Algebra i Analiz, 1998, Volume 10, Issue 4

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1998, Volume 10, Issue 4

Research Papers
	Absolute continuity of a two-dimensional periodic magnetic Hamiltonian with discontinuous vector potential M. Sh. Birman, T. A. Suslina	1
	On the solution of normality equations in dimension $n\ge 3$ A. Yu. Boldin, R. A. Sharipov	37
	Metrics with upper-bounded curvature on $2$-polyhedra. II Yu. D. Burago, S. V. Buyalo	62
	Form nets and the lattice of upper-diagonal subgroups of the symplectic group over a field of characteristic $2$ E. V. Dybkova	113
	On convergent metrics of upper-bounded curvature on 2-polyhedra S. V. Ivanov	130
	Interpolation in a neighborhood of a cusp point A. M. Kotochigov, N. A. Shirokov	142
	$K'$-theory of quadrics with degenerations O. M. Pushin	177
	Bochner's technique for an $m$-dimensional compact manifold with an $\operatorname{SL}(m,R)$-structure S. E. Stepanov	192
	A finiteness bound for the singular spectrum in a neighborhood of a singular point of operators of the Friedrichs model S. I. Yakovlev	210