This is the first announcement for The V international conference "Algebra and Number Theory: Modern Problems and Applications". This conference will take place from May, 19 until 24, 2003, in Tula. The conference is organized jointly by the Tula State Pedagogical University, Moscow State University, Steklov Mathematical Institute, Moscow Pedagogical State University, Tula State University, Chebyshev's fund. The Organizing Committee: N.Shaydenko - Chairman, Rector, TSPU, N.Dobrovolskij - Secretary. The Programm Committee: V.Latyshev - Chairman, Yu.Nesterenko - Chairman, S.Pikhtilkov - Secretary. The folloing sections will work at the conference: 1. Rings and Modules; 2. Groups and Algebraic Systems; 3. Commutative Algebra and Algebraic geometry: 4. Computer Science in Algebra and Number Theory; 5. The Analytic Number Theory; 6. Transcendent Numbers and Diophant approximations; 7. Discrete Mathematics, Geometry of Numbers, and Cryptography. The list of invited speakers includes: V.Artamonov, G.Arkhipov, V.Bezverkhnij, V.Chubarikov, N.Dobrovolskij, M. Garaev, A.Giambruno, V.Iskovskikh, A.Karatsuba, S.Konjagin, V.Kurakin, V.Latyshev, A.Laurincikas (Lithuania), A.V.Mikhalev, N.Moschevitin, Yu.Nesterenko, A.Nechaev, A. Ol'shanskiy, S.Pikhtilkov, I. Sakhaev, I.Shestakov, A.Schinzel (Poland), U.Umirbaev, M.Zaicev, V.Zakharov, A.Zubkov. The Tula's ground is a native land of Leo Tolstoy. The most of his books was written in "Yasnaya Polyana" near Tula. The history of developments of the weapon in Russia from times of Ioann IV up to our days is exposed in a Museum of weapon. Very interesting also Museums of Tula's samovar and harmonica. The deadline for submission of abstracts is February 1, 2003. The entrance fee will be $100. The prices in hotel is about $10-20 a day, in guest house - $4. .................................................................. Registration form: .................................................................. Full name: Position: Title of the talk: Institution: Address: Zip Code: City: Country: Phone: Fax: e-mail: .................................................................. You have to sent the copy of a passport, two months before the conference to recieve a visa. Our fax: 7-0872-354060 Our e-mails: dobrovol@tspu.tula.ru, pikhtilkov@tula.net. We hope to see you in May! Organizing Committee