×

Found 45 Documents (Results 1–45)

Conditions for complete transparency on the sphere for the three- dimensional wave equation. (English. Russian original) Zbl 0799.35141

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 397-401 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 6, 953-957 (1992).
Reviewer: V.Lovicar (Praha)
MSC:  35L15 35L05
PDFBibTeX XMLCite

New algorithms of the Monte Carlo method for solving the Helmholtz equation. (English. Russian original) Zbl 0799.35048

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 387-391 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 6, 943-947 (1992).
Reviewer: J.Seidler (Praha)
MSC:  35J05 65C05
PDFBibTeX XMLCite

On infinitely smooth almost-wavelets with compact support. (English. Russian original) Zbl 0803.42021

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 378-382 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 6, 935-938 (1992).
MSC:  42C40
PDFBibTeX XMLCite

On a global integral representation of complex-analytic functions on a Stein manifold. (English. Russian original) Zbl 0793.32003

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 369-372 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 792-795 (1992).
MSC:  32A25 32E10
PDFBibTeX XMLCite

A problem of Tricomi type with a nonlocal conjugation condition for an equation of mixed type. (English. Russian original) Zbl 0806.35122

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 364-368 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 787-791 (1992).
Reviewer: M.Krbec (Praha)
MSC:  35M10 45B05
PDFBibTeX XMLCite

On properties of solutions for a class of pseudoparabolic equations. (English. Russian original) Zbl 0799.35134

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 359-363 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 781-786 (1992).
MSC:  35K70 35B40 35B65
PDFBibTeX XMLCite

The method of Fischer-Riesz equations in the ill-posed Cauchy problem for systems with injective symbol. (English. Russian original) Zbl 0796.35169

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 354-358 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 776-780 (1992).
MSC:  35R20 35R25 74B05
PDFBibTeX XMLCite

On the question of convergence of a trigonometric Fourier series at a point. (English. Russian original) Zbl 0796.42003

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 349-353 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 770-775 (1992).
MSC:  42A20 42A50
PDFBibTeX XMLCite

Integral operators defined by boundary value problems for quasielliptic equations. (English. Russian original) Zbl 0794.47031

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 343-348 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 765-769 (1992).
PDFBibTeX XMLCite

Sign-definiteness of quadratic forms of the calculus of variations with a power degeneracy. (English. Russian original) Zbl 0810.49001

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 337-342 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 5, 759-764 (1992).
Reviewer: J.Ramik (Ostrava)
MSC:  49J10 42A82 49K10
PDFBibTeX XMLCite

On certain methods of recovering functions of \(n\) variables defined on chaotic nets. (English. Russian original) Zbl 0802.41011

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 324-329 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 4, 605-609 (1992).
MSC:  41A10 41A63
PDFBibTeX XMLCite

The Cauchy problem for an abstract differential equation with fractional derivatives. (English. Russian original) Zbl 0788.34001

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 316-319 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 4, 597-600 (1992).
MSC:  34A12 34G10 26A33
PDFBibTeX XMLCite

Differential equations for functions of several independent variables, and their application. (English. Russian original) Zbl 0795.34032

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 311-315 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 4, 592-596 (1992).
MSC:  34C30 34D20 35A07 34A12 34C20 34D05
PDFBibTeX XMLCite

An analog of a theorem of Keldysh for a multipoint problem of de la Vallée Poussin. (English. Russian original) Zbl 0789.34023

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 307-310 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 4, 587-591 (1992).
MSC:  34B10 34L20
PDFBibTeX XMLCite

On free boundary properties for a class of degenerate parabolic equations of filtration theory. (English. Russian original) Zbl 0799.35133

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 296-300 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 431-435 (1992).
Reviewer: P.Krejčí
MSC:  35K65 35R35 76S05
PDFBibTeX XMLCite

On iteration schemes with noncentered compact approximations. (English. Russian original) Zbl 0796.65096

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 290-295 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 425-430 (1992).
MSC:  65M06 65M12 35L15
PDFBibTeX XMLCite

Invariant tori of invertible systems in the presence of additional even coordinates. (English. Russian original) Zbl 0799.58059

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 286-289 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 421-424 (1992).
Reviewer: B.F.Gray (Sydney)
MSC:  37G99 34C20
PDFBibTeX XMLCite

On a functional calculus for contractions with absolutely continuous spectrum and an operator Carleson measure. (English. Russian original) Zbl 0819.47020

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 282-285 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 417-420 (1992).
Reviewer: V.Wrobel (Kiel)
MSC:  47A60 47A45
PDFBibTeX XMLCite

Removable singularities of CR-functions on generic manifolds. (English. Russian original) Zbl 0792.32009

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 279-281 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 414-416 (1992).
MSC:  32D20 32F10
PDFBibTeX XMLCite

Semigroup varieties with modular lattice of subvarieties. (English. Russian original) Zbl 0809.20051

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 274-278 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 409-413 (1992).
MSC:  20M07 08B15 06C05
PDFBibTeX XMLCite

Coercive properties of nonlinear Schrödinger and Dirac operators. (English. Russian original) Zbl 0796.35152

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 258-263 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 3, 393-398 (1992).
MSC:  35Q55 26D15
PDFBibTeX XMLCite

On the solution of ill-posed problems in locally convex spaces. (English. Russian original) Zbl 0796.34042

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 254-257 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 2, 233-236 (1992).
MSC:  34G10 46A04 46A13
PDFBibTeX XMLCite

On stabilization of a solution of the Cauchy problem for a first-order differential equation in a Banach space. (English. Russian original) Zbl 0796.34040

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 245-247 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 2, 224-226 (1992).
PDFBibTeX XMLCite

Asymptotics of solutions of differential equations with respect to a parameter, and applications. (English. Russian original) Zbl 0799.34054

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 240-244 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 2, 219-223 (1992).
MSC:  34E05 34L10
PDFBibTeX XMLCite

Inequalities of Hardy type on cones in ideal spaces. (English. Russian original) Zbl 0801.26011

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 236-239 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 2, 215-218 (1992).
MSC:  26D15 42B30 46E30
PDFBibTeX XMLCite

On sharp constants in inequalities between \(L_ \infty\)-norms of derivatives on a finite interval. (English. Russian original) Zbl 0798.41019

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 231-235 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 50-53 (1992).
Reviewer: A.Kufner (Praha)
PDFBibTeX XMLCite

Bases with double orthogonality in the Cauchy problem for systems with injective symbol. (English. Russian original) Zbl 0799.35167

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 225-230 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 45-49 (1992).
Reviewer: E.Feireisl (Praha)
MSC:  35N10
PDFBibTeX XMLCite

The integrated family of \(M,N\)-functions. (English. Russian original) Zbl 0796.34041

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 214-219 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 35-39 (1992).
MSC:  34G10 47A50 47D06
PDFBibTeX XMLCite

The asymptotics of the approximation of differentiable functions by a Fourier series. (English. Russian original) Zbl 0789.42003

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 210-213 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 31-34 (1992).
MSC:  42A10 42A50 41A25
PDFBibTeX XMLCite

Some properties of Lipschitz functions in the unit disc and in the unit ball. (English. Russian original) Zbl 0791.30045

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 205-209 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 26-30 (1992).
Reviewer: N.M.Zobin (Haifa)
MSC:  30H05 46A45
PDFBibTeX XMLCite

An approximate functional equation for the zeta-function and a segment of the Euler product over prime numbers. (English. Russian original) Zbl 0791.11040

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 201-204 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 22-25 (1992).
Reviewer: A.Ivić (Beograd)
MSC:  11M06 11M20 11N05
PDFBibTeX XMLCite

The existence of a bifurcation point for a class of nonlinear operators. (English. Russian original) Zbl 0794.58008

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 198-200 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 19-21 (1992).
MSC:  58E07 47J05
PDFBibTeX XMLCite

Inverse problems for Weyl functions, preresolvent and resolvent matrices of Hermitian operators. (English. Russian original) Zbl 1052.47501

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 190-197 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 12-18 (1992).
PDFBibTeX XMLCite

On the behavior of the spectrum of some linear multipoint boundary value problems for ordinary differential equations. The case of an arbitrary number of points. (English. Russian original) Zbl 0789.34021

Russ. Acad. Sci., Dokl., Math. 46, No. 2, 187-189 (1993); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 326, No. 1, 9-11 (1992).
MSC:  34B10 34L05
PDFBibTeX XMLCite

Filter Results by …

all top 3

Main Field