An Architecture for Combinator Graph Reduction

An Introduction to Algebraic Combinatorics by Darij Grinberg

This note describes the following topics: generating functions, Integer partitions and q binomial coefficients, Permutations, Alternating sums, signed counting and determinants.

Author(s): Darij Grinberg

692 Pages

Combinatorics Lecture Notes by Stephan Wagner

This note describes Elementary enumeration principles, Properties of binomial coefficients, combinatorial identities, The principle of inclusion and exclusion, Enumeration by means of recursions, The pigeon hole principle, Potential functions and invariants, Some concepts in graph theory and various.

Author(s): Stephan Wagner

69 Pages

Introduction to Combinatorics by Mark Wildon

This book describes the following topics: The Derangements Problem, Binomial coefficients, Principle of Inclusion and Exclusion, Rook Polynomials, Recurrences and asymptotics, Convolutions and the Catalan Numbers, Exponential generating functions, Ramsey Theory, Lovasz Local Lemma.

Author(s): Mark Wildon

146 Pages

Combinatorics of Centers by Sebastian Konig

This PDF book Combinatorics of Centers of 0-Hecke Algebrasin Type A covers the following topics related to Combinatorics : Introduction, Preliminaries, Coxeter groups, The symmetric group, Combinatorics, enters of 0-Hecke algebras, Elements in stair form, Equivalence classes, etc.

Author(s): Sebastian Konig

59 Pages

Combinatorics by Michael Tait

This PDF covers the following topics related to Combinatorics : Introduction, Enumeration, Sequences and the Multiplication Principle, Permutations and Combinations, Bijections and Double Counting, Estimation, Inclusion-Exclusion, Generating Functions, Formal Power Series, Generating Functions Redux, Change making, Compositions, Counting Subsets, Counting Strings, The Probabilistic Method, Preliminaries, The first moment method, Linearity of expectation, Alterations, Markov and Chebyshev, Chernoff Bound, Lov´asz Local Lemma, Extremal Graph Theory, Tur´an’s Theorem, Projective planes, Sidon sets, Constructing C4-free graphs, Ramsey numbers, Combinatorial Number Theory, Erd os-Ko-Rado Theorem, Spectral graph theory, Linear Algebra Preliminaries, The adjacency matrix, Short proofs of old results using spectral graph theory, The Graham-Pollak Theorem, The Expander-Mixing Lemma, The Hoffman-Singleton Theorem.

Author(s): Michael Tait, Carnegie Mellon University

103 Pages

Combinatorics The Art of Counting, Bruce E. Sagan

The contents of this book include: Basic Counting, Counting with Signs, Counting with Ordinary Generating Functions, Counting with Exponential Generating Functions, Counting with Partially Ordered Sets, Counting with Group Actions, Counting with Symmetric Functions, Counting with Quasisymmetric Functions, Introduction to Representation Theory.

Author(s): Bruce E. Sagan

325 Pages

Algebraic Combinatorics Lecture Notes

This book explains the following topics: Diagram Algebras and Hopf Algebras, Group Representations, Sn-Representations Intro, Decomposition and Specht Modules, Fundamental Specht Module Properties and Branching Rules, Representation Ring for Sn and its Pieri Formula, Pieri for Schurs, Kostka Numbers, Dual Bases, Cauchy Identity, Finishing Cauchy, Littlewood-Richardson Rule, Frobenius Characteristic Map, Algebras and Coalgebras, Skew Schur Functions and Comultiplication, Sweedler Notation, k-Coalgebra Homomorphisms, Subcoalgebras, Coideals, Bialgebras, Bialgebra Examples, Hopf Algebras Defined, Properties of Antipodes and Takeuchi’s Formula, etc.

Author(s): Sara Billey, Josh Swanson

101 Pages

Lecture Notes Combinatorics

This lecture note covers the following topics: What is Combinatorics, Permutations and Combinations, Inclusion-Exclusion-Principle and Mobius Inversion, Generating Functions, Partitions, Partially Ordered Sets and Designs.

Author(s): Torsten Ueckerdt

137 Pages