Table of contents

Volume 51

Number 2, April 1996

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COMMUNICATIONS OF THE MOSCOW MATHEMATICAL SOCIETY

MATHEMATICAL EVENTS

181

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Contents §1. Introduction and notation §2. Main results §3. Lemmas §4. Proof of Theorem 1 §5. Proof of Theorem 2 §6. Proof of Theorem 3 §7. Proof of Theorem 5 §8. Proof of Theorem 6 §9. Proof of Theorem 7

Bibliography

205

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Contents §0. Introduction §1. The Yangian §2. The quantum determinant and the centre of §3. The twisted Yangian §4. The Sklyanin determinant and the centre of §5. The quantum contraction and the quantum Liouville formula for the Yangian §6. The quantum contraction and the quantum Liouville formula for the twisted Yangian §7. The quantum determinant and the Sklyanin determinant of block matrices

Bibliography

283

Contents Introduction §1. Some notions and results from non-smooth analysis §2. Main definitions §3. Equivalence of minimax and viscosity solutions §4. Generalized characteristics §5. Piecewise smooth solutions §6. The Cauchy problem for a Hamilton-Jacobi equation §7. Discontinuous solutions of the Dirichlet problem for first-order PDE §8. Minimax solutions and cost functions of differential games

Bibliography

315

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