Search Results - "Invariant subspaces"

Cosine families, invariant subspaces, and boundary conditions for a class of diffusions on star graphs.

Authors: RATAJCZYK, ELŻBIETA¹ e.ratajczyk@pollub.pl

Source: Studia Mathematica. 2026, Vol. 289 Issue 1, p33-52. 20p.

On the Invariant Subspace Method for Nonlinear Second-Order Evolution Equations.

Authors: Badgaish, Manal Hmidouch, Lhoucine Hmidouch, Nacir

Source: Mathematics (2227-7390). Jun2026, Vol. 14 Issue 12, p2155. 14p.

Mirror Hom-Lie algebras in semi-Euclidean spaces.

Authors: Xiong, Zhen¹ (AUTHOR) xiongzhen1@jxga.edu.cn

Source: AIMS Mathematics. 2026, Vol. 11 Issue 6, p1-14. 14p.

Trace of multiplication operator restricted to invariant subspaces of some weighted Bergman space.

Authors: Yılmaz, Faruk¹ farukyilmaz@aybu.edu.tr

Source: Cumhuriyet Science Journal. 2026, Vol. 47 Issue 2, p361-365. 5p.

模型空间与单边移位算子不变子空间之间的关系.

Alternate Title: The relationship between model spaces and invariant subspaces of the unilateral shift operator.

Authors: 杨 晓 媛¹ yangxyxy@163.com

Source: Journal of Dalian University of Technology / Dalian Ligong Daxue Xuebao. Mar2026, Vol. 66 Issue 2, p216-220. 5p.

Invariant subspaces of compressions of the Hardy shift on some parametric spaces.

Authors: DAS, SUSMITA¹ susmita.das.puremath@gmail.com

Source: Studia Mathematica. 2026, Vol. 287 Issue 1, p21-55. 35p.

Multiple non-spherically symmetric solutions for a nonlinear Schrödinger equation.

Authors: Zhu, Hanqing Yang, Xianyong

Source: Boundary Value Problems. 2/4/2026, Vol. 2026 Issue 1, p1-9. 9p.

Local spectral properties on skew diagonal operator matrices.

Authors: Ko, Eungil Eun Lee, Ji Lee, Mee-Jung

Source: Linear & Multilinear Algebra. Jan2026, Vol. 74 Issue 2, p166-181. 16p.

A general fusion procedure for open spin chains: application to the ABJM spin chain.

Authors: Bai, Nan¹ (AUTHOR) bainan@mailbox.gxnu.edu.cn

Source: Journal of High Energy Physics. Jan2026, Vol. 2026 Issue 1, p1-41. 41p.

INVARIANT MODEL SPACES UNDER COMPOSITION OPERATORS: A COMPUTATIONAL APPROACH.

Authors: UNDRAKH, BATZORIG RENTSENDORJ, LKHAGVASUREN

Source: Journal of Mathematical Analysis. 2025, Vol. 16 Issue 6, p49-66. 18p.

Invariant subspace perturbations related to defective eigenvalues of Δ-Hermitian and Hamiltonian matrices.

Authors: Xu, Hongguo¹ (AUTHOR) feng@ku.edu

Source: Linear Algebra & its Applications. Jun2026, Vol. 738, p45-87. 43p.

Subjects: Invariant subspaces, Eigenvalues, Eigenvectors, Eigenfunctions, Perturbation theory, Hamiltonian systems

Geometric insight into linear augmented observers for uncertain systems.

Authors: Li, Junhui Gong, Beili

Source: ISA Transactions. May2026, Vol. 172, p211-220. 10p.

Subjects: Observability (Control theory), Invariant subspaces, Noise measurement, Uncertain systems, Estimation bias

Invariant Subspace Problem for Norm Attaining Operators.

Authors: Bakir, Aissa Nasli Ariouat, Ayyoub Fellag Benali, Abdelkader et al.

Source: European Journal of Pure & Applied Mathematics. Oct2025, Vol. 18 Issue 4, p1-10. 10p.

Asymptotic Dynamics in the Heisenberg Picture: Attractor Subspace and Choi-Effros Product.

Authors: Amato, Daniele Facchi, Paolo Konderak, Arturo

Source: Open Systems & Information Dynamics (OSID). Oct-Dec2025, Vol. 32 Issue 4, p1-24. 24p.

Positive answer to the invariant and hyperinvariant subspaces problems for hyponormal operators.

Authors: Liu, Junfeng Mecheri, Salah

Source: Georgian Mathematical Journal. Aug2025, Vol. 32 Issue 4, p633-637. 5p.

Trends in the study of stochastic dynamics.

Authors: Stoica, Codruţa¹ (AUTHOR) codruta.stoica@uav.ro

Source: AIP Conference Proceedings. 2026, Vol. 3489 Issue 1, p1-4. 4p.

The Natural Components of a Regular Linear System.

Authors: Beare, Brendan K. Howlett, Phil

Source: Oxford Bulletin of Economics & Statistics. Aug2026, Vol. 88 Issue 4, p603-622. 20p.

Spectral test of reducibility for matrix tuples.

Authors: Stessin, Michael Yang, Rongwei

Source: Linear Algebra & its Applications. Oct2026, Vol. 747, p254-273. 20p.

Subjects: Invariant subspaces, Matrices (Mathematics), Algebraic varieties

Fast and inverse-free algorithms for deflating subspaces.

Authors: Demmel, James Dumitriu, Ioana Schneider, Ryan

Source: Linear Algebra & its Applications. Apr2026, Vol. 735, p222-258. 37p.

Subjects: Matrix pencils, Invariant subspaces, Numerical solutions for linear algebra, Matrix functions, Numerical analysis

Pontrjagin空间上Putnam-Fuglede定理成立的条件.

Alternate Title: Conditions of Putnam-Fuglede theorem on the Pontrjagin spaces.

Authors: 李克华 叶洪波 王剑苹

Source: Journal of Xiamen University-Natural Science. Jul2025, Vol. 64 Issue 4, p723-726. 4p.