Results 91 to 100 of about 157,651 (282)
Temporal Ramsey Graphs: The Ramsey Kinematic Approach to the Motion of Systems of Material Points
DynamicsThe Ramsey approach is applied to analyses of the kinematics of systems built of non-relativistic, motile point masses/particles. This approach is based on colored graph theory. Point masses/particles serve as the vertices of the graph.
Edward Bormashenko
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Ramsey-Theory and Forcing Extensions [PDF]
Proceedings of the American Mathematical Society, 1994 In every forcing extension of every model of set theory by a nontrivial (set) forcing there exist a graph Y and a cardinal μ \mu , such that every graph has an edge coloring with μ \mu . colors with no monochromatic induced copy of Y.
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Productivity Growth from Genetic Improvement: Evidence from Illinois Soybean Trial Data
American Journal of Agricultural Economics, EarlyView.Abstract In 2023, the United States produced 28% of the world's soybeans, making understanding yield trends in the United States important for understanding global price trends. We estimate yield growth due to genetic change in soybeans using Illinois variety trial data with a modified approach.
Jared P. Hutchins, Scott H. Irwin
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Riemannian Manifolds, Closed Geodesic Lines, Topology and Ramsey Theory
MathematicsWe applied the Ramsey analysis to the sets of points belonging to Riemannian manifolds. The points are connected with two kinds of lines: geodesic and non-geodesic.
Edward Bormashenko
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Modeling of Complex Systems by Means of Partial Algebras
Mendel, 2019 Complex systems are very hard to describe by some unified language and calculus. In cases when their nature is very heterogeneous is possible to use with advantage state description.
Jiri Bila +2 more
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Field‐level crop choice responses to weather‐induced yield shocks in the US Corn Belt
American Journal of Agricultural Economics, EarlyView.Abstract As climate change increases the frequency and severity of extreme heat events, farmers are expected to face greater variability in crop yields. Using 10 million field‐level observations, this study examines how farmers in the US Corn Belt adjust corn–soybean rotation decisions in response to yield shocks largely driven by weather fluctuations.
Seunghyun Lee
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The weak Ramsey property and extreme amenability
Forum of Mathematics, SigmaWe extend the Kechris–Pestov–Todorčević correspondence to weak Fraïssé categories and automorphism groups of generic objects. The new ingredient is the weak Ramsey property.
Adam Bartoš +3 more
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Archaeometry, EarlyView.Abstract This paper explores the relationship between wetland ecosystems and prehistoric lakeshore settlements within the Lake Ohrid basin (a biodiversity hotspot) by considering plant food systems at Ploča Mičov Grad, North Macedonia. The mid‐fifth millennium (c.4555–4373 to 4437–4241 cal BCE) waterlogged assemblage contained a diverse spectrum of ...
Amy Holguin +14 more
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Archaeometry, EarlyView.Abstract Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in ...
Ross Salerno +9 more
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Discrete & Computational Geometry, 1996 Let \((K_n, E_n)\) be a sequence of graphs in Euclidean spaces \(\mathbb{R}^n\). It is said to be edge-Ramsey if, for all \(r\geq 1\), a positive integer \(n= n(K, E, r)\) exists so that if \(m\geq n\), for any \(r\)-coloring of the edges of \(\mathbb{R}^m\), there is a graph \((L, F)\) in \(\mathbb{R}^m\) which is geometrically congruent to \((K_m ...
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