindenstrauss kernels on affine buildings of arbitrary reduced type, with applications. arXiv:2312.06860
Preprint, arXiv:2312.06860 [math.CA] (2023).
Isoperimetric inequalities for inner parallel curves. arXiv:2311.18413
Preprint, arXiv:2311.18413 [math.AP] (2023).
Spectral projections and resolvent estimates on Damek-Ricci spaces and their applications. arXiv:2306.06875
Preprint, arXiv:2306.06875 [math.FA] (2023).
The converse of the Cowling–Obrechkoff–Thron theorem. arXiv:2303.12852
Preprint, arXiv:2303.12852 [math.RA] (2023).
On \(G\)-majorization inequalities for gradients of \(G\)-increasing functions. (English) Zbl 07681798
On eigenvalues of real symmetric interval matrices: sharp bounds and disjointness. (English) Zbl 1512.15009
Reviewer: Wei-Ru Xu (Chengdu)
Simple proof of existence of a complex eigenvalue of a complex square matrix \(\ldots\)and yet another proof of the fundamental theorem of algebra with linear algebra. (English) Zbl 1508.15007
Reviewer: Tin Yau Tam (Reno)
Nonlinear elliptic equation with nonlocal integral boundary condition depending on two parameters. (English) Zbl 1498.65138
A real structure-preserving algorithm based on the quaternion QR decomposition for the quaternion equality constrained least squares problem. (English) Zbl 1504.65098
Some analytical properties of the matrix related to \(q\)-coloured Delannoy numbers. (English) Zbl 1500.05037
Density of small singular values of the shifted real Ginibre ensemble. (English) Zbl 1503.15053
Reviewer: Sho Matsumoto (Kagoshima)
Inequalities for real number sequences with applications in spectral graph theory. (English) Zbl 07584102
Generalized Rayleigh-quotient formulas for the real parts, imaginary parts, and moduli of simple eigenvalues of compact operators. (English) Zbl 1490.34107
Stability and distance to instability for polynomial matrix families. Complex perturbations. (English) Zbl 1493.15053
Reviewer: Olga M. Katkova (Boston)
Upper bounds of nodal sets for eigenfunctions of eigenvalue problems. (English) Zbl 1489.35034
Reviewer: Marius Ghergu (Dublin)
Roots of Gårding hyperbolic polynomials. (English) Zbl 1503.26023
Reviewer: Julià Cufí (Bellaterra)
Bounds on the non-real eigenvalues of nonlocal indefinite Sturm-Liouville problems with coupled boundary conditions. (English) Zbl 1494.34108
Reviewer: Jihed Hedhly (Tunis)
On the number of real eigenvalues of a product of truncated orthogonal random matrices. (English) Zbl 1486.15039
Reviewer: Sho Matsumoto (Kagoshima)
Fundamental gaps of spherical triangles. (English) Zbl 1491.35300
Reviewer: Victor Alexandrov (Novosibirsk)
Minimal and characteristic polynomials of symmetric matrices in characteristic two. (English) Zbl 1495.15008
Real symmetric matrices with partitioned eigenvalues. (English) Zbl 1478.14088
Reviewer: Matyas Domokos (Budapest)
On circulant nut graphs. (English) Zbl 1483.05093
Reviewer: Ayesha Shabbir (Ahsaa-Hofouf)
A unified proof of interlacing properties of eigenvalues of totally positive matrices. (English) Zbl 1483.15009
Reviewer: Iveta Hnetynkova (Praha)
Two families of circulant nut graphs. arXiv:2210.08334
Preprint, arXiv:2210.08334 [math.CO] (2022).
Extensions of the fundamental theorem of algebra. arXiv:2203.14689
Preprint, arXiv:2203.14689 [math.RA] (2022).
Angular coefficients for symmetry-adapted configuration states in \(jj\)-coupling. (English) Zbl 1523.81208
A real analyticity result for symmetric functions of the eigenvalues of a quasiperiodic spectral problem for the Dirichlet Laplacian. (English) Zbl 1524.35419
Reviewer: Manfred Möller (Johannesburg)
Non-real eigenvalues of a class of indefinite Sturm-Liouville operators with discontinuity at interior points. (Chinese. English summary) Zbl 1513.34125
Some analytical and numerical results for the zeros of a class of Fibonacci-like polynomials. (English) Zbl 1499.11046
Singularity of discrete random matrices. (English) Zbl 1491.15040
Reviewer: Sho Matsumoto (Kagoshima)
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