Simion Stoilow Institute of Mathematics of the , ICUB - The Research Institute of the University of Bucharest, Faculty of Mathematics and Computer Science, Ovidius University of Constanţa, Faculty of Mathematics and Computer Science

Topology and Geometry A conference in memory of Stefan Papadima (1953-2018)

May 28-31, 2018

http://math.univ-ovidius.ro/workshop/2018/TGSP/#/

PROGRAM

Monday, May 18 Schedule of talks (Simion Stoilow Institute of Mathematics of the Romanian Academy, Bucharest

"Miron Nicolescu" amphitheater, ground floor)

09:30 – 10.30 Alexandru SUCIU - TBA

10.30 – 11.00 Coffee break

Chairperson:

11.00 – 11.30 Nero BUDUR Homotopy of singular algebraic varieties

11.30 - 11.40 Break

11:40 – 12:10 Octavian CORNEA A Lagrangian Thom-type morphism

12.10 – 15:00 Lunch break

Chairperson:

15:00 – 15:30 Martin MARKL Disconnected rational homotopy theory

15:30 – 15:40 Break

Enrique ARTAL Quasi-projectivity of fundamental groups of algebraic 15:40 – 16:10 BARTOLO links

16:10 – 16:40 Coffee break

Chairperson:

16:40 – 17:10 Mihai TIBAR Polar degree conjectures

17:10 – 17:20 Break

17:20 – 17:50 Barbu BERCEANU Strong and shifted stability for cohomology of configuration spaces

Tuesday, May 29

Schedule of talks ("Miron Nicolescu" amphitheater, ground floor)

Chairperson:

09:30 – 10.00 Gavril FARKAS Topological invariants of groups and Koszul modules 10:00 – 10:10 Break

10:10 – 10:40 Claudiu RAICU Koszul modules and syzygies

10.40 – 11.10 Coffee break

Chairperson:

11.10 – 11.40 Takuro ABE Generators for logarithmic derivation modules of hyperplane arrangements 11.40 - 11.50 Break

11:50 – 12:20 Laurentiu MAXIM Mellin transformation, propagation and abelian duality

12.20 – 15:00 Lunch break

Chairperson:

15:00 – 15:30 Paolo Lower central series, surface braid groups and BELLINGERI permutations

15:30 – 15:40 Break

15:40 – 16:10 Giovanni GAIFFI The cohomology ring of wonderful models of toric arrangements 16:10 – 16:40 Coffee break

Chairperson:

16:40 – 17:10 Mario SALVETTI Cohomology of superelliptic families and complex braid groups 17:10 – 17:20 Break

17:20 – 17:50 Luis Commensurability in Artin groups

19:00 – 22.00 : SOCIAL DINNER

Wednesday, May 30

Schedule of talks ("Miron Nicolescu" amphitheater, ground floor)

Chairperson:

09:30 – 10.00 Andras NEMETHI Generic analytic structures of surface singularities 10:00 – 10:10 Break

10:10 – 10:40 Botong WANG Hodge theory in the enumeration of points, lines, planes, etc. 10.40 – 11.10 Coffee break

Chairperson:

11.10 – 11.40 Sorin Branched Holomorphic Cartan Geometries DUMITRESCU 11.40 - 11.50 Break

11:50 – 12:20 Emanuele On posets of components of Abelian arrangements DELUCCHI 12.20 – 15:00 Lunch break

15:00 – 19:00 Free discussions and research in groups

Thursday, May 31

Schedule of talks ("Miron Nicolescu" amphitheater, ground floor)

Chairperson:

09:30 – 10.00 Florian POP Canonical generators of inertia: From topology to arithmetic 10:00 – 10:10 Break

J.I. COGOLLUDO- Quasiprojectivity of even Artin Groups 10:10 – 10:40 AGUSTIN

10.40 – 11.10 Coffee break

Chairperson:

11.10 – 11.40 Viviana ENE Binomial edge ideals and their symbolic powers 11.40 - 11.50 Break

11:50 – 12:20 Mircea MARTIN Holomorphic Spectral Theory and Grassmann Manifolds in a C*−Algebra Setting 12.20 – 15:00 Lunch break

Chairperson:

15:00 – 15:30 Sadok KALLEL On the geometry and topology of barycenter spaces

15:30 – 15:40 Break

15:40 – 16:10 Daniel MATEI Resonance varieties and matrix tree theorems

16:10 – 16:40 Coffee break

Chairperson:

16:40 – 17:10 Mutsuo OKA On the connectivity of the Milnor fiber of mixed functions

17:10 – 17:20 Break

Vasile Co-Higgs bundles over ruled surfaces 17:20 – 17:50 BRINZANESCU

* The meeting is organized in partnership with Le Groupement de Recherche International EcoMath.

We gratefully acknowledge the support offered by Le Centre Francophone en Mathématique Bucharest.