Results 61 to 70 of about 495,855 (310)
Advanced results in enumeration of hyperfields
AIMS Mathematics, 2020 The purpose of this paper is to introducing a computational method to construction and classification of finite hyperfields (in the sense of Krasner). In this regards first we introduce a mathematical method to produce hyperfields from a family of a non ...
R. Ameri, M. Eyvazi, S. Hoskova-Mayerova
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Unlabeled $(2+2)$-free posets, ascent sequences and pattern avoiding permutations [PDF]
Discrete Mathematics & Theoretical Computer Science, 2009 We present statistic-preserving bijections between four classes of combinatorial objects. Two of them, the class of unlabeled $(\textrm{2+2})$-free posets and a certain class of chord diagrams (or involutions), already appeared in the literature, but ...
Mireille Bousquet-Mélou +3 more
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Effects of chronic browsing on life‐history traits of an irruptive large herbivore population
Population Ecology, EarlyView.This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji +9 more
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Enumeration of the distinct shuffles of permutations [PDF]
Discrete Mathematics & Theoretical Computer Science, 2009 A shuffle of two words is a word obtained by concatenating the two original words in either order and then sliding any letters from the second word back past letters of the first word, in such a way that the letters of each original word remain spelled ...
Camillia Smith Barnes
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Foods, 2022 Probiotics are universally recognized for their health benefits, despite the fact that their effects depend on the strain. Identification and enumeration of probiotic strains are required prior to evaluating their effectiveness.
Lei Zhao +9 more
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Population Ecology, EarlyView.This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier +6 more
wiley +1 more source
A simple recurrence formula for the number of rooted maps on surfaces by edges and genus [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 We establish a simple recurrence formula for the number $Q_g^n$ of rooted orientable maps counted by edges and genus. The formula is a consequence of the KP equation for the generating function of bipartite maps, coupled with a Tutte equation, and it was
Sean Carrell, Guillaume Chapuy
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Image Analysis Semi-Automatic System for Colony-Forming-Unit Counting
Bioengineering, 2022 Background: Accurate quantitative analysis of microorganisms is recognized as an essential tool for gauging safety and quality in microbiology settings in a wide range of fields.
Pedro Miguel Rodrigues +2 more
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Sublinear-Space Bounded-Delay Enumeration for Massive Network Analytics: Maximal Cliques
International Colloquium on Automata, Languages and Programming, 2016 Due to the sheer size of real-world networks, delay and space become quite relevant measures for the cost of enumeration in network analytics. This paper presents efficient algorithms for listing maximum cliques in networks, providing the first sublinear-
A. Conte +3 more
semanticscholar +1 more source
Enumeration of simple random walks and tridiagonal matrices
, 2002 We present some old and new results in the enumeration of random walks in one dimension, mostly developed in works of enumerative combinatorics. The relation between the trace of the $n$-th power of a tridiagonal matrix and the enumeration of weighted ...
Bauer M +23 more
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