Výsledky vyhľadávania - "EIGENVALUES"

Efficient optimization of low-rank antisymmetric product of geminals wavefunction using the direct Givens rotation method.

Autori: Kawasaki, Airi Oshima, Rei Nakatani, Naoki a ďalší

Zdroj: Journal of Chemical Physics. 11/21/2025, Vol. 163 Issue 19, p1-8. 8p.

Predmety: *WAVE functions, *EIGENVALUES, *DENSITY functional theory, *ELECTRONIC structure, *QUANTUM chemistry

Imperfect diffusion-controlled reactions on a torus and on a pair of balls.

Autori: Grebenkov, Denis S.¹ (AUTHOR) denis.grebenkov@polytechnique.edu

Zdroj: Journal of Chemical Physics. 7/21/2025, Vol. 163 Issue 3, p1-17. 17p.

Predmety: *REACTION-diffusion equations, *EIGENVALUES, *SPECTRAL theory, *CURVILINEAR coordinates, *CARTESIAN coordinates

Assessment of RPA and σ-functional methods for the calculation of dipole moments and static polarizabilities and hyperpolarizabilities.

Autori: Mandalia, Raviraj Fauser, Steffen Trushin, Egor a ďalší

Zdroj: Journal of Chemical Physics. 5/14/2025, Vol. 162 Issue 18, p1-13. 13p.

Predmety: *OPTICAL properties, *EIGENVALUES, *MOLECULES

Existence of positive radial solutions for the elliptic equations with nonlinear gradient terms.

Autori: Li, Yongxiang¹ (AUTHOR) liyxnwnu@163.com

Zdroj: Positivity. Nov2025, Vol. 29 Issue 5, p1-22. 22p.

Predmety: ELLIPTIC equations, EIGENVALUES, NONLINEAR analysis, NONLINEAR differential equations

Computing Accurate Eigenvalues using a Mixed-Precision Jacobi Algorithm.

Autori: Higham, Nicholas J. Tisseur, Françoise Webb, Marcus a ďalší

Zdroj: SIAM Journal on Matrix Analysis & Applications. 2025, Vol. 46 Issue 4, p2423-2448. 26p.

Predmety: *EMPIRICAL research, *ALGORITHMS, EIGENVALUES, JACOBI method, MATRIX multiplications, NUMERICAL analysis, APPROXIMATION error

Randomized Implicitly Restarted Arnoldi Method for the Non-Symmetric Eigenvalue Problem.

Autori: de Damas, Jean-Guillaume Grigori, Laura

Zdroj: SIAM Journal on Matrix Analysis & Applications. 2025, Vol. 46 Issue 4, p2395-2422. 28p.

Predmety: *MONTE Carlo method, *ALGORITHMS, *MATHEMATICAL optimization, EIGENVALUES, NUMERICAL solutions for linear algebra, ORTHOGONALIZATION

Net laplacian spectra of signed wheel graph.

Autori: Tarisma, Tantri Rinurwati, Rinurwati Annisatul, Ririana a ďalší

Zdroj: AIP Conference Proceedings. 2025, Vol. 3372 Issue 1, p1-6. 6p.

Predmety: *EIGENVALUES, *LAPLACIAN matrices, *MATRICES (Mathematics), *MULTIPLICITY (Mathematics), *GRAPH theory

Spectrum and resolvent of the operator matrix associated to a system describing at most four quantum particles on a lattice.

Autori: Rasulov, Tulkin Dilmurodov, Elyor Latipov, Hakimboy

Zdroj: AIP Conference Proceedings. 2025, Vol. 3377 Issue 1, p1-7. 7p.

Predmety: *EIGENVALUES, *FOCK spaces, *OPERATOR functions, *LINEAR operators, *FREDHOLM operators, *PARTICLES (Nuclear physics), *FREQUENCY spectra

On eigen-аnd-аssociаted functions of а nonlocаl spectrаl problem for the hаrmonic equаtions.

Autori: Arzikulov, Abdikhalik¹ (AUTHOR) a.arziqulov@mail.ru

Zdroj: AIP Conference Proceedings. 2025, Vol. 3377 Issue 1, p1-5. 5p.

Predmety: *EIGENFUNCTIONS, *EIGENVALUES, *SPECTRAL theory, *INTEGRAL equations, *SOBOLEV spaces, *INTEGRALS, *HARMONIC functions

Determination of the critical and point spectrum of a model operator corresponding to a three-particle system on a lattice.

Autori: Rasulov, Tulkin Bahronov, Bekzod Tosheva, Nargiza

Zdroj: AIP Conference Proceedings. 2025, Vol. 3377 Issue 1, p1-6. 6p.

Predmety: *HUBBARD model, *EIGENVALUES, *HAMILTONIAN mechanics, *QUANTUM mechanics, *LATTICE models (Statistical physics), *FREQUENCY spectra, *MULTIBODY systems

Shturm-Liouville problem for an arbitrary combination of inhomogeneous boundary conditions of the first, second and third types.

Autori: Khujaev, Ismatulla Abdukarimov, Abdunabi Shamsutdinova, Nodira

Zdroj: AIP Conference Proceedings. 2025, Vol. 3377 Issue 1, p1-8. 8p.

Predmety: *EIGENVALUES, *EIGENFUNCTIONS, *PARTIAL differential equations, *ITERATIVE methods (Mathematics), *NUMERICAL analysis, *BOUNDARY value problems

A method for solving the complete eigenvalue problem for asymmetrical interval matrices and a convergence study.

Autori: Khamroeva, Dilafruz¹ (AUTHOR) hdilafruz_285@mail.ru

Zdroj: AIP Conference Proceedings. 2025, Vol. 3377 Issue 1, p1-11. 11p.

Predmety: *EIGENVALUES, *INTERVAL analysis, *MATRICES (Mathematics), *RESEARCH methodology, *BOUNDARY value problems, *EMPIRICAL research

Decoherence of Morse oscillator in the presence of dissipationless environment.

Autori: Mukherjee, Titir Acharya, Arnab Dattagupta, Sushanta

Zdroj: Journal of Chemical Physics; 11/21/2025, Vol. 163 Issue 19, p1-11, 11p

Predmety: DECOHERENCE (Quantum mechanics), BOUND states, ANHARMONIC oscillator, EIGENVALUES, MOLECULAR dynamics

Chemical reactivity from linear response eigenfunctions and eigenvalues.

Autori: Grincourt, Rémi Hoffmann, Guillaume Guégan, Frédéric a ďalší

Zdroj: Journal of Chemical Physics; 10/7/2025, Vol. 163 Issue 13, p1-14, 14p

Predmety: REACTIVITY (Chemistry), EIGENFUNCTIONS, EIGENVALUES, EIGENVECTORS, DEFORMATIONS (Mechanics)

Spectral Optimization of Torsional Eigenvalues for a Nonhomogeneous Fish-Bone Plate with Piers.

Autori: Berchio, Elvise Garrione, Maurizio Patriarca, Clara

Zdroj: Applied Mathematics & Optimization. Feb2026, Vol. 93 Issue 1, p1-28. 28p.

Predmety: EIGENVALUES, SPECTRAL theory, DENSITY, SUSPENSION bridges, COMPOSITE plates

On the second largest Laplacian eigenvalue of trees.

Autori: Chang, Haoran Lin, Hongying

Zdroj: RAIRO: Operations Research (2804-7303). 2025, Vol. 59 Issue 5, p3069-3077. 9p.

Predmety: *MATHEMATICS, TREES, EIGENVALUES, GRAPH theory, COMBINATORICS, LAPLACIAN operator, TREE graphs

A distance spectral radius for star-factors with large components in graphs.

Autori: Wang, Sufang Zhang, Wei

Zdroj: RAIRO: Operations Research (2804-7303). 2025, Vol. 59 Issue 4, p2213-2218. 6p.

Predmety: GRAPH connectivity, EIGENVALUES, INTEGERS

Conditions for k-factor-critical graphs.

Autori: Lv, Xiaoyun Chen, Hongzhang Li, Jianxi a ďalší

Zdroj: RAIRO: Operations Research (2804-7303). 2025, Vol. 59 Issue 4, p2241-2255. 15p.

Predmety: EIGENVALUES, INTEGERS

New localization theorems for the M-eigenvalues of a fourth-order partially symmetric tensor.

Autori: Xu, Yangyang Shao, Licai He, Guinan a ďalší

Zdroj: Journal of Industrial & Management Optimization. Aug2025, Vol. 21 Issue 8, p1-21. 21p.

Predmety: *EMPIRICAL research, LOCALIZATION theory, EIGENVALUES, TENSOR algebra, QUANTUM theory

ON THE MULTIPLICITY OF EIGENVALUES OF ONE SYMMETRICAL MATRIX OF THE 5TH ORDER.

Autori: Sahakyan, G. H.¹

Zdroj: German International Journal of Modern Science / Deutsche Internationale Zeitschrift für Zeitgenössische Wissenschaft. Sep2025, Issue 112, p17-22. 6p.

Predmety: *MATHEMATICS, EIGENVALUES, MATRICES (Mathematics), LINEAR algebra