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arxiv: 1301.3987 · v1 · pith:KI2NVFO4new · submitted 2013-01-17 · 🧮 math.CO

Tres lecciones en combinatoria algebraica. I. Matrices totalmente no negativas y funciones sim\'etricas

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keywords matricesnegativastotalmentetresalgebraicaareascombinatoriaesta
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En esta serie de tres articulos, damos una exposicion de varios resultados y problemas abiertos en tres areas de la combinatoria algebraica y geometrica: las matrices totalmente no negativas, las representaciones del grupo simetrico, y los arreglos de hiperplanos. Esta primera parte presenta una introduccion a las matrices totalmente no negativas, y su relacion con las funciones simetricas. In this series of three articles, we give an exposition of various results and open problems in three areas of algebraic and geometric combinatorics: totally non-negative matrices, representations of the symmetric group, and hyperplane arrangements. This first part presents an introduction to totally non-negative matrices and their relationship with symmetric functions.

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