## Russian Mathematical Surveys, Volume 61, Issues 1-3 |

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### Contents

Twodimensional Dirac operator and the theory of surfaces | 79 |

Karoly Tandori obituary | 161 |

Discrete approximation of Americantype options | 174 |

Copyright | |

35 other sections not shown

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### Common terms and phrases

Abelian addition theorem algebraic curve algebraic independence algebraic system arbitrary arXiv assertion birational bounded cardinality channel Clifford torus coefficients condition conjecture consider construction Corollary corresponding curvature defined denote differential Dirac operator divisor eigenvalues elementarily equivalent elementary elements English transl equal equations equivalent estimate Fano variety fibration finite follows formula genus geometry Hence holds holomorphic inequality integral isomorphism L-formula L-structure Lemma linear system Mathematics Mathematics Subject Classification matrix mean curvature meromorphic functions minimal Mori fibre spaces Moscow multiplication Nauk non-singular Novikov obtain parameter Pezzo surfaces Poincare Poisson brackets polynomials potential problem properties Proposition proved pseudo-finite quantum query relation respect Riemann surface satisfies signature singular soliton solution spectral curve Steklov structure subset surfaces of degree symbol theta functions tori torus transformation tuple Uspekhi Mat values variables variety vector Weierstrass representation Willmore functional zero