Search Results - "Romanov, G. V"

One-Dimensional Inverse Problem for Nonlinear Equations of Electrodynamics by Romanov, V. G.

“…For the system of nonlinear electrodynamics equations, we consider the problem of determining the medium conductivity coefficient multiplying the nonlinearity…”
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Changes of Asphaltenes’ Structural Phase Characteristics in the Process of Conversion of Heavy Oil in the Hydrothermal Catalytic System by Kayukova, G. P, Gubaidullin, A. T, Petrov, S. M, Romanov, G. V, Petrukhina, N. N, Vakhin, A. V

“…The composition of heavy crude oil from the Ashal’cha field (Volga-Ural Basin, Republic of Tatarstan) and the peculiarities of the changes of its asphaltenes’…”
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A Stability Estimate for a Solution to an Inverse Problem for a Nonlinear Hyperbolic Equation by Romanov, V. G.

“…We consider a hyperbolic equation with variable leading part and nonlinearity in the lower-order term. The coefficients of the equation are smooth functions…”
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An Inverse Problem for the Wave Equation with Nonlinear Dumping by Romanov, V. G.

“…We study the inverse problem of recovering a coefficient at the nonlinearity in a second order hyperbolic equation with nonlinear damping. The unknown…”
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An Inverse Problem for the Wave Equationwith Two Nonlinear Terms by Romanov, V G

“…An inverse problem for a second-order hyperbolic equation containing two nonlinear terms is studied. The problem is to reconstruct the coefficients of the…”
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Inverse Problem for Quasilinear Wave Equation by Romanov, V. G.

“…For the wave equation with two nonlinear terms we consider the inverse problem consisting in recovering finitely supported coefficients of the nonlinear terms…”
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Comparative Analysis of the Composition of Carbon-Rich Rocks from Domanik Deposits and the Oil–Water Contact Zone Exemplified by Tatarstan’s Bavly Oilfield by Ganeeva, Yu. M., Yusupova, T. N., Barskaya, E. E., Okhotnikova, E. S., Romanov, G. V.

“…Samples of carbon-rich rocks from domanik deposits and the oil–water contact zone of the Bavly field of the Republic of Tatarstan (Russia), as well as extracts…”
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The composition and thermal properties of waxes in oil asphaltenes by Ganeeva, Yu. M., Yusupova, T. N., Romanov, G. V., Gubaidullin, A. T., Samigullina, A. I.

“…Asphaltenes of four Russian and Kyrgyzstan crude oils were investigated with calorimetry, gas chromatography and X-ray diffraction analysis. It was established…”
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A phaseless inverse problem for electrodynamic equations in the dispersible medium by Romanov, V. G.

“…For electrodynamic equations related to non-conducting dispersible medium we consider the inverse problem of recovering two variable coefficients from a given…”
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On Justification of the Gelfand–Levitan–Krein Method for a Two-Dimensional Inverse Problem by Romanov, V. G.

“…For a hyperbolic equation of the second order, we consider the inverse problem of recovering the coefficient in this equation. We discuss the scheme of…”
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Phaseless Inverse Problems That Use Wave Interference by Romanov, V. G.

“…We consider the inverse problems for differential equations with complex-valued solutions in which the modulus of a solution to the direct problem on some…”
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Phaseless Inverse Problems for Schrödinger, Helmholtz, and Maxwell Equations by Romanov, V. G.

“…A survey of recent research concerning phaseless inverse problems for several differential equations is given. Mainly, the surveyed studies were performed over…”
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A Stability Estimate in the Source Problem for the Radiative Transfer Equation by Romanov, V. G.

“…A stability estimate for the solution of a source problem for the stationary radiative transfer equation is given. It is supposed that the source has an…”
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An Inverse Problem for Electrodynamic Equations with Nonlinear Conductivity by Romanov, V. G.

“…The inverse problem of determining the variable conductivity coefficient in the system of electrodynamic equations with nonlinear conductivity is considered…”
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Change in the Hydrocarbon and Component Compositions of Heavy Crude Ashalchinsk Oil Upon Catalytic Aquathermolysis by Foss, L. E., Kayukova, G. P., Tumanyan, B. P., Petrukhina, N. N., Nikolaev, V. F., Romanov, G. V.

“…A physical model has been developed for the aquathermolysis of heavy crude oil from the Ashalchinsk oil field at 250°, 300°, and 350°C. Nickel and cobalt…”
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A Generalized Gronwall-Bellman Inequality by Romanov, V. G.

“…Under study is the integral inequality that has as kernel a nonnegative polynomial in the powers of the difference of arguments and a large parameter N . We…”
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Inverse Problem of Electrodynamics for Anisotropic Medium: Linear Approximation by Romanov, V. G.

“…For electrodynamic equations with permittivity specified by a symmetric matrix , the inverse problem of determining this matrix from information on solutions…”
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An Inverse Phaseless Problem for Electrodynamic Equations in an Anisotropic Medium by Romanov, V. G.

“…For the system of electrodynamics equations with anisotropic permittivity, the inverse problem of determining the permittivity is studied. It is supposed that…”
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Plane Wave Solutions to the Equations of Electrodynamics in an Anisotropic Medium by Romanov, V. G.

“…Under examination is the system of equations of electrodynamics for a nonconducting nonmagnetic medium with the simplest anisotropy of permittivity. We assume…”
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The problem of recovering the permittivity coefficient from the modulus of the scattered electromagnetic field by Romanov, V. G.

“…Under consideration is the stationary system of equations of electrodynamics relating to a nonmagnetic nonconducting medium. We study the problem of recovering…”
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