Contents of Volume 21, Number 3

All articles in this issue are freely accessible.

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George Lorentz and inequalities in approximation

T. Erdélyi.
St. Petersburg Math. J. 21 (2010), 365-405
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Five-vertex model with fixed boundary conditions

N. M. Bogolyubov.
St. Petersburg Math. J. 21 (2010), 407-421
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Extension of matrices with entries in $H^{\infty }$ on coverings of Riemann surfaces of finite type

A. Brudnyi.
St. Petersburg Math. J. 21 (2010), 423-432
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Classifying finite localizations of quasicoherent sheaves

G. Garkusha.
St. Petersburg Math. J. 21 (2010), 433-458
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An infinitely-often one-way function based on an average-case assumption

E. A. Hirsch and D. M. Itsykson.
St. Petersburg Math. J. 21 (2010), 459-468
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An exotic invariant for 6-manifolds: The direct construction

A. V. Zhubr.
St. Petersburg Math. J. 21 (2010), 469-482
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Junction of noncomposite polyhedra

A. V. Timofeenko.
St. Petersburg Math. J. 21 (2010), 483-512
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