Results 81 to 90 of about 2,203 (125)

Pattern Avoidance in Weak Ascent Sequences [PDF]

Discrete Mathematics & Theoretical Computer Science
In this paper, we study pattern avoidance in weak ascent sequences, giving some results for patterns of length 3. This is an analogous study to one given by Duncan and Steingr\'imsson (2011) for ascent sequences. More precisely, we provide systematically
Beáta Bényi, Toufik Mansour, José L. Ramírez   +2 more
doaj   +1 more source

Interval and $\ell$-interval Rational Parking Functions [PDF]

Discrete Mathematics & Theoretical Computer Science
Interval parking functions are a generalization of parking functions in which cars have an interval preference for their parking. We generalize this definition to parking functions with $n$ cars and $m\geq n$ parking spots, which we call interval ...
Tomás Aguilar-Fraga, Jennifer Elder, Rebecca E. Garcia, Kimberly P. Hadaway, Pamela E. Harris, Kimberly J. Harry, Imhotep B. Hogan, Jakeyl Johnson, Jan Kretschmann, Kobe Lawson-Chavanu, J. Carlos Martínez Mori, Casandra D. Monroe, Daniel Quiñonez, Dirk Tolson III, Dwight Anderson Williams II   +14 more
doaj   +1 more source

Weighted cylindric partitions. [PDF]

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

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

Enumeration of coalescent histories for caterpillar species trees and p-pseudocaterpillar gene trees. [PDF]

Adv Appl Math, 2021
Alimpiev E, Rosenberg NA.
europepmc   +1 more source

Finite automata, probabilistic method, and occurrence enumeration of a pattern in words and permutations. [PDF]

SIAM J Discret Math, 2020
Mansour T, Rastegar R, Roitershtein A.
europepmc   +1 more source

Compositions of n as alternating sequences of weakly increasing and strictly decreasing partitions

Open Mathematics, 2012
Blecher Aubrey, Brennan Charlotte, Mansour Toufik   +2 more
doaj   +1 more source

Two explicit formulas for the generalized Motzkin numbers. [PDF]

J Inequal Appl, 2017
Zhao JL, Qi F.
europepmc   +1 more source

Counting and sampling gene family evolutionary histories in the duplication-loss and duplication-loss-transfer models. [PDF]

J Math Biol, 2020
Chauve C, Ponty Y, Wallner M.
europepmc   +1 more source

A note on [Formula: see text]-Bernstein polynomials and their applications based on [Formula: see text]-calculus. [PDF]

J Inequal Appl, 2018
Agyuz E, Acikgoz M.
europepmc   +1 more source