Results 81 to 90 of about 219 (161)

Asymptotic study of electrorheological fluid in thin domain with variable power-law and Tresca boundary condition

Demonstratio Mathematica
This article investigates the stationary behavior of an incompressible non-Newtonian fluid flowing through a thin three-dimensional domain Qξ⊂R3 ${Q}^{\xi }\subset {\mathbb{R}}^{3}$ , where the viscosity follows a variable power-law model.
Amara Kaddouri, Dilmi Mohamed, Dilmi Mourad, Boulaaras Salah, Benseridi Hamid   +4 more
doaj   +1 more source

Two-sided permutation statistics via symmetric functions

Forum of Mathematics, Sigma
Given a permutation statistic $\operatorname {\mathrm {st}}$ , define its inverse statistic $\operatorname {\mathrm {ist}}$ by . We give a general approach, based on the theory of symmetric functions, for finding the joint distribution of
Ira M. Gessel, Yan Zhuang
doaj   +1 more source

On the critical exponents of generalized ballot sequences in three dimensions and large tandem walks. [PDF]

Aequ Math, 2022
Wallner M.
europepmc   +1 more source

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  

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  

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

Some enumerative properties of parking functions

A parking function is a sequence \((\pi_1,\dots, \pi_n)\) of positive integers such that if \(\lambda_1\leq\cdots\leq \lambda_n\) is the increasing rearrangement of \(\pi_1,\dots,\pi_n\), then \(\lambda_i\leq i\) for \(1\leq i\leq n\).
Stanley, Richard P, Yin, Mei
core   +2 more sources

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  

Weighted cylindric partitions. [PDF]

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