Results 71 to 80 of about 117,839 (222)

A crystal to rigged configuration bijection for nonexceptional affine algebras

open access: yes, 2002
Kerov, Kirillov, and Reshetikhin defined a bijection between highest weight vectors in the crystal graph of a tensor power of the vector representation, and combinatorial objects called rigged configurations, for type $A^{(1)}_n$.
Okado, Masato   +2 more
core   +3 more sources

Volume Quantization with Flexible Singularities for Hexahedral Meshing

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present a novel algorithm for quantization and subsequent hexahedral mesh generation from seamless volumetric maps. Quantization is the process of choosing integers that represent the numbers of hexahedral elements to be placed in each region of the volume, and transforming the seamless map into an integer‐grid map matching that choice ...
H. Brückler, M. Campen
wiley   +1 more source

Bijections for Dyck paths with colored hills [PDF]

open access: yesEnumerative Combinatorics and Applications, 2022
Kostas Manes, Ioannis Tasoulas
doaj   +1 more source

Dyck tilings, linear extensions, descents, and inversions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
Dyck tilings were introduced by Kenyon and Wilson in their study of double-dimer pairings. They are certain kinds of tilings of skew Young diagrams with ribbon tiles shaped like Dyck paths.
Jang Soo Kim   +3 more
doaj   +1 more source

Mesh Processing Non‐Meshes via Neural Displacement Fields

open access: yesComputer Graphics Forum, EarlyView.
Abstract Mesh processing pipelines are mature, but adapting them to newer non‐mesh surface representations—which enable fast rendering with compact file size—requires costly meshing or transmitting bulky meshes, negating their core benefits for streaming applications.
Yuta Noma   +4 more
wiley   +1 more source

Type C parking functions and a zeta map [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
We introduce type $C$ parking functions, encoded as vertically labelled lattice paths and endowed with a statistic dinv'. We define a bijection from type $C$ parking functions to regions of the Shi arrangement of type $C$, encoded as diagonally labelled ...
Robin Sulzgruber, Marko Thiel
doaj   +1 more source

Non-expansive bijections between unit balls of Banach spaces (A technical version with some boring proofs included)

open access: yes, 2018
It is known that if $M$ is a finite-dimensional Banach space, or a strictly convex space, or the space $\ell_1$, then every non-expansive bijection $F: B_M \to B_M$ is an isometry.
Zavarzina, Olesia
core   +1 more source

Hook and content bijections

open access: yesDiscrete Mathematics, 2013
AbstractWe provide a bijective proof of the identity ∑x∈λ(h(x)2−c(x)2)=|λ|2 where λ is an integer partition, h(x) is the hook number of the cell x∈λ, and c(x) is the content of x. A closely related identity is also proved bijectively.
openaire   +1 more source

DiskScissors: Cutting Arbitrary‐Topology Solids for Bijective Mapping

open access: yesComputer Graphics Forum, EarlyView.
Abstract An algorithm for cutting solid objects in a topology‐controlled manner is presented. Concretely, given a loop on the object boundary, a disk‐topology cut surface bounded by the loop is constructed in the interior. In contrast to various previous approaches, both disk topology and conformance to the prescribed loop are ensured by construction ...
S. Hinderink, M. Campen
wiley   +1 more source

Algebraic properties for some permutation statistics [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
In this article, we study some quotient sets on permutations built from peaks, valleys, double rises and double descents. One part is dedicated to the enumeration of the cosets using the bijection of Francon-Viennot which is a bijection between ...
Vincent Vong
doaj   +1 more source

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