Results 11 to 20 of about 5,387,064 (312)

Inverses and Determinants of n × n Block Matrices

open access: yesMathematics, 2023
Block matrices play an important role in all branches of pure and applied mathematics. In this paper, we study the two fundamental concepts: inverses and determinants of general n×n block matrices.
Müge Saadetoğlu, Şakir Mehmet Dinsev
doaj   +1 more source

The non-abelian tensor product of normal crossed submodules of groups [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
In this article, the notions of non-abelian tensor and exterior products of two normal crossed submodules of a given crossed module of groups are introduced and some of their basic properties are established.
Alireza Salemkar, Tahereh Fakhr Taha
doaj   +1 more source

On the partially symmetric rank of tensor products of $W$-states and other symmetric tensors [PDF]

open access: yesRendiconti Lincei - Matematica e Applicazioni, 2018
Given tensors $T$ and $T'$ of order $k$ and $k'$ respectively, the tensor product $T \otimes T'$ is a tensor of order $k+k'$. It was recently shown that the tensor rank can be strictly submultiplicative under this operation ([Christandl-Jensen-Zuiddam]).
E. Ballico   +3 more
semanticscholar   +1 more source

Tensor products for Gelfand–Shilov and Pilipović distribution spaces [PDF]

open access: yesThe Journal of Analysis, 2018
We show basic properties on tensor products for Gelfand–Shilov distributions and Pilipović distributions. This also includes the Fubini’s property of such tensor products. We also apply the Fubini property to deduce some properties for short-time Fourier
J. Toft
semanticscholar   +1 more source

Resolutions for twisted tensor products [PDF]

open access: yesPacific Journal of Mathematics, 2016
We build resolutions for general twisted tensor products of algebras. These bimodule and module resolutions unify many constructions in the literature and are suitable for computing Hochschild (co)homology and more generally Ext and Tor for (bi)modules ...
A. V. Shepler, S. Witherspoon
semanticscholar   +1 more source

Multiple operator integrals, Haagerup and Haagerup‐like tensor products, and operator ideals [PDF]

open access: yes, 2016
We study Schatten–von Neumann properties of multiple operator integrals with integrands in the Haagerup tensor product of L∞ spaces. We obtain sharp, best possible estimates.
A. Aleksandrov, V. Peller
semanticscholar   +1 more source

Singular Bilinear Integrals in Quantum Physics

open access: yesMathematics, 2015
Bilinear integrals of operator-valued functions with respect to spectral measures and integrals of scalar functions with respect to the product of two spectral measures arise in many problems in scattering theory and spectral analysis. Unfortunately, the
Brian Jefferies
doaj   +1 more source

On tensor products of CSS Codes [PDF]

open access: yesAnnales de l'Institut Henri Poincaré D, 2015
CSS codes are in one-to-one correspondance with length 3 chain complexes. The latter are naturally endowed with a tensor product $\otimes$ which induces a similar operation on the former. We investigate this operation, and in particular its behavior with
Benjamin Audoux, Alain Couvreur
semanticscholar   +1 more source

WOVEN FRAMES IN TENSOR PRODUCT OF HILBERT SPACES [PDF]

open access: yesJournal of Algebraic Systems, 2020
‎‎The tensor product is the fundemental ingredient for extending one-dimensional techniques of filtering and compression in signal preprocessing to higher dimensions‎.
S. Afshar Jahanshahi, A. Ahmadi
doaj   +1 more source

Linearization of Lipschitz-polynomial and Lipschitz-analytic mappings

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
We introduce and study Lipschitz-analytic and Lipcshitz-polynomial functions, analogues of tensor and symmetric tensor products of metric spaces.
M. V. Dubei, A. V. Zagorodnyuk
doaj   +1 more source

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