Mathematical Events

Velmisov Petr Aleksandrovich (on his seventieth birthday)

A. S. Andreev^a, A. V. Ankilov^b, T. E. Badokina^c, D. I. Boyarkin^c, I. V. Boykov^d, D. K. Egorova^c, V. Z. Grines^e, S. A. Grishina^b, V. K. Gorbunov^a, Yu. N. Deryugin^f, E. V. Desyaev^c, R. V. Zhalnin^c, I. V. Konopleva^b, L. R. Kim-Tyan^g, V. N. Krizsky^h, S. I. Martynovⁱ, T. Ph. Mamedova^c, S. M. Muryumin^c, E. E. Peskova^c, Yu. V. Pokladova^b, O. V. Pochinka^e, V. P. Radchenko^j, I. P. Ryazantseva^k, S. I. Spivak^l, L. A. Sukharev^c, A. O. Syromyasov^c, V. F. Tishkin^m, I. I. Chuchaev^c, P. A. Shamanaev^c, O. S. Yazovtseva^c, N. G. Yarushkina^b, A.-V. Ion<sup>n

a</sup> Ulyanovsk State University
^b Ulyanovsk State Technical University
^c Ogarev Mordovia State University, Saransk
^d Penza State University
^e National Research University – Higher School of Economics in Nizhny Novgorod
^f Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
^g Moscow State Institute of Steel and Alloys (Technological University)
^h Sterlitamak Branch of Bashkir State University
ⁱ Yugra State University, Khanty-Mansiysk
^j Samara State Technical University
^k Nizhny Novgorod State Technical University
^l Institute of Petrochemistry and Catalysis of RAS
^m Keldysh Institute of Applied Mathematics of Russian Academy of Sciences, Moscow
ⁿ Institute of Mathematical Statistics and Applied Mathematics of the Romanian Academy