Results 121 to 130 of about 221,378 (266)
Graphs with 4-Rainbow Index 3 and n − 1
Let G be a nontrivial connected graph with an edge-coloring c : E(G) → {1, 2, . . . , q}, q ∈ ℕ, where adjacent edges may be colored the same. A tree T in G is called a rainbow tree if no two edges of T receive the same color. For a vertex set S ⊆ V (G),
Li Xueliang+3 more
doaj +1 more source
Algebraic and geometric methods in enumerative combinatorics [PDF]
A survey written for the upcoming "Handbook of Enumerative Combinatorics".
arxiv
A Bayesian Proof of the Spread Lemma
ABSTRACT A key set‐theoretic “spread” lemma has been central to two recent celebrated results in combinatorics: the recent improvements on the sunflower conjecture by Alweiss, Lovett, Wu, and Zhang; and the proof of the fractional Kahn–Kalai conjecture by Frankston, Kahn, Narayanan, and Park.
Elchanan Mossel+3 more
wiley +1 more source
The combinatorics of splittability
Small ...
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Journal of Mathematical Analysis and Applications ; 160 ; 2 ; 500 ...
S.K. Tan+3 more
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Combinatorics of Chord Progressions [PDF]
Color poster with text and diagrams.This study explored an overlap between combinatorics and music. The goal was to show chord progressions that are common to a specific collection of music, composer, or era.University of Wisconsin--Eau Claire Office of
Kiefer, Peter
core +1 more source
The many faces of modern combinatorics [PDF]
This is a survey of recent developments in combinatorics. The goal is to give a big picture of its many interactions with other areas of mathematics, such as: group theory, representation theory, commutative algebra, geometry (including algebraic geometry), topology, probability theory, and theoretical computer science.
arxiv
Combinatorics of Type D Exceptional Sequences [PDF]
Exceptional sequences are important sequences of quiver representations in the study of representation theory of algebras. They are also closely related to the theory of cluster algebras and the combinatorics of Coxeter groups. We combinatorially classify exceptional sequences of a family of type D Dynkin quivers, and we show how our model for ...
arxiv
A Jump of the Saturation Number in Random Graphs?
ABSTRACT For graphs G$$ G $$ and F$$ F $$, the saturation number sat(G,F)$$ sat\left(G,F\right) $$ is the minimum number of edges in an inclusion‐maximal F$$ F $$‐free subgraph of G$$ G $$. In 2017, Korándi and Sudakov initiated the study of saturation in random graphs. They showed that for constant p∈(0,1)$$ p\in \left(0,1\right) $$, whp satG(n,p),Ks=(
Sahar Diskin+2 more
wiley +1 more source
AbstractDaniel Kleitman's many research contributions are surveyed, with emphasis on extremal hypergraph theory, asymptotic enumeration, and discrete geometry.
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