Uspekhi Mat. Nauk, 2021, Volume 76, Issue 4(460)

JOURNALS // Uspekhi Matematicheskikh Nauk // Archive

2021, Volume 76, Issue 4(460)

Surveys
	Chaos and integrability in $\operatorname{SL}(2,\mathbb R)$-geometry A. V. Bolsinov, A. P. Veselov, Y. Ye	3
	Integrable polynomial Hamiltonian systems and symmetric powers of plane algebraic curves V. M. Buchstaber, A. V. Mikhailov	37
	Dynamical $\mathfrak{sl}_2$ Bethe algebra and functions on pairs of quasi-polynomials A. N. Varchenko, A. M. Slinkin, D. Thompson	105
	Tetrahedron equation: algebra, topology, and integrability D. V. Talalaev	139

Brief Communications
	Multipoint formulae for inverse scattering at high energies R. G. Novikov	177
	Multilevel interpolation for Nikishin systems and boundedness of Jacobi matrices on binary trees A. I. Aptekarev, V. G. Lysov	179
	Groups generated by involutions, numberings of posets, and central measures A. M. Vershik	181

Mathematical Life
	Igor' Moiseevich Krichever (on his 70th birthday) V. M. Buchstaber, A. N. Varchenko, A. P. Veselov, P. G. Grinevich, S. Grushevsky, S. Yu. Dobrokhotov, A. V. Zabrodin, A. V. Marshakov, A. E. Mironov, N. A. Nekrasov, S. P. Novikov, A. Yu. Okounkov, M. A. Olshanetsky, A. K. Pogrebkov, I. A. Taimanov, M. A. Tsfasman, L. O. Chekhov, O. K. Sheinman, S. B. Shlosman	183