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Barcelona Algebraic Topology Group

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Activities
Advanced lectures in Homotopy theory 2017: Discrete Morse Theory

From 24th to 26th of April 2017, a series of lectures will be given by two speakers to give an exposition of discrete Morse theory.

The lectures will take place in in the seminar room C3b of the department.

Antonio Díaz (Universidad de Málaga):
Lecture 1: Differentiable Morse theory. Applications to spheres and the classification of surfaces.
Lecture 2: PL Morse theory. Application to a theorem of Solomon-Tits.
Lecture 3: Algebraic discrete Morse theory. Application to the p-subgroups complex.

José Antonio Vilches (Universidad de Sevilla):
Lecture 1: Basic notions of discrete Morse theory: discrete Morse functions, critical simplices, vector fileds, Morse inequalities, and cancellation of critical simplices.
Lecture 2: Discrete Lyapunov functions,  comparison between discrete and differentiable  Morse theory. Morse theory via graphs with Hasse diagrams.
Lecture 3: Discrete Morse theory in graphs, in non-compact complexes, perfect discrete Morse functions.

Schedule:

Monday 24th
15:30-16:30 Díaz
16:50-17:50 Vilches

Tuesday 25th
11:10-12:10 Vilches
12:30-13:30 Díaz

Wednesday 26th
10:00-11:00 Vilches
11:30-12:30 Díaz

Organizer: Natàlia Castellana

 
Combinatorics and Homotopy Day

Combinatorics and Homotopy Day

CRM, Bellaterra, 10 February 2017.

This is the programme for the Combinatorics and Homotopy Day hosted by the Grup de Topologia Algebraica de Barcelona held at the Centre de Recerca Matematica, in the campus of Universitat Autonòma de Barcelona, Bellaterra on Friday 10th February 2017.

Speakers
 Mara Ofelia Ronco (Instituto de Fsica y Matematicas, Universidad de Talca)
 Andrew Tonks (Department of Mathematics, University of Leicester)
 Mark Weber (Czech Academy of Sciences)

Schedule
Friday 10 February 2017, CRM, Aula Petita, C1/028
 10:30 - 11:30 Andrew Tonks, 'Restriction species'
 11:00 - 11:30 Co ffee break.
 12:00 - 13:00 Mara Ofelia Ronco. 'Algebraic structures on the faces of graph associahedra'
 13:00 - 15:00 Lunch at Restaurant Buff et de Ciencies, UAB
 15:00 - 16:00 Mark Weber, 'Operads as polynomial 2-monads'

The abstracts are avalilable in the Friday's Seminar Section.

Organisers
 Imma Galvez Carrillo (Departament de Matematiques, Universitat Politecnica de Catalunya)
 Joachim Kock (Departament de Matematiques, Universitat Autonoma de Barcelona)

Supporting Grants
 MTM2016-80439-P, Teora de homotopa de estructuras algebraicas, MINECO-FEDER
 MTM2016-76453-C2-2-P, Topologa algebraica y de baja dimension, MINECO
 MTM2015-69135-P, Geometra y topologa de variedades, algebra y aplicaciones, MINECO-FEDER

 
IRTATCA: Interactions between Representation Theory, Algebraic Topology and Commutative Algebra

IRTATCA is a research program of the Centre de Recerca Matetmàtica which took place from January 7th to June 30th, 2015. The Barcelona Topology group collaborated in the activities of the semester.

The focus of this research program was on the interaction between algebraic topology, commutative algebra, and representation theory.

See IRTATCA for more information.

 
Advanced Lectures in Homotopy Theory 2016

From 5th to 8th of September 2016, a series of lectures will be given by two speakers to give an exposition of their research.  The lectures will take place in room A1 of the CRM.

Tilman Bauer: Dieudonné theory for unstable operations
Ergun Yalçin: Finite group actions on homotopy spheres

Tentative schedule
:

Monday 5th
11:30-12:30 Yalçin
15:00-16:00 Bauer

Tuesday 6th
10:00-11:00 Bauer
11:30-12:30 Yalçin

Wednesday 7th
10:00-11:00 Yalçin
11:30-12:30 Bauer

Thursday 8th
10:00-12:30 TBA (question session)

Organizer: Natàlia Castellana

The XI Spanish Group Theory meeting starts on Thursday afternoon in Barcelona, http://www-ma4.upc.edu/~burillo/encuentro/.

Read more...
 
Acte en ocasió de la jubilació de Manuel Castellet

El divendres 27 de juny a la tarda tindrà lloc a la seu de l’Institut d’Estudis Catalans (carrer del Carme, 47) un acte en ocasió de la jubilació del Dr. Manuel Castellet, organitzat conjuntament pel Centre de Recerca Matemàtica, l'IEC i el Departament de Matemàtiques de la UAB. L’acte es desenvoluparà segons el programa següent:

16.00-16.15: Parlaments institucionals

16.15-17.45: Manuel Castellet: una visió acadèmica i humana; a càrrec de Jaume Aguadé, Joaquim Bruna, Carles Casacuberta i Sebastià Xambó

17.45-18.30: Pausa cafè

18.30-19.30: Conferència de Guido Mislin (Ohio State University i ETH Zürich) amb el títol "Bounded Cohomology and Flat Bundles"

Seguidament, a partir de les 21.00 celebrarem un sopar a l'Hotel Avenida Palace.

 
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