Results 41 to 50 of about 1,223,570 (139)
Obstructions for Homomorphisms to Odd Cycles in Series‐Parallel Graphs
Journal of Graph Theory, EarlyView.ABSTRACT For a graph H $H$, an H $H$‐colouring of a graph G $G$ is a vertex mapping ϕ : V ( G ) → V ( H ) $\phi :V(G)\to V(H)$ such that adjacent vertices are mapped to adjacent vertices. A graph G $G$ is C 2 k + 1 ${C}_{2k+1}$‐critical if G $G$ has no C 2 k + 1 ${C}_{2k+1}$‐colouring but every proper subgraph of G $G$ has a C 2 k + 1 ${C}_{2k+1 ...
Eun‐Kyung Cho +3 more
wiley +1 more source
International Journal of Mathematical Combinatorics, Vol.4 [PDF]
, 2010 The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 460 pages approx.
Mao, Linfan (Editor-in-Chief)
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ICECA2023 - Yaakov Malinovsky - International Conference on Enumerative Combinatorics & Applications
, 2023 ICECA2023 , International Conference on Enumerative Combinatorics & Applications, September 4-6, 2023, Virtual, University of Haifa, Israelhttps://www.youtube.com/watch?v ...
Malinovsky, Yaakov, Alon, Noga
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On the Limits of Intransitive Coordination
Ratio, EarlyView.ABSTRACT A growing number of authors suggest that concept coordination—the kind of relation we pick out when we say that the concepts of one or more individuals represent something as the same—is not a transitive relation. Here we consider global features of representational systems to break new ground in the assessment of the intransitivity view. From
Víctor M. Verdejo, Joost J. Joosten
wiley +1 more source
On the automorphisms of the power semigroups of a numerical semigroup
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract If H$H$ is a numerical semigroup (i.e., a cofinite subset of the non‐negative integers closed under addition), then the collection of all non‐empty subsets of H$H$ forms a semigroup P(H)$\mathcal {P}(H)$ under the sumset operation induced by addition in H$H$.
Salvatore Tringali, Kerou Wen
wiley +1 more source
A spotlight on mathematics education in the Netherlands and the central role of Realistic Mathematics Education [PDF]
, 2020 In this introductory chapter I give a preview of the landscape of issues concerning mathematics education in the Netherlands and the role of Realistic Mathematics Education (RME) that one can come across in this volume, which contains the reflections of ...
Sub Mathematics Education +5 more
core +3 more sources
Linear Versus Centred Colouring via Pseudogrids
Journal of Graph Theory, Volume 113, Issue 3, Page 448-461, November 2026.ABSTRACT A centred colouring of a graph is a vertex colouring in which every connected subgraph contains a vertex whose colour is unique and a linear colouring is a vertex colouring in which every (not‐necessarily induced) path contains a vertex whose colour is unique.
Prosenjit Bose +4 more
wiley +1 more source
Digital technology in mathematics education: Why it works (or doesn't) [PDF]
, 2012 The integration of digital technology confronts teachers, educators and researchers with many questions. What is the potential of ICT for learning and teaching, and which factors are decisive in making it work in the mathematics classroom? To investigate
Drijvers, Paul +3 more
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Utterance evolution: the road to generative, combinatorial communicators
Biological Reviews, Volume 101, Issue 5, Page 2427-2447, October 2026.ABSTRACT Language has long been considered uniquely complex in the animal kingdom; however, animal research over the last decade has begun to challenge some long‐standing premises about exactly which language capacities are uniquely human. The task of resolving why and how complex communication systems evolve, particularly human language, has ...
Catherine Crockford +2 more
wiley +1 more source
Directive words of episturmian words: equivalences and normalization [PDF]
, 2008 Episturmian morphisms constitute a powerful tool to study episturmian words. Indeed, any episturmian word can be infinitely decomposed over the set of pure episturmian morphisms.
Amy Glen +8 more
core +1 more source