Výsledky vyhledávání - "Sanders, Jon"

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Autor: Sanders, Jon Henry

This paper is an excerpt from the author's 1968 PhD dissertation [Yale University, 1968] in which the (now) well-known result, commonly known as the Folkman-Rado-Sanders theorem, is proved. The proof uses (finite) alternating sums of integers and an

Externí odkaz: http://arxiv.org/abs/1712.03620

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Circuit Preserving Edge Maps II

Autor: Sanders, Jon Henry

Publikováno v: J. Combin. Theory Ser. B 42 (1987), 146-155

The results obtained in this paper grew from an attempt to generalize the main theorem of [1]. There it was shown that any circuit injection (a 1-1 onto edge map f such that if C is a circuit then f(C) is a circuit) from a 3-connected, not necessaril

Externí odkaz: http://arxiv.org/abs/1712.02891

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Dissertation/ Thesis

Disentangling the Coevolutionary Histories of Animal Gut Microbiomes

Autor: Sanders, Jon G.

Animals associate with microbes in complex interactions with profound fitness consequences. These interactions play an enormous role in the evolution of both partners, and recent advances in sequencing technology have allowed for unprecedented insigh

Externí odkaz: http://nrs.harvard.edu/urn-3:HUL.InstRepos:17463127

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Akademický článek

Early prediction of incident liver disease using conventional risk factors and gut-microbiome-augmented gradient boosting

Publikováno v: In Cell Metabolism 3 May 2022 34(5):719-730

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Circuit Preserving Edge Maps

Autor: Sanders, Jon Henry, Sanders, David

Publikováno v: Journal of Combinatorial Theory (B) 22, 91-96 (1977)

It is proved that any one-to-one edge map f from a 3-connected graph G onto a graph H, G and H possibly infinite, satisfying f(C) is a circuit in H whenever C is a circuit in G is induced by a vertex isomorphism. This generalizes a result of Whitney

Externí odkaz: http://arxiv.org/abs/1711.09341

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A Theorem on Matroid Homomorphism

Autor: Sanders, Jon Henry

This note generalizes a result contained in a previous paper [ J. Sanders, Circuit preserving edge maps II, J. Combin. Theory Ser. B 42 (1987), 146-155].
Comment: 5 pages, 0 figures

Externí odkaz: http://arxiv.org/abs/1711.08096

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