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, SZTAKI, Budapest): slides

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): slides

Mini-course: Flag Varieties and Schubert Calculus I

13:00-15:00 Lunch

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

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): slides

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 Martins (FCUL): slides

The rank partition and partial symmetries on tensors



Day 2: July 14th, Friday

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

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, SZTAKI, Budapest): slides

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

13:00-14:30 Lunch

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

Hamilton cycles in pseudorandom graphs

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

On the generators of the Eulerian ideal of a graph

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

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**


Participants: Olga Azenhas (UC), Gastão Bettencourt (UL), Sándor Bozóki (Institute for Computer Science and Control, SZTAKI, Budapest), David Correia (ETH Zürich), Inês Serôdio Costa (UA), Henrique Cruz (UBI), Evaristo das Mangas (UBI), Rosário Fernandes (UNL), Miguel Fialho (UBI), Pedro Freitas (UL), Jake Levinson (Simon Fraser University), João Hipólito (UL), Ilda Inácio (UBI), Neeraj Kumar (UP), Jake Levinson (Simon Fraser University), Samuel Lopes (UP), António Malheiro (UNL), Ricardo Mamede (UC), Inês Legatheaux Martins (UL), Rúben Palma (UNL), Claudio Piedade (UP), Carla Rizzo (University of Palermo), Fátima Rodrigues (UNL), Inês Rodrigues (UNL), Rogério Serôdio (UBI), Manuel Silva (UNL), Diogo Soares (UC), Maria Manuel Torres (UL), Gonçalo Varejão (UC).



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