Results 11 to 20 of about 940 (106)

Plethysm and fast matrix multiplication [PDF]

open access: yes, 2018
Motivated by the symmetric version of matrix multiplication we study the plethysm $S^k(\mathfrak{sl}_n)$ of the adjoint representation $\mathfrak{sl}_n$ of the Lie group $SL_n$.
Seynnaeve, Tim
core   +3 more sources

Exponential type locally generalized strictly double diagonally tensors and eigenvalue localization

open access: yes, 2020
In this paper, we introduce exponential type locally generalized strictly double diagonally dominant tensors. This concept extends the concept of strictly diagonally dominant tensors.
J. Liu, L. Xiong
semanticscholar   +1 more source

Some inequalities for nonnegative tensors

open access: yesJournal of Inequalities and Applications, 2014
Let A be a nonnegative tensor and x=(xi)>0 its Perron vector. We give lower bounds for xtm−1/∑xi2⋯xim and upper bounds for xsm−1/∑xi2⋯xim, where xs=max1≤i≤nxi and xt=min1≤i≤nxi.MSC:15A18, 15A69, 65F15, 65F10.
Jun He, Tingzhu Huang, G. Cheng
semanticscholar   +2 more sources

Bounds for the Z-eigenpair of general nonnegative tensors

open access: yesOpen Mathematics, 2016
In this paper, we consider the Z-eigenpair of a tensor. A lower bound and an upper bound for the Z-spectral radius of a weakly symmetric nonnegative irreducible tensor are presented.
Liu Qilong, Li Yaotang
doaj   +1 more source

Introduction to Grassmann manifolds and quantum computation

open access: yesJournal of Applied Mathematics, Volume 2, Issue 8, Page 371-405, 2002., 2002
Geometrical aspects of quantum computing are reviewed elementarily for nonexperts and/or graduate students who are interested in both geometry and quantum computation. We show how to treat Grassmann manifolds which are very important examples of manifolds in mathematics and physics.
Kazuyuki Fujii
wiley   +1 more source

A binary encoding of spinors and applications

open access: yesComplex Manifolds, 2020
We present a binary code for spinors and Clifford multiplication using non-negative integers and their binary expressions, which can be easily implemented in computer programs for explicit calculations.
Arizmendi Gerardo, Herrera Rafael
doaj   +1 more source

α‐Derivations and their norm in projective tensor products of Γ‐Banach algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 21, Issue 2, Page 359-368, 1998., 1996
Let (V, Γ) and (V′, Γ′) be Gamma‐Banach algebras over the fields F1 and F2 isomorphic to a field F which possesses a real valued valuation, and (V, Γ)⊗p(V′, Γ′), their projective tensor product. It is shown that if D1 and D2 are α ‐ derivation and α′ ‐ derivation on (V, Γ) and (V′, Γ′) respectively and , is an arbitrary element of (V, Γ)⊗p(V′, Γ ...
T. K. Dutta, H. K. Nath, R. C. Kalita
wiley   +1 more source

A note on the three-way generalization of the Jordan canonical form

open access: yesOpen Mathematics, 2018
The limit point 𝓧 of an approximating rank-R sequence of a tensor Ƶ can be obtained by fitting a decomposition (S, T, U) ⋅ 𝓖 to Ƶ. The decomposition of the limit point 𝓧 = (S, T, U) ⋅ 𝓖 with 𝓖 = blockdiag(𝓖1, … , 𝓖m) can be seen as a three order ...
Cui Lu-Bin, Li Ming-Hui
doaj   +1 more source

A concise proof to the spectral and nuclear norm bounds through tensor partitions

open access: yesOpen Mathematics, 2019
On estimations of the lower and upper bounds for the spectral and nuclear norm of a tensor, Li established neat bounds for the two norms based on regular tensor partitions, and proposed a conjecture for the same bounds to be hold based on general tensor ...
Kong Xu
doaj   +1 more source

Bound for the largest singular value of nonnegative rectangular tensors

open access: yesOpen Mathematics, 2016
In this paper, we give a new bound for the largest singular value of nonnegative rectangular tensors when m = n, which is tighter than the bound provided by Yang and Yang in “Singular values of nonnegative rectangular tensors”, Front. Math.
He Jun   +4 more
doaj   +1 more source

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