Results 11 to 20 of about 4,223,867 (200)

Vector inequalities for powers of some operators in Hilbert spaces [PDF]

open access: yes, 2008
Vector inequalities for powers of some operators in Hilbert spaces with applications for operator norm, numerical radius, commutators and self-commutators are ...
Dragomir, Sever S, S.S. Dragomir
core   +7 more sources

Ternary structures in Hilbert spaces [PDF]

open access: yes, 2011
PhDTernary structures in Hilbert spaces arose in the study of in nite dimensional manifolds in di erential geometry. In this thesis, we develop a structure theory of Hilbert ternary algebras and Jordan Hilbert triples which are Hilbert spaces equipped
Bahmani, Fatemeh
core   +4 more sources

Some Refinements of Hilbert-Pachpatte type integral Inequalities [PDF]

open access: yes, 2001
In this paper, we obtain an extension of a multivariable integral inequality of Hilbert-Pachpatte type. By specializing the upper estimate functions in the hypothesis and the parameters, we obtain many special ...
Kim, Young-Ho, Dragomir, Sever S
core   +6 more sources

Hilbert series for ALP EFTs

open access: yesJournal of High Energy Physics, 2023
Axions and axion-like particles (ALPs) are ubiquitous in popular attempts to solve supercalifragilisticexpialidocious puzzles of Nature. A widespread and vivid experimental programme spanning a vast range of mass scales and decades of couplings strives ...
Christophe Grojean   +2 more
doaj   +1 more source

A polynomial expression for the Hilbert series of the quotient ring of diagonal coinvariants (condensed version) [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
A special case of Haiman's identity [Invent. Math. 149 (2002), pp. 371–407] for the character of the quotient ring of diagonal coinvariants under the diagonal action of the symmetric group yields a formula for the bigraded Hilbert series as a sum of ...
J. Haglund
doaj   +1 more source

Hierarchical Zonotopal Power Ideals [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
Zonotopal algebra deals with ideals and vector spaces of polynomials that are related to several combinatorial and geometric structures defined by a finite sequence of vectors.
Matthias Lenz
doaj   +1 more source

Hilbert series of parallelogram polyominoes

open access: yesResearch in the Mathematical Sciences, 2022
AbstractWe present a conjecture about the reduced Hilbert series of the coordinate ring of a simple polyomino in terms of particular arrangements of non-attacking rooks that can be placed on the polyomino. By using a computational approach, we prove that the above conjecture holds for all simple polyominoes up to rank 11. In addition, we prove that the
Ayesha Asloob Qureshi   +2 more
openaire   +6 more sources

On a New Weighted Hilbert Inequality

open access: yesJournal of Inequalities and Applications, 2008
It is shown that a weighted Hilbert inequality for double series can be established by introducing a proper weight function. Thus, a quite sharp result of the classical Hilbert inequality for double series is obtained.
Gao Mingzhe, Gao Xuemei, He Leping
doaj   +2 more sources

Combinatorial Formula for the Hilbert Series of bigraded $S_n$-modules [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
We introduce a combinatorial way of calculating the Hilbert series of bigraded $S_n$-modules as a weighted sum over standard Young tableaux in the hook shape case.
Meesue Yoo
doaj   +1 more source

Norm and Numerical Radius Inequalities for Two Linear Operators in Hilbert Spaces [PDF]

open access: yes, 2008
Some inequalities for the norm and numerical radius of two bounded linear operators in Hilbert spaces are ...
Dragomir, Sever S
core   +5 more sources

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