The aim of this talk is to present some homology theories for graphs (and, in particular, multipath homology), describe their mutual relationship, and see how these theories are connected with other homology theories (i.e. homology theories for…
Eventi
Duality for motivic cohomology over local fields – Thomas Geisser (Rikkyo University)
We give an outline of a (conjectural) construction of a cohomology theory for smooth and proper varieties over local fields with values in locally compact groups, satisfying a Pontrjagin duality. For certain weights, we give an ad hoc construction…
The first eigenvalue of the (fractional) Dirichlet-Laplacian vs. the infradius. – Francesca Bianchi (Università di Ferrara)
To attend in presence you need to fill in an online form, while to follow remotely you need a Google Meet link. Both of them are available at: https://seminarimap.wixsite.com/seminarimap/2021-2022/francesca-bianchi ABSTRACT: We discuss for…
Approximations of a Nichols algebra from a geometric point of view – Giovanna Carnovale (Università degli Studi di Padova, Italy)
The talk is based on an ongoing joint project with Francesco Esposito and Lleonard Rubio y Degrassi. Nichols (shuffle) algebras are a family of graded Hopf algebras (in a braided monoidal category) which includes symmetric algebras, exterior…
New geometries on positive-definite matrices and their relation to the power means – Bruno Iannazzo (Università degli Studi di Perugia)
We introduce a new family of geometries on the cone of positive definite matricesobtained from the Hessian of the power potential and provide explicit expressionsfor related quantities such as geodesics and distances.This generalizes in some sense…
Geodesic distances on Banach manifolds – Daniele Tiberio (SISSA)
In a connected Banach manifold, equipped with a weak Riemannian metric, we show that the infimum of the lengths among all piecewise smooth curves joining two points (namely, the geodesic “distance”) does not define a distance in general. We…
Generalized Schur-Weyl duality for quantum affine symmetric pairs and orientifold KLR algebras – Andrea Appel (Università di Parma, Italy)
In the work of Kang, Kashiwara, and Kim, the Schur–Weyl duality between quantum affine algebras and affine Hecke algebras is extended to certain Khovanov-Lauda-Rouquier (KLR) algebras, whose defining combinatorial datum is given by the poles of the…
Curvature varifolds and biological membranes – Katharina Brazda (University of Vienna)
The seminar will be online only. The link is available at: https://seminarimap.wixsite.com/seminarimap/2021-2022/katharina-brazda ABSTRACT: Varifolds are measures that describe generalized surfaces in geometric measure theory. Due to their…
Immagini Nash del disco – Antonio Carbone (Università di Trento)
Per maggiori informazioni visitare il sito:http://people.dm.unipi.it/babygeometri/index.html…
On modified quasilinear Schrödinger equations: a variational approach – Caterina Sportelli (Università di Bari)
In the last years, quasilinear Schrödinger-type equations became a topic of wide interest and they have been derived as a model of several physical phenomena. In this talk, after having recall some classical variational tools, we study the existence…