Algebra i Analiz, 1990, Volume 2, Issue 2

Algebra i Analiz

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1990, Volume 2, Issue 2

Expository Surveys
	A brief excursion into the theory of hyponormal operators A. L. Vol'berg, V. V. Peller, D. V. Yakubovich	1–38

Research Papers
	Coranks of elements of linear groups and the complexity of algebras of invariants N. L. Gordeev	39–64
	Verma modules over Kac–Moody algebras of rank 2 F. G. Malikov	65–84
	Asymptotics of the spectrum of the Neumann problem in singularly degenerate thin domains. I S. A. Nazarov, B. A. Plamenevskii	85–111
	Diffeomorphism and stable diffeomorphism of simply connected manifold N. Yu. Netsvetaev	112–120
	On the regularity of weak solutions of variational problems of plasticity theory G. A. Seregin	121–140
	Generalized Toda chains in discrete time Yu. B. Suris	141–157
	An inverse spectral problem for the modulus of the Hankel operator, and balanced realizations S. R. Treil'	158–182
	Symmetries of nonlinear lattices A. B. Shabat, R. I. Yamilov	183–208
	A model of Verma modules over the Virasoro algebra D. V. Yur'ev	209–226

	Vladimir Abramovich Rokhlin 1919–1984 (on the 70th anniversary of his birth) A. M. Vershik	227–235
	V. A. Rokhlin's work in ergodic theory A. M. Vershik	236–241
	V. A. Rokhlin's work in topology O. Ya. Viro, V. M. Kharlamov	242–248

Book Reviews
	К. J. Falconer. The Geometry of Fractal Sets // Cambridge tracts in mathematics. Vol. 85. Cambridge: University Press, 1985. 162 p. A. B. Gulisashvili	249–259