The 13th Combinatorics Days-Covilhã July 13-14, 2023


Programme


Day 1: July 13th, Thursday

9:30-11:00 Sándor Bozóki (Institute for Computer Science and Control, Hungarian Academy of Sciences)

Mini-course: Spanning trees in the graph of pairwise comparisons I

11:00-11:30 Coffee

11:30-13:00 Jake Levinson (Simon Fraser University):

Mini-course: Flag Varieties and Schubert Calculus I

13:00-15:00 Lunch

15:00-15:30 Claudio Piedade (CMUP, University of Porto):

Core-free Degrees of Toroidal Maps

15:30-16:00 Diogo Soares (CMUC, University of Coimbra):

The commutation graph for the longest signed permutation

16:00-16:30 Rúben Palma (Nova University of Lisbon):

How we can make use of directed Hamiltonian graphs to spot an efficient vector for a pairwise comparison matrix

16:30-17:00 Coffee

17:00-17:30 Inês Rodrigues (FCT, Nova University of Lisbon):

A local characterization of quasi-crystal graphs

17:30-18:00 Neeraj Kumar (CMUP, University of Porto)

On counting numerical semigroups

18:00-18:30 Inês Legatheaux (CEAFEL):

TBA



Day 2: July 14th, Friday

9:30-11:00 Jake Levinson (Simon Fraser University):

Mini-course: Flag Varieties and Schubert Calculus II

11:00-11:30 Coffee

11:30-13:00 Sándor Bozóki (Institute for Computer Science and Control, Hungarian Academy of Sciences)

Mini-course: Spanning trees in the graph of pairwise comparisons II

13:00-14:30 Lunch

14:30-15:00 David Correia (ETH Zürich):

TBA

15:00-15:30 Gonçalo Varejão (CMUC, University of Coimbra):

On the generators of the Eulerian ideal of a graph

15:30-16:00 Manuel Silva (FCT, Nova University of Lisbon):

Distant words


Lectures will take place in Departamento de Matemática, Universidade da Beira Interior, Covilhã.


Organisers: Olga Azenhas (CMUC, UC), Henrique Cruz (CMA, UBI), Ilda Inácio (CMA, UBI), Samuel Lopes (CMUP, FCUP).




For questions and to participate send an email to comb23@ubi.pt



Accommodation: Participants are expected to arrive on Wednesday evening. The following are some hotels in Covilhã not far from Department of Mathematics:

Hotel Solneve***

Sport Hotel Gym***

Hotel Santa Eufémia***

Hotel Jardim**


Sponsors: CMA, CMUC, CMUP, UBI and FCT .