Results 1 to 10 of about 7,484 (115)

Unconditionality in tensor products and ideals of polynomials, multilinear forms and operators [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2010
We study tensor norms that destroy unconditionality in the following sense: for every Banach space $E$ with unconditional basis, the $n$-fold tensor product of $E$ (with the corresponding tensor norm) does not have unconditional basis.
Carando, Daniel, Galicer, Daniel
core   +5 more sources

Optimal Hardy-Littlewood type inequalities for polynomials and multilinear operators [PDF]

open access: yesIsrael Journal of Mathematics, 2015
In this paper we obtain quite general and definitive forms for Hardy-Littlewood type inequalities. Moreover, when restricted to the original particular cases, our approach provides much simpler and straightforward proofs and we are able to show that in most cases the exponents involved are optimal.
Albuquerque, N.   +3 more
openaire   +3 more sources

Surveying the spirit of absolute summability on multilinear operators and homogeneous polynomials [PDF]

open access: yesRevista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2015
D. Pellegrino acknowledges with thanks the support of CNPq Grant 401735/2013-3-PVE (Linha 2)-Brazil. P. Rueda acknowledges with thanks the support of the Ministerio de Economia y Competitividad (Spain) MTM2011-22417. E. A. Sanchez Perez acknowledges with thanks the support of the Ministerio de Economia y Competitividad (Spain) MTM2012-36740-C02-02.
Pellegrino, Daniel   +2 more
openaire   +3 more sources

Bohnenblust-Hille inequalities: analytical and computational aspects

open access: yesAnais da Academia Brasileira de Ciências, 2018
The Bohnenblust-Hille polynomial and multilinear inequalities were proved in 1931 and the determination of exact values of their constants is still an open and challenging problem, pursued by various authors.
WASTHENNY V. CAVALCANTE   +1 more
doaj   +1 more source

Splitting of operations for alternative and Malcev structures [PDF]

open access: yes, 2015
In this paper we define pre-Malcev algebras and alternative quadri-algebras and prove that they generalize pre-Lie algebras and quadri-algebras respectively to the alternative setting.
Madariaga, Sara
core   +1 more source

An invariant subspace problem for multilinear operators on Banach spaces and algebras

open access: yesJournal of Inequalities and Applications, 2016
This paper is concerned with the study of invariant subspace problems for nonlinear operators on Banach spaces/algebras. Our study reveals that one faces unprecedented challenges such as lack of vector space structure and unbounded spectral sets when ...
John Emenyu
doaj   +1 more source

A Lindenstrauss theorem for some classes of multilinear mappings [PDF]

open access: yes, 2015
Under some natural hypotheses, we show that if a multilinear mapping belongs to some Banach multlinear ideal, then it can be approximated by multilinear mappings belonging to the same ideal whose Arens extensions simultaneously attain their norms.
Carando, D.   +2 more
core   +3 more sources

Interpolating Binary and Multivalued Logical Quantum Gates

open access: yesProceedings, 2017
A method for synthesizing quantum gates is presented based on interpolation methods applied to operators in Hilbert space. Starting from the diagonal forms of specific generating seed operators with non-degenerate eigenvalue spectrum one obtains for ...
Zeno Toffano, François Dubois
doaj   +1 more source

Quantum Query Complexity of Multilinear Identity Testing [PDF]

open access: yes, 2008
Motivated by the quantum algorithm in \cite{MN05} for testing commutativity of black-box groups, we study the following problem: Given a black-box finite ring $R=\angle{r_1,...,r_k}$ where $\{r_1,r_2,...,r_k\}$ is an additive generating set for $R$ and a
Arvind, V., Mukhopadhyay, Partha
core   +3 more sources

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