Organizatorzy

prof. dr hab. Rafał Latała

Informacje

czwartki, 12:15 , sala: 3160

Strona domowa

http://lists.mimuw.edu.pl/listinfo/sem-rp

Lista referatów

26 października 2023 12:15
Rafał Martynek (Uniwersytet Warszawski)
Lipschitz comparison for Bernoulli processes
I’ll discuss an improvement of the recent result by Chu and Raginsky (https://arxiv.org/pdf/2304.14474.pdf) concerning comparison of the expected suprema of Bernoulli processes with respect to some Lipschitz mapping. Our result (together with Witold Bednorz) is …
12 października 2023 12:15
Maciej Wiśniewolski
Gaussian Multiplicative Chaos on balls: Laplace transforms, small deviations and some connections with maximal packing
During my talk i will show some new representations of Laplace transforms of the Gaussian Multiplicative Chaos (GMC) on Euclidean balls in R^d. I will discuss the problem of small deviations of GMC and their …
5 października 2023 12:15
Kunal Dutta (Uniwersytet Warszawski)
Dimensionality Reduction for Persistent Homology with Gaussian Kernels
Computing persistent homology using Gaussian kernels is useful in the domains of topological data analysis and machine learning. We consider a power distance version of the Gaussian kernel distance (GKPD) given by Phillips, Wang and …
25 maja 2023 12:15
Rafał Latała (Uniwersytet Warszawski)
Chevet's type inequality for subexponential Weibull processes and norms of random matrices with iid entries
We will present a Chevet-type inequality for subexpontial Weibull processes and show how it may be applied to find two-sided bounds for operator \ell_p to \ell_q norms of random rectangular matrices with iid Weibull entries. …
18 maja 2023 12:15
Alexandros Eskenazis (Sorbonne Université)
Discrete logarithmic Sobolev inequalities in Banach spaces
We shall discuss certain aspects of vector-valued harmonic analysis on the discrete hypercube. After presenting the geometric motivation behind such investigations, we will survey known results on the Poincaré inequality and Talagrand’s influence inequality. Then …
11 maja 2023 12:15
Dominik Kutek (Uniwersytet Warszawski)
On Orlicz spaces satisfying the Hoffmann-Jørgensen inequality
We say that an Orlicz function \Psi satisfies the H-J inequality, if \| \sum_{k=1}^n X_k \|_{\Psi} \le C_{\Psi} ( \| \sum_{k=1}^n X_k \|_{L_1} + \| \max_{k \le n}\|X_k\| \|_{\Psi}) for any collection \{X_k\}_{k \le n} …
27 kwietnia 2023 12:15
Piotr Nayar (Uniwersytet Warszawski)
Maximal sections of l_p^n balls for large values of p.
Let B_p^n be the unit ball in the standard p-th norm in R^n. Suppose we intersect this ball with a codimension one hyperplane H and ask the following question: for which H is the volume …
13 kwietnia 2023 12:15
Michał Strzelecki (Uniwersytet Warszawski)
The s-numbers of Schatten class embeddings
Roughly speaking, the s-numbers of a linear operator between two Banach spaces are certain quantities which indicate how compact this operator is. One can introduce various sequences of s-numbers (classical examples include the approximation and …
30 marca 2023 12:15
Witold Bednorz (Uniwersytet Warszawski)
Smoothed Analysis of the Komlos Conjecture
Last year, a new result appeared towards the solution of the well-known Komlos conjecture. The conjecture says that given n vectors in R^d with Euclidean norm at most one, there is always a coloring ± …
23 marca 2023 12:15
Adam Osękowski (Uniwersytet Warszawski)
Oszacowania dla wieloliniowych operatorów maksymalnych (Inequalities for multilinear maximal operators)
Teoria operatorów wieloliniowych jest prężnie rozwijającym się działem analizy harmonicznej. W szczególności, oszacowania z wagą dla wieloliniowych funkcji maksymalnych, kwadratowych oraz operatorów singularnych były intensywnie badane w ciągu ostatnich dziesięciu lat. Celem odczytu będzie zaprezentowanie …
16 marca 2023 12:15
Maciej Wiśniewolski (Uniwersytet Warszawski)
On bivariate distributions of the local time of It\^o-McKean diffusions
Denote as $L$ the local time at $0$ of an It\^o-McKean diffusion $X$. We present a new explicit description of the distribution of $L_t$ in terms of convolution exponent and, using the excursion theory, we …
9 marca 2023 12:15
Stanisław Cichomski (Uniwersytet Warszawski)
Coherent Distributions on the Square
Let C denote the family of coherent distributions on [0,1]^2, i.e. all those probability measures m for which there exists a random vector (X,Y)~m such that X=P(E|G), Y=P(E|H) a.s. for some event E and sigma …
2 marca 2023 12:15
Samer Dweik (Uniwersytet Warszawski)
Sharp Poincaré and trace inequalities via Optimal Transport
In this talk, we study some Optimal Transport problems and we also find their corresponding minimal flow formulations. Then, we show that some sharp Poincaré and trace inequalities in BV space on bounded sets can …
26 stycznia 2023 12:15
Rafał Latała (Uniwersytet Warszawski)
Spectral norm bounds for Rademacher matrices
We will discuss bounds for the mean spectral norm of unhomogenous Rademacher matrices. We will recall a general conjecture formulated together with Witold Światkowski and show that it is satisfied in few particular cases.
12 stycznia 2023 12:15
Michał Kotowski (Uniwersytet Warszawski)
Large deviations for the interchange process on the interval and incompressible flows
In the talk I will explain how large deviations for the one-dimensional interchange process are related to incompressible Euler equations. I will sketch how to obtain matching large deviation lower and upper bounds for processes …