Skip to content
Hosting en Venezuela

Barcelona Algebraic Topology Group

  • narrow screen resolution
  • wide screen resolution
  • Increase font size
  • Decrease font size
  • Default font size
  • default color
  • black color
  • cyan color
  • green color
  • red color
Friday's Topology Seminar 2017-2018

Speaker: Joachim Kock (UAB)
Title: Infinity-operads as polynomial monads
Place: Seminari C3b/158
22th September at 12:00
Lurie's infinity-operads are defined as certain Gamma-spaces, in the spirit of May-Thomason.  A different approach to infinity- operads is due to Cisinski and Moerdijk in terms of dendroidal Segal spaces.  After outlining these approaches, I will explain a new model for infinity-operads, given in terms of polynomial monads.  This provides an infinity version of the classical viewpoint that operads are monoids in the monoidal category of species/analytic functors under the substitution product. Leaving out the technical details, I will explain the ideas behind the proof that the infinity-category of analytic monads is equivalent to the infinity-category of dendroidal Segal spaces.  This is joint work with David Gepner and Rune Haugseng.

See the calendar for upcoming events.

Speaker: Albert Ruiz (UAB)
Title: On the classification of p-local compact groups over a fixed discrete p-toral group.
Place: Seminari C1/366
15th September at 12:00
p-local finite groups where defined by Broto-Levi-Oliver as a generalization of finite groups studied at a prime p. Later on, the same authors, defined p-local compact groups as a generalization of compact Lie Groups at a prime p and p-compact groups.
Examples of p-local finite groups which do not correspond to finite groups are known for every prime number p. In the infinite case, very few cases which do not correspond to p-compact groups have been studied. In this talk we will see a classification of p-local compact groups over some special discrete p-toral groups (joint work with Bob Oliver) which include a family of p-local compact groups which are not p-compact groups (joint work with Alex González and Toni Lozano).