Results 1 to 10 of about 166,239,348 (277)

Lattices of paths: Representation theory and valuations [PDF]

open access: yesElectronic Journal of Combinatorics, 2011
We study some distributive lattices arising in the combinatorics of lattice paths. In particular, for the Dyck, Motzkin and Schroder lattices we describe the spectrum and we determine explicitly the Euler characteristic in terms of natural parameters of lattice paths.
Luca Ferrari, Emanuele Munarini
exaly   +6 more sources

Revealing hidden periodicity in momentum-encoded metasurfaces [PDF]

open access: yesNature Communications
Structured planar materials known as metasurfaces enable versatile manipulation of electromagnetic waves at subwavelength scales. Especially, metasurfaces can serve as spatial sampling lattices that encode prescribed in-plane momentum profiles, as ...
Seokwoo Kim   +9 more
doaj   +2 more sources

On lattices from combinatorial game theory modularity and a representation theorem: Finite case

open access: yesTheoretical Computer Science, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Catia Dias   +2 more
exaly   +5 more sources

How can representation theories of inverse semigroups and lattices be united?

open access: yesSemigroup Forum, 1996
Let \(X\) be a set and \(\text{Rel}(X)\) the set of all binary relations on \(X\). For \(R\in\text{Rel}(X)\), let us put \(\text{Dom} (R)=\{x\mid \exists y:(x,y)\in R\}\) and define three operations \(\circ\), \({}^{-1}\) and \({\mathcal P}\) on \(X\) by: \(R\circ H= \{(x,y)\mid \exists z:(x,z)\in R\), \((z,y)\in H\}\), \(R^{-1}= \{(x,y)\mid (y,x)\in R\
exaly   +3 more sources

Inverse spectral problem for Jacobi operators and Miura transformation

open access: yesConcrete Operators, 2021
We study a Miura-type transformation between Kac - van Moerbeke (Volterra) and Toda lattices in terms of the inverse spectral problem for Jacobi operators, which appear in the Lax representation for such systems.
Osipov Andrey
doaj   +1 more source

Partial categorification of Hopf algebras and representation theory of towers of \mathcalJ-trivial monoids [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
This paper considers the representation theory of towers of algebras of $\mathcal{J} -trivial$ monoids. Using a very general lemma on induction, we derive a combinatorial description of the algebra and coalgebra structure on the Grothendieck rings $G_0 ...
Aladin Virmaux
doaj   +1 more source

Representation Theory of Lattice Current Algebras [PDF]

open access: yesCommunications in Mathematical Physics, 1998
35 pages, LaTeX file, the revised version of the paper, to be published in Commun. Math. Phys.
Alekseev, Anton Y.   +3 more
openaire   +3 more sources

Geometric algebra and algebraic geometry of loop and Potts models

open access: yesJournal of High Energy Physics, 2022
We uncover a connection between two seemingly separate subjects in integrable models: the representation theory of the affine Temperley-Lieb algebra, and the algebraic structure of solutions to the Bethe equations of the XXZ spin chain.
Janko Böhm   +3 more
doaj   +1 more source

Conformal field theories, representations and lattice constructions [PDF]

open access: yesCommunications in Mathematical Physics, 1996
An account is given of the structure and representations of chiral bosonic meromorphic conformal field theories (CFT's), and, in particular, the conditions under which such a CFT may be extended by a representation to form a new theory. This general approach is illustrated by considering the untwisted and $Z_2$-twisted theories, $H(Λ)$ and $\tilde H(Λ)$
Dolan, L., Goddard, P., Montague, P.
openaire   +3 more sources

Home - About - Disclaimer - Privacy