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The multifacettes of the Stasheff polytope
- Prelegent(ci)
- Jean-Louis Loday
- Afiliacja
- Université Louis Pasteur
- Termin
- 9 stycznia 2007 12:00
- Pokój
- p. 5810
- Seminarium
- Seminarium „Topologia algebraiczna”
The Stasheff complex is a polytope whose vertices are in bijection with the planar binary trees (one polytope for each n). It plays a role in many problems in algebraic topology (loop spaces, compactification). Recently it appeared also in algebraic combinatorics and in noncommutative geometry. In this lecture I will present a simple construction of these polytopes and show that the minimal triangulation is related to the "parking functions". Wspólne posiedzenie seminarium z Topologii Algebraicznej i seminarium z Geometrii Nieprzemiennej.
