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Found 85 Documents (Results 1–85)

One class of nonlinear operator equations with nonselfadjoint right sides. (English. Russian original) Zbl 0756.47035

J. Sov. Math. 59, No. 1, 635-638 (1992); translation from Teor. Funkts., Funkts. Anal. Prilozh. 55, 74-78 (1991).
MSC:  47G20 47A50
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Constructive method for mapping nonlinear systems onto linear systems. (English. Russian original) Zbl 0755.34007

J. Sov. Math. 59, No. 1, 631-635 (1992); translation from Teor. Funkts., Funkts. Anal. Prilozh. 55, 68-74 (1991).
MSC:  34A25 34A34 93B18
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High order nonlinear parabolic equations. (English. Russian original) Zbl 0734.35044

J. Sov. Math. 56, No. 4, 2557-2607 (1991); translation from Itogi Nauki Tekh., Ser. Sovrem. Probl. Mat., Noveishie Dostizh. 37, 89-166 (1990).
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Higher order nonlinear elliptic equations. (English. Russian original) Zbl 0728.35040

J. Sov. Math. 56, No. 4, 2505-2557 (1991); translation from Itogi Nauki Tekh., Ser. Sovrem. Probl. Mat., Noveishie Dostizh. 37, 3-87 (1990).
Reviewer: M.Jung (Chemnitz)
MSC:  35J65 35-02 35J40 47H05 35D05
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Semigroups of operators, cosine operator functions, and linear differential equations. (English. Russian original) Zbl 0748.47038

J. Sov. Math. 54, No. 4, 1042-1129 (1991); translation from Itogi Nauki Tekh., Ser. Mat. Anal. 28, 87-202 (1990).
MSC:  47D06 47D09 34G10
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Description of self-adjoint extensions of differential operators of arbitrary order on an infinite interval in the absolutely indefinite case. (English. Russian original) Zbl 0715.34111

J. Sov. Math. 48, No. 3, 337-345 (1990); translation from Teor. Funkts., Funkts. Anal. Prilozh. 44, 112-122 (1985).
MSC:  34G10 47E05 34L05
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Expansion in the eigenfunctions of the Schrödinger equation with a potential having a periodic asymptotic behavior. (English. Russian original) Zbl 0697.47053

J. Sov. Math. 49, No. 6, 1237-1241 (1990); translation from Teor. Funkts., Funkts. Anal. Prilozh. 50, 3-8 (1988).
Reviewer: P.Jonas
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The selfadjointness of elliptic operators and energy type estimates in all of \(R^ n\). I: The second order. (English. Russian original) Zbl 0783.47033

J. Sov. Math. 58, No. 4, 295-305 (1992); translation from Teor. Funkts., Funkts. Anal. Prilozh. 54, 3-16 (1990).
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Lyapunov exponents, symmetric spaces, and a multiplicative ergodic theorem for semisimple Lie groups. (English. Russian original) Zbl 0696.22012

J. Sov. Math. 47, No. 2, 2387-2398 (1989); translation from Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 164, 30-46 (1987).
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Sufficient conditions for time optimal heating of rigid bodies by internal heat sources. (English. Russian original) Zbl 0793.73004

J. Sov. Math. 65, No. 6, 1971-1975 (1993); translation from Mat. Metody Fiz.-Mekh. Polya 25, 56-60 (1987).
MSC:  74A15 49K20 74P99 74B10 80A20
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A modification of Newton’s method to solve the Dirichlet problem for the equation \(\Delta u=f(x,u)\). (English. Russian original) Zbl 0784.65088

J. Sov. Math. 63, No. 4, 424-426 (1993); translation from Vychisl. Prikl. Mat., Kiev 61, 27-30 (1987).
MSC:  65N99 35J65
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Boundary operators and a certain variant of the method of discrete vortices in the Neumann problem. (English. Russian original) Zbl 0685.47039

J. Sov. Math. 48, No. 2, 234-240 (1990); translation from Teor. Funkts., Funkts. Anal. Prilozh. 43, 136-143 (1985).
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Reflection of space-time ray amplitudes from moving boundaries. (English) Zbl 0572.73032

J. Sov. Math. 30, 2410-2420 (1985); translation from Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 128, 72-88 (1983).
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Solution of the Helmholtz equation with complex-valued coefficients in open regions. (English. Russian original) Zbl 0741.65079

J. Sov. Math. 58, No. 1, 12-16 (1992); translation from Vychisl. Prikl. Mat., Kiev 55, 16-21 (1985).
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Algebras with general commutation relations and their applications. II. Unitary-nonlinear operator equations. (English. Russian original) Zbl 0482.58029

J. Sov. Math. 15, 273-368 (1981); translation from Itogi Nauki Tekh., Ser. Sovrem. Probl. Mat. 13, 145-267 (1979).
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