Cotygodniowe seminarium badawcze
Organizatorzy
- prof. dr hab. Rafał Latała
- dr Marta Strzelecka
Informacje
czwartki, 12:15 , sala: 3160Strona domowa
http://lists.mimuw.edu.pl/listinfo/sem-rpLista referatów
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15 października 2026 12:15
Adam Osękowski
Dual Inequalities in Hardy Spaces H_p, 0<p<1 (Nierówności dualne w przestrzeniach H_p, 0<p<1)
Przestrzenie Hardy'ego H_p odgrywają ważną rolę w analizie i rachunku prawdopodobieństwa, w szczególności, dla 0<p<1 stanowią oną wygodną alternatywę dla klasycznych przestrzeni L_p. Jak wiadomo, przestrzenią dualną do H_p (dla 0<p<1) jest odpowiednia przestrzeń funkcji/martyngałów …
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8 października 2026 12:15
Rafał Latała
Initial meeting (Spotkanie organizacyjne)
The meeting will be devoted to setting the schedule for the upcoming weeks and a brief overview of important results obtained in probability in the recent months (many of them with AI assistance).
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11 czerwca 2026 12:15
Witold Bednorz (University of Warsaw)
Bernoulli Theorem for the case of processes invariant under the action of a finite group (Bernoulli Theorem for the case of processes invariant under the action of a finite group)
We show how to formulate Bernoulli Theorem for the special case of canonical Bernoulli processes invariant under the action of a finite group. This characterization appears to be equivalent to the Dudley type bound and …
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28 maja 2026 12:15
Michał Strzelecki (Uniwersytet Warszawski)
Stability under mixtures of functional and transportation inequalities (Stability under mixtures of functional and transportation inequalities)
In the first part of the talk I will recall the definition of a mixture of probability measures and give an overview of known results about stability under mixtures of functional inequalities (such as the …
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21 maja 2026 12:15
Radosław Adamczak (University of Warsaw)
Exponential inequalities and the law of the iterated logarithm for multiple stochastic integrals and U-statistics on the Poisson space (Exponential inequalities and the law of the iterated logarithm for multiple stochastic integrals and U-statistics on the Poisson space)
I will start by recalling some known concentration estimates and limit theorems for Poisson point processes with focus on U-statistics. Next I will discuss moment and tail inequalities for multiple stochastic integrals (of deterministic functions), …
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16 kwietnia 2026 12:15
Tomasz Cieślak (IM PAN)
Looking for best constants in inequalities between Hessians (Looking for best constants in inequalities between Hessians)
In my talk I will introduce a family of functional inequalities introduced recently by myself and collaborators. It turned out to be fruitful in dealing with thermodynamics related systems of PDEs. I will emphasize the …
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9 kwietnia 2026 12:15
Rafał Latała (Uniwersytet Warszawski)
On the subgaussian comparison theorem (after Ramon van Handel) (On the subgaussian comparison theorem (after Ramon van Handel))
We will present the recent result of Ramon van Handel (https://arxiv.org/abs/2512.18588) and prove that any 1-subgaussian random vector is dominated in convex ordering by a universal constant times a standard Gaussian vector. This strengthens Talagrand's …
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19 marca 2026 12:15
Witold Bednorz (University of Warsaw)
Decoupling via Affine Spectral-Independence: Beck-Fiala and Koml´os Bounds Beyond Banaszczyk (Decoupling via Affine Spectral-Independence: Beck-Fiala and Koml´os Bounds Beyond Banaszczyk)
The plan is to address new advances in the Koml'os conjecture, i.e., the upper bound (\log d)^{1/4}. It is based on a paper by Nikhil Bansal and Haotian Jiang.
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5 marca 2026 12:15
Adam Osękowski (Uniwersytet Warszawski)
Weak-type estimates for differentially subordinate martingales, a dual approach (Oszacowania słabego typu dla martyngałów silnie dominowanych - podejście dualne)
Celem będzie zaprezentowanie alternatywnej metody dowodzenia optymalnych oszacowań dla martyngałów silnie dominowanych. Standardowe podejście Burkholdera polega na skonstruowaniu funkcji dwóch zmiennych spełniających odpowiednie własności majoryzacji i wklęsłości. Wykażemy, w jaki sposób można uzyskiwać wyniki przy …
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26 lutego 2026 12:15
Ioannis Kavvadias (University of Warsaw)
Heat flow on the cube: From Enflo to Talagrand (Heat flow on the cube: From Enflo to Talagrand)
We prove a dimension-free analogue of Pisier's inequality on the discrete cube due to Ivanisvili/ van Handel/ Volberg that resolved a conjecture of Enflo. Moreover, we use their results to recover a variant of a …
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22 stycznia 2026 12:15
Daniel Murawski (University of Warsaw)
Optimal pointwise lower bounds for even log-concave densities (Optimal pointwise lower bounds for even log-concave densities)
We show that among all symmetric real log-concave random variables X with variance 1 and any t_0 in range [0, √3] the quantity f_X(t_0) is minimized by a uniform, Laplace or truncated Laplace distribution. We …
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8 stycznia 2026 12:15
Jacek Jakimiuk (University of Warsaw)
Stability of Khintchine-type inequalities revisited (Stability of Khintchine-type inequalities revisited)
I give several results on stability of certain Khintchine-type inequalities for Rademacher random variables and random vectors uniform on Euclidean spheres. By stability we mean an inequality strengthened by some positive deficit depending on distance …
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18 grudnia 2025 12:15
Krzysztof Ciosmak (Beijing Institute of Mathematical Sciences and Applications)
Localisation for constrained transports: irreducible convex paving and beyond (Localisation for constrained transports: irreducible convex paving and beyond)
Martingale optimal transport is a tool that allows for a model-free pricing of options. Given two probabilities in convex order, I consider the set of martingale transports between them, i.e., the couplings of the given …
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4 grudnia 2025 12:15
Zong Shang (Institut Polytechnique de Paris,)
Benign Overfitting Property of the Minimum ell_q-norm Interpolant Estimator in Regression and Classification Problems (Benign Overfitting Property of the Minimum ell_q-norm Interpolant Estimator in Regression and Classification Problems)
In this talk, I will establish high-probability non-asymptotic upper bounds for the population excess risk of minimum \ell_q-norm interpolating estimators in linear regression for all q\geq 1, and minimum \ell_2-norm interpolating classifiers in linear classification. …
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27 listopada 2025 12:15
Witold Bednorz (University of Warsaw)
Some remarks on GSW algorithm (Some remarks on GSW algorithm)
We present an improvement of the GSW martingale method. This has some implications for the Komlos conjecture.
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