International Scientific Conference Chernoff Approximations 2025

The international scientific conference Chernoff Approximations 2025 will be held on November 22, 2025. The conference will be held in a hybrid format: participation is possible online, as well as in person in Moscow and Nizhny Novgorod. If you want to organise a space for in-person participation in your city, please let us know and we will add this information to the conference website.
In his PhD thesis defended at Harvard University in 1968, American mathematician Paul Chernoff proposed a method for approximately finding semigroups of operators—a method which now bears his name. Today, Chernoff approximations are a flexible, powerful, and in-demand tool of functional analysis with numerous applications in modern mathematics and mathematical physics. The conference is a place for exchanging opinions and the latest scientific results related to Chernoff approximations.

The password will be sent to registered participants. To register please write "I need a password" to ivremizov@yandex.ru, k.dragunova13@mail.ru

https://us06web.zoom.us/j/7255178395

Thematic sections of the conference:

Chernoff's theorem, its generalisations and variants
Chernoff functions in specific cases
Theoretical applications of Chernoff's theorem
Practical calculation of Chernoff approximations
Rate of convergence of Chernoff approximations
Related questions and open problems

The working languages of the conference are English and Russian.

There is no registration fee.

Please inform the organisers about your participation by November 1 by email: ivremizov@yandex.ru

We invite you, your students, and colleagues to participate as listeners and speakers. Please tell anyone who might be interested about the conference!

Chernoff approximations 2025 - first letter (PDF, 189 Кб)

Talks

Speakers	Timing (UTC+3, Moscow)	Institution	Title	Abstract
Opening	08:55-09:00
Nikolai Shamarov	09:00-10:30	Lomonosov Moscow State University, Moscow Institute of Physics and Technology	TBA
Vasily Kolokoltsov	10:40-11:20	HSE University, Lomonosov Moscow State University	Approximation of Markov processes by random walks as the specific class of Chernoff approximation of operator groups
Oleg Galkin	11:30-11:55	HSE University	TBA
Coffee break	12:00-12:30
Sonia Mazzucchi	12:30-13:00	University of Trento	Chernoff solutions of the heat and the Schrodinger equation in the Heisenberg group
Yana Kinderknecht (Butko)	13:10-13:40	Independent Researcher	Chernoff approximations for some initial-boundary/external value problems
Andrey Utkin	13:50-14:50	Steklov Mathematical Institute of Russian Academy of Sciences	Bi-continuous semigroups and questions of their approximation
Lunch	15:00-16:00
S. Ivan Trapasso	16:00-16:30	Politecnico di Torino	Revisiting Chernoff-Feynman phase space path integrals with wave packets
Alexander Vedenin	16:40-17:10	HSE University	Fast converging Chernoff approximations
Rustem Kalmetiev	17:20-17:50	MIPT, KIAM RAS	When Chernoff Theorem Almost Works: Compactness of Non-Convergent Approximations
Dinner	18:00-19:00
Ivan Remizov	19:00-19:20	HSE, IITP RAS, MSU	Equations that are solved by semigroups and scheme of the proof of the theorem on the rate of convergence
Ranjit Singh	19:30-19:50	Independent Researcher	Possibility of Application of Chernoff Approximations to Selected Problems in Quantum Optics
Boris Volkov	20:00-20:30	MIPT, Steklov Mathematical Institute	Levy Laplacian on manifold and heat flows of differential forms
Ksenia Katalova (Dragunova)	20:40-21:00	HSE University	Numerical study of the rate of convergence of Chernoff approximations to solutions of the heat equation
Closing	21:00-21:10

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Date

November 22 08:55

Address

108

About

Faculty of Mathematics