Inverse and Ill-Posed Problems Series, Coefficient Inverse Problems for Parabolic Type Equations and Their Application P.G. Danilaev

ISBN: 9783110364019

Published: June 18th 2001

Hardcover

115 pages


Description

Inverse and Ill-Posed Problems Series, Coefficient Inverse Problems for Parabolic Type Equations and Their Application  by  P.G. Danilaev

Inverse and Ill-Posed Problems Series, Coefficient Inverse Problems for Parabolic Type Equations and Their Application by P.G. Danilaev
June 18th 2001 | Hardcover | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | 115 pages | ISBN: 9783110364019 | 10.57 Mb

As a rule, many practical problems are studied in a situation when the input data are incomplete. For example, this is the case for a parabolic partial differential equation describing the non-stationary physical process of heat and mass transfer ifMoreAs a rule, many practical problems are studied in a situation when the input data are incomplete. For example, this is the case for a parabolic partial differential equation describing the non-stationary physical process of heat and mass transfer if it contains the unknown thermal conductivity coefficient.

Such situations arising in physical problems motivated the appearance of the present work. In this monographthe author considers numerical solutions of the quasi-inversion problems, to which the solution of the original coefficient inverse problems are reduced. Underground fluid dynamics is taken as a field of practical use of coefficient inverse problems. The significance of these problems for this application domain consists in the possibility to determine the physical fields of parameters that characterize the filtration properties of porous media (oil strata). This provides the possibility of predicting the conditions of oil-field development and the effects of the exploitation.

The research carried out by the author showed that the quasi-inversion method can be applied also for solution of interior coefficient inverse problems by reducing them to the problem of continuation of a solution to a parabolic equation. This reduction is based on the results of the proofs of the uniqueness theorems for solutions of the corresponding coefficient inverse problems.



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