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Extremal Results in and out of Additive Combinatorics

2020
In this thesis, we study several related topics in extremal combinatorics, all tied together by various themes from additive combinatorics and combinatorial geometry. First, we discuss some extremal problems where local properties are used to derive global properties.
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Applications of Continuous Combinatorics to Quasirandomness and Extremal Combinatorics

2021
The theory of limits of dense combinatorial objects studies the asymptotic behavior of densities of small templates in an increasing sequence of combinatorial objects. The inaugural limit theory of graphons captures limits of graph sequences in a semantic limit object that can be thought of as a fractional version of an adjacency matrix. Since graphons
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Problems in Discrete Geometry and Extremal Combinatorics

2016
We study several problems in discrete geometry and extremal combinatorics. Discrete geometry studies the combinatorial properties of finite sets of simple geometric objects. One theme of the field is geometric Ramsey theory. Given m geometric objects, we want to select a not too small subset forming a configuration that is “regular” in some sense.
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Extremal Combinatorics in Geometry and Graph Theory

open access: closed, 2013
We study a problem in extremal geometry posed by Paul Erdos and George Szekeres in 1935. This problem is to find the smallest positive integer N(n) such that every point set in general position (no three on a line) of N(n) points contains the vertex set of a convex n-gon.
Jonathan E. Beagley
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Representation theory methods in extremal combinatorics

2016
The research of this thesis lies in the area of extremal combinatorics. The word "extremal" comes from the kind of problems that are studied in this field. In fact, if a collection of finite objects (numbers, subsets, subspaces, graphs, etc.) satisfies some restrictions then the following questions are of interest from the perspective of extremal ...
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Tilting theory and cluster combinatorics

Advances in Mathematics, 2006
Aslak Bakke Buan   +2 more
exaly  

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