The $f$-vector of a simplicial complex is the vector whose entries record the number of faces in each dimension. It is typically convenient to study an integer linear transformation of the $f$-vector, called the $h$-vector, which naturally appears…
Eventi
Teoria dei modelli della doppia appartenenza – Rosario Mennuni
È facile mostrare che il “grafo di appartenenza” di ogni modello numerabile della teoria degli insiemi, ottenuto collegando x e y se x appartiene a y *oppure* y appartiene a x, è isomorfo al Grafo Random (o Grafo di Rado). Questo è vero per teorie…
Hecke correspondences and Lagrangian fibrations – Sam DeHority (Columbia University)
I will discuss a method to associate new algebraic structures with deformations to certain holomorphic Lagrangian fibrations, and describe their relation with other parts of mathematical physics. This algebraic structure controls the enumerative…
The geometry of the Word Problem – Jeronimo Garcia Mejia (KIT Karlsruher Institut für Technologie)
We will review a classical problem in group theory, the so-called Word Problem, from a geometric perspective by relating it to an even older geometric problem, the Isoperimetric Problem. The main actor being Dehn functions. …
Glimpses of Geometry: the Italian schools in the years around 1900
The conference aims to collect contributions to the history of geometry in Italy at the turn of the nineteenth and…
Young Researchers Meeting in Algebra and Geometry 2022
A spectral Galerkin method for the solution of reaction-diffusion equations on metric graphs – Anna Weller (University of Cologne)
We investigate a spectral solution approach for reaction-diffusion equations on graphs interpreted as topological space (metric graphs). Of special interest…
Currents with coefficients in groups and applications to network optimization problems – Annalisa Massaccesi (University of Padova)
TBA…
Holomorphic motions of Julia sets: dynamical stability in one and several complex variables – Fabrizio Bianchi (Université de Lille, France)
We discuss the stability of holomorphic dynamical systems under perturbation. In dimension 1, the theory is now classical and is based on…