Results 51 to 60 of about 167 (109)

Continued fractions using a Laguerre digraph interpretation of the Foata-Zeilberger bijection and its variants [PDF]

In the combinatorial theory of continued fractions, the Foata-Zeilberger bijection and its variants have been extensively used to derive various continued fractions enumerating several (sometimes infinitely many) simultaneous statistics on permutations ...
Deb, Bishal
core   +1 more source

On the asymptotics of the rescaled Appell polynomials [PDF]

, 2020
18 pags., 6 figs. -- MSC:41A60 30E15 05A15 11C08We introduce a new representation for the rescaled Appell polynomials and use it to obtain asymptotic expansions to arbitrary order.
Sánchez Villaseñor, Eduardo Jesús, Salas Martínez, Jesús, Barbero G., J. Fernando, Villaseñor, Eduardo J. S., Salas, Jesús, Barbero González, Jesús Fernando   +5 more
core   +1 more source

Chain enumeration, partition lattices and polynomials with only real roots [PDF]

, 2023
The coefficients of the chain polynomial of a finite poset enumerate chains in the poset by their number of elements. The chain polynomials of the partition lattices and their standard type \(B\) analogues are shown to have only real roots.
Kalampogia-Evangelinou, Katerina, Athanasiadis, Christos A., Athanasiadis, Christos A. ; Kalampogia-Evangelinou, Katerina, Christos A. Athanasiadis, Katerina Kalampogia-Evangelinou   +4 more
core   +1 more source

Sorting inversion sequences [PDF]

Discrete Mathematics & Theoretical Computer Science
We consider the avoidance of patterns in inversion sequences that relate sorting via sorting machines including data structures such as pop stacks and stacks.
Toufik Mansour, Howard Skogman, Rebecca Smith   +2 more
doaj   +1 more source

Обобщение на спускащите се полиноми

, 2022
[Raychev Angel; Райчев Ангел]2020 Mathematics Subject Classification ...
Raychev, Angel
core  

Alternating sign matrices with reflective symmetry and plane partitions: $n+3$ pairs of equivalent statistics and a Cauchy-type identity

Forum of Mathematics, Sigma
Vertically symmetric alternating sign matrices (VSASMs) of order $2n+1$ are known to be equinumerous with lozenge tilings of a hexagon with side lengths $2n+2,2n,2n+2,2n,2n+2,2n$ and a central triangular hole of size $2$ that exhibit
Ilse Fischer, Hans Höngesberg
doaj   +1 more source

Combinatorics of rectangulations: old and new bijections [PDF]

A rectangulation is a decomposition of a rectangle into finitely many rectangles. Via natural equivalence relations, rectangulations can be seen as combinatorial objects with a rich structure, with links to lattice congruences, flip graphs, polytopes ...
Felsner, Stefan, Cardinal, Jean, Fusy, Éric, Asinowski, Andrei   +3 more
core   +1 more source

Mathematics Subject Classification interrater agreement dataset

, 2022
The Mathematics Subject Classification organizes Publications, Software, and Research Data into a hierarchical classification scheme maintained by MathSciNet (mr) and zbMATH Open (zbmath). According to the classification scheme, both organizations mr and
Olaf Teschke, Mark-Christoph Müller, Moritz Schubotz   +2 more
core   +1 more source

An asymptotically tight lower bound for superpatterns with small alphabets [PDF]

, 2023
A permutation \(\sigma \in S_n\) is a \(k\)-superpattern (or \(k\)-universal) if it contains each \({\tau \in S_k}\) as a pattern. This notion of "superpatterns" can be generalized to words on smaller alphabets, and several questions about superpatterns ...
Hunter, Zach
core   +1 more source

Generalization of (Q,L)-Fuzzy Soft Subhemirings of a Hemiring

, 2022
This paper investigates the properties and results of (Q,L)-fuzzy soft subhemirings ((Q,L)-FSSHR) of a hemiring R. The motivation behind this study is to utilize the concept of L-fuzzy soft set of a hemiring and to derive a few specific outcomes on (Q, L)
N. Anitha, U. Fernandez-Gamiz, K. Geetha, K.M. Khedher, S. Noeiaghdam, S.S. Santra   +5 more
core   +1 more source