### XIX International Conference

"Algebra, number theory, discrete geometry

and multiscale modeling:

contemporary problems, applications and problems of history ",

dedicated to the bicentennial of the birth of Academician P.L. Chebyshev

#### Tula, May 18-22, 2021

From 18 to 22 May 2021 in Tula on the basis of the Tula State Pedagogical University named after LN Tolstoy will host the XIX International Conference "Algebra, Number Theory, Discrete Geometry and Multiscale Modeling: Contemporary Problems, Applications and Problems of History" dedicated to the bicentennial of the birth of Academician P. L. Chebyshev.

Registration of conference participants - May 17, 2021.

Conference opening - May 18, closing - May 22, 2021.

V All-Russian Scientific Conference of Schoolchildren and Students "Chebyshev Readings" - May 22, 2021.

Form of holding - * video conference on the * Google Meet * or * TrueConf platform.

In organizing the conference together with the L.N. Tolstoy Tula State Pedagogical University are attended by Lomonosov Moscow State University, St. Petersburg State University, Moscow State Pedagogical University, Tula State University, M.V. Steklov Mathematical Institute of Russian Academy of Sciences, MCFPM, SPb branch of the M.V. Steklov Mathematical Institute of Russian Academy of Sciences and the Vavilov Institute of the History of Natural Science and Technology RAS.

Chairman of the organizing committee of the conference: rector of TSPU named after L. N. Tolstoy, professor ** Panin V.A. **

Deputy Chairmen of the Organizing Committee: ** Demidov S.S.**, ** Chubarikov V.N.**, ** Rebrova I.Yu.**, ** Vostokov S.V.**, ** Dobrovolsky N.M. **

Executive secretary of the organizing committee: ** Dobrovolsky N.N. **

Members of the organizing committee: ** Balaba I.N.**, ** Basalov Yu.A.**, ** Vankov B.P.**, ** Ivanov V.I.**, ** Isaeva N.M.**, ** Kirilina A.V.**, ** Podrezov K.A.**, ** Rarova E.M.**, ** Rodionov A.V. **

Chairman of the conference program committee: Professor ** Chubarikov V.N. **

Program Committee Co-Chairs: Corresponding Member ** Buchstaber V.M.**, Academician ** Konyagin S.V.**, Academician ** Matiyasevich Yu.V.**, academician ** Parshin A.N.**, academician ** Platonov V.P. **

Ответственный секретарь программного комитета: **Добровольский Н.М.**

Members of the program committee: Artamonov V.A. (Moscow), Balaba I.N. (Tula), Bernik V.I. (Minsk, Belarus), Bykovsky V.A. (Khabarovsk), Vsemirnov M. A. (St. Petersburg), Vostokov S. V. (St. Petersburg), Gashkov S. B. (Moscow), Gritsenko S. A. (Moscow), Deza E. I. ( Moscow), Demidov S.S. (Moscow), Dolbilin N.P. (Moscow), Zubkov A.M. (Moscow), Ivanov A.O. (Moscow), Ivanov V.I. (Tula), Kartashov V K. (Volgograd), Kasyanov P.O. (Kiev, Ukraine), Korolev M.A. (Moscow), Kuznetsov V.N. (Saratov), Laurinchikas A. (Vilnius, Lithuania), Mikhalev A.V. (Moscow), Mishchenko S.P. (Ulyanovsk), Moroz B.Z. (Moscow), Nesterenko Yu.V. (Moscow), Nizhnikov A.I. (Moscow), Olshansky A. Yu. (Nashville, USA) , Pachev U.M. (Nalchik), Rakhmonov Z.Kh. (Dushanbe, Tajikistan), Semenov A.L. (Moscow), Ustinov A.V. (Khabarovsk), Fomin A.A. (Moscow), Chirsky V G. (Moscow), Antonio Mucherino (France), Patrick Sole (France), Mathieu Dutour (France), Aleksandar Jurišić (Slovenia), Yaokun Wu (China), Mikhail Bounyaev (USA), Oleg Musin (USA), Sergey Shpectorov (UK), Fukshansky Lenny (California, USA), Navin Singhi (India), Marcelo Firer (Brasil), Yulia Kempner (Israel).

The aim of the XIX International Conference "Algebra, number theory, discrete geometry and multiscale modeling: modern problems, applications and problems of history", dedicated to the bicentennial of the birth of Academician P. L. Chebyshev, is the coordination of contemporary research in algebra, number theory, discrete geometry, multiscale modeling, and the history of mathematics and applications.

Conference Objectives:

- a discussion of recent advances in algebra, number theory, discrete geometry, and multiscale modeling;
- discussion of current research areas in algebra, number theory, discrete geometry and multiscale modeling;
- discussion of current fundamental problems in algebra, number theory, discrete geometry, multiscale modeling and ways to solve them;
- discussion of current problems in the history and methodology of mathematics;
- Engaging high school and junior students in math studies.

In particular, special attention will be paid to the discussion of research results supported by grants from the Russian Foundation for Basic Research, Russian Science Foundation, FTP. To solve the set tasks, the program assumes plenary reports and work in sections:

- groups;
- semigroups and universal algebras;
- rings and modules;
- applied and computer algebra, cryptography and discrete mathematics;
- analytical number theory;
- Diophantine approximations and the theory of transcendental numbers; discrete geometry and geometry of numbers;
- number-theoretic method in approximate analysis; history and methodology of mathematics;
- algebraic number theory;
- arithmetic and algebraic geometries;
- multi-scale mathematical modeling in physics.

Other sections may be included in the conference program.

Leading mathematicians are expected to deliver popular lectures on the issues of the conference to students and schoolchildren participating in the Chebyshev Readings.

All participants are requested to register by May 12, 2021

at the conference website http://poivs.tsput.ru/conf/international/XIX/

If your research was supported by a grant from the Russian Foundation for Basic Research or the Russian Science Foundation, you must indicate the grant number in your application.

Conference materials will be published before the start of the conference.

Participants are requested to send abstracts in the form of LaTeX and PDF files by May 12, 2021, by uploading them on the conference website in their personal account. In addition, in your personal account, you must download the consent for the transfer of non-exclusive rights, which is necessary for the publication of the abstracts of the report. The volume of abstracts should not exceed four printed pages. File names should preferably be in the Surname I.O. format. (e.g. PetrovAB.tex, PetrovAB.pdf). The abstract design template is available at http://poivs.tsput.ru/conf/international/XIX/info

Based on the results of the conference, it is planned to publish the proceedings of the conference in one or several issues of the "Chebyshev Collection" http://www.chebsbornik.ru/jour ISSN 2226-8383. The journal is included in the list of the Higher Attestation Commission and is indexed in Scopus. Articles are sent to the email address cheb@tsput.ru in the form of LaTeX and PDF files. We recommend using the standard LaTex styles and commands. Requirements for the design of materials, see the website of the "Chebyshev Collection" http://www.chebsbornik.ru/jour

To draw up the conference program, we ask you to confirm the full-time form of participation in the videoconferencing mode by May 12, 2021 by notifying the desired date to the email address * CHConf@tsput.ru * performances. Please indicate in the subject line: Full-time videoconferencing.

The registration fee is set at 2000 rubles. The registration fee must be transferred to the account of TSPU im. L. N. Tolstoy (details are listed below and on the conference website http://poivs.tsput.ru/conf/international/XIX/info). For all questions and suggestions on organizing and holding the conference, please contact the executive secretary of the organizing committee Nikolai Nikolayevich Dobrovolsky at the email address: *CHConf@tsput.ru*