Results 1 to 10 of about 35,860 (197)

Fourier series of functions involving higher-order ordered Bell polynomials

open access: yesOpen Mathematics, 2017
In 1859, Cayley introduced the ordered Bell numbers which have been used in many problems in number theory and enumerative combinatorics. The ordered Bell polynomials were defined as a natural companion to the ordered Bell numbers (also known as the ...
Kim Taekyun   +3 more
doaj   +1 more source

Use of Enumerative Combinatorics for Proving the Applicability of an Asymptotic Stability Result on Discrete-Time SIS Epidemics in Complex Networks

open access: yesMathematics, 2018
In this paper, we justify by the use of Enumerative Combinatorics, the applicability of an asymptotic stability result on Discrete-Time Epidemics in Complex Networks, where the complex dynamics of an epidemic model to identify the nodes that contribute ...
Carlos Rodríguez Lucatero   +1 more
doaj   +1 more source

Bayer noise quasisymmetric functions and some combinatorial algebraic structures [PDF]

open access: yesCategories and General Algebraic Structures with Applications
Recently, quasisymmetric functions have been widely studied due to their big connection to enumerative combinatorics, combinatorial Hopf algebra and number theory.
Adnan Abdulwahid
doaj   +1 more source

Enumerative Combinatorics of Intervals in the Dyck Pattern Poset [PDF]

open access: yesOrder, 2021
AbstractWe initiate the study of the enumerative combinatorics of the intervals in the Dyck pattern poset. More specifically, we find some closed formulas to express the size of some specific intervals, as well as the number of their covering relations. In most of the cases, we are also able to refine our formulas by rank.
Bernini A.   +3 more
openaire   +5 more sources

Tangency quantum cohomology and characteristic numbers

open access: yesAnais da Academia Brasileira de Ciências, 2001
This work establishes a connection between gravitational quantum cohomology and enumerative geometry of rational curves (in a projective homogeneous variety) subject to conditions of infinitesimal nature like, for example, tangency.
JOACHIM KOCK
doaj   +1 more source

COMBINATORIAL ANALYSIS OF THE DOMINOES SCHEME AND THE CASE OF FIXED MINIMAL FIGURE ON A DOMINO TILE

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
The dominoes scheme is defined as a scheme of random tiling with poliomino tiles with $r$ ends and $n$ figures from 0 to $(n-1)$ on the ends of tiles of all possible compositions with repetitions, regardless of their order.
Natalia Enatskaya
doaj   +1 more source

An Extension of the Exponential Formula in Enumerative Combinatorics [PDF]

open access: yesThe Electronic Journal of Combinatorics, 1995
Let $\alpha$ be a formal variable and $F_w$ be a weighted species of structures (class of structures closed under weight-preserving isomorphisms) of the form ${F}_{w} = E({F}_{w}^{c})$, where $E$ and $F_w^c$ respectively denote the species of sets and of connected $F_w$-structures.
Gilbert Labelle, Pierre Leroux
openaire   +2 more sources

Computer Algebra in the Service of Enumerative Combinatorics [PDF]

open access: yesProceedings of the 2021 International Symposium on Symbolic and Algebraic Computation, 2021
Classifying lattice walks in restricted lattices is an important problem in enumerative combinatorics. Recently, computer algebra has been used to explore and to solve a number of difficult questions related to lattice walks. We give an overview of recent results on structural properties (e.g., algebraicity versus transcendence) and on explicit ...
openaire   +3 more sources

What Constitutes an Attractive Product‐as‐a‐Service Offer? Examining Consumer Preferences for (Circular) Business Patterns

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Little is known about consumer preferences for combinations of circular business model patterns, despite their potential to benefit the design of product services. This study examines consumer preferences for product‐as‐a‐service offers, combined with circular product attributes, across Sweden and the Netherlands.
Steven Sarasini   +5 more
wiley   +1 more source

Mixed Steiner Triple Systems With Shortest Length

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT A mixed Steiner triple system is a 3‐GDD which is viewed as a code with minimum Hamming distance 3. These codes are the minimum weight codewords of a 1‐perfect code over a mixed alphabet, when the related codes exist, and provide the connection between 3‐GDDs and coding theory.
Tuvi Etzion
wiley   +1 more source

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