Results 71 to 80 of about 157,651 (282)
Size multipartite Ramsey numbers for small paths versus books
Indonesian Journal of Combinatorics, 2016 Given $j \ge 2$, for graphs $G$ and $H$, the size Ramsey multipartite number $m_j(G, H)$ is defined as the smallest natural number $t$ such that any blue red coloring of the edges of the graph $K_{j \times t}$, necessarily containes a red $G$ or a ...
Chula J. Jayawardene +1 more
doaj
European Journal of Pragmatism and American Philosophy, 2022 One of Frank Ramsey’s crucial contributions to philosophy is his theory of belief. Ramsey deals with the notion of full belief in “Facts and Propositions,” as well as that of degrees of belief in “Truth and Probability.” In his posthumously published manuscript OnTruth, Ramsey analyses beliefs and emphasizes the essential role of agent’s actions in his
openaire +4 more sources
Friends or foes? Polyploidy and competition in a grassland geophyte
Oikos, EarlyView.Previous studies have suggested polyploids may possess a competitive advantage over diploids, due to their larger size, increased vigour or ability to better respond to abiotic stress. However, few studies have tested the effect of polyploidy on competitive ability directly, and only relatively recently has this oversight begun to be addressed. Here we
Damian Vaz de Sousa +3 more
wiley +1 more source
A Complexity Dichotomy in Spatial Reasoning via Ramsey Theory [PDF]
, 2020 Manuel Bodirsky, Bertalan Bodor
openalex +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long +7 more
wiley +1 more source
Amenability and Ramsey theory [PDF]
Fundamenta Mathematicae, 2013 18 pages. Section 6 was expanded to contain a generalization of the main results to automorphism groups of Fraisse structures.
openaire +2 more sources
Prisoners' Perceptions and Their Agency on Sustainability Transformation in Finland
Sustainable Development, EarlyView.ABSTRACT Sustainability transformation is essential for our time, requiring the involvement of all citizens. Several prisons worldwide have developed various sustainable development (SD) programs for prisoners. However, it remains unclear how prisoners perceive SD, which can be a significant obstacle to their agency. This study explores the perceptions
Sirpa M. Manninen, Teija Makkonen
wiley +1 more source
Around a conjecture of Erdos in graph Ramsey theory
پژوهشهای ریاضی, 2021 For given graphs G1 and G2 the Ramsey number R(G1;G2), is the smallest positive integer n such that each blue-red edge coloring of the complete graph Kn contains a blue copy of G1 or a red copy of G2. In 1983, Erd}os conjectured that there is an absolute
Leila Maherani, Gholamreza Omidi
doaj
Bipartite Ramsey numbers involving stars, stripes and trees
Electronic Journal of Graph Theory and Applications, 2013 The Ramsey number R(m, n) is the smallest integer p such that any blue-red colouring of the edges of the complete graph Kp forces the appearance of a blue Km or a red Kn.
Michalis Christou +2 more
doaj +1 more source
Density theorems for bipartite graphs and related Ramsey-type results
, 2007 In this paper, we present several density-type theorems which show how to find a copy of a sparse bipartite graph in a graph of positive density.
Fox, Jacob, Sudakov, Benny
core +4 more sources