Results 101 to 110 of about 219 (161)
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
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
Parity-alternating permutations and successions
Open Mathematics, 2014 Munagi Augustine
doaj +1 more source
The inner site-perimeter of compositions
, 2020 Compositions of n are finite sequences of positive integers (σi)ki=1 such that σ1 + σ2 + , , , + σk = n.The σ's are called parts.
Brennan, Charlotte +2 more
core
Two explicit formulas for the generalized Motzkin numbers. [PDF]
J Inequal Appl, 2017 Zhao JL, Qi F.
europepmc +1 more source
Some zero-sum constants with weights
, 2008 . For an abelian group G, the Davenport constant D(G) is defined to be the smallest natural number k such that any sequence of k elements in G has a non-empty subsequence whose sum is zero (the identity element).
S. D. Adhikari +2 more
core
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
Combinatorics Of RNA Secondary Structures
, 1996 Secondary structures of polynucleotides can be view as a certain class of planar vertex-labeled graphs. We construct recursion formulae enumerating various sub-classes of these graphs as well as certain structural elements (sub-graphs).
Ivo L. Hofacker +2 more
core
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