Results 91 to 100 of about 225 (160)

Computational validations of the asymptotic matching conjectures

, 2005
We describe several computational validations of the asymptotic matching conjectures for r-regular bipartite graphs. These validations are based on algorithms for computation of d-dimensional monomerdimer entropies in statistical mechanics and asymptotic
S Friedland, E Krop, K Markström, P H Lundow   +3 more
core  

The slice decomposition of planar hypermaps

Forum of Mathematics, Sigma
The slice decomposition is a bijective method for enumerating planar maps (graphs embedded in the sphere) with control over face degrees. In this paper, we extend the slice decomposition to the richer setting of hypermaps, naturally interpreted as ...
Marie Albenque, Jérémie Bouttier
doaj   +1 more source

Subspace profiles over finite fields and q-Whittaker expansions of symmetric functions

Forum of Mathematics, Sigma
Bender, Coley, Robbins, and Rumsey posed the problem of counting the number of subspaces which have a given profile with respect to a linear endomorphism defined on a finite vector space.
Samrith Ram
doaj   +1 more source

On the sum relation of multiple Hurwitz zeta functions

, 2019
In this paper we shall define the special-valued multiple Hurwitz zeta functions, namely the multiple t-values t(α) and define similarly the multiple star t-values as t⋆(α). Then we consider the sum of all such multiple (star) t-values of fixed depth and
Chung, Chan-Liang
core  

Existence Results for a Class of Semilinear Elliptic Systems

, 2020
. In this paper, we study the existence of nontrivial solutions for the problem where Ω is bounded domain in R N and h 1 ,h 2 ∈ L 2 (Ω). The existence result is obtained by using the Leray-Schauder degree under the following condition on the ...
Moussaoui Abdelkrim, Khodja Brahim
core  

On the validations of the asymptotic matching conjectures

, 2020
In this paper we review the asymptotic matching conjectures for rregular bipartite graphs, and their connections in estimating the monomerdimer entropies in d-dimensional integer lattice and Bethe lattices.
S Friedland, E Krop, K Markström, P H Lundow   +3 more
core  

Weighted cylindric partitions. [PDF]

J Algebr Comb (Dordr), 2022
Bridges W, Uncu AK.
europepmc   +1 more source

Some theorems on the q-analogue of the generalized stirling numbers

, 2011
In this paper, we establish more properties for the q-analogue of the unied generalization of Stirling numbers including the vertical and horizontal recurrence relations, and the rational generating function.
Husna Zayadi
core  

Three enumeration formulas of standard young tableaux of truncated shapes

, 2019
In this paper we consider the enumeration of three kinds of standard Young tableaux (SYT) of truncated shapes by use of the method of multiple integrals.
Sun, Ping
core  

Labeling regions in deformations of graphical arrangements

Combining Carver's variant of the Farkas' lemma with the Flow Decomposition Theorem we show that the regions of any deformation of a graphical arrangement may be bijectively labeled with a set of weighted digraphs containing directed cycles of negative ...
Hetyei, Gábor
core   +1 more source