Coxeter Matroids

Portada
Springer Science & Business Media, 6 de des. 2012 - 266 pàgines

Matroids appear in diverse areas of mathematics, from combinatorics to algebraic topology and geometry. This largely self-contained work provides an intuitive and interdisciplinary treatment of Coxeter matroids, a new and beautiful generalization of matroids which is based on a finite Coxeter group.

Key topics and features:

* Systematic, clearly written exposition with ample references to current research

* Matroids are examined in terms of symmetric and finite reflection groups

* Finite reflection groups and Coxeter groups are developed from scratch

* The Gelfand-Serganova Theorem is presented, allowing for a geometric interpretation of matroids and Coxeter matroids as convex polytopes with certain symmetry properties

* Matroid representations and combinatorial flag varieties are studied in the final chapter

* Many exercises throughout

* Excellent bibliography and index

Accessible to graduate students and research mathematicians alike, Coxeter Matroids can be used as an introductory survey, a graduate course text, or a reference volume.

 

Continguts

Matroids and Flag Matroids
1
Matroids and Semimodular Lattices
37
Symplectic Matroids
55
Lagrangian Matroids
81
Reflection Groups and Coxeter Groups
100
9
116
Coxeter Matroids
152
Buildings 199
198
References
253
Classification of root systems
259
151
260
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