1995•Sbornik MathematicsOpen access

The Cauchy problem in classes of increasing functions for the equation of filtration with convection

Alexander L'vovich Gladkov

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Abstract

We consider the Cauchy problem with a non-negative continuous initial function for the equation ut=(um)xx+c(un)x where m > l, m≥n, n≥1 and c is a positive constant. We prove a number of existence and uniqueness theorems for generalized solutions increasing at infinity for this Cauchy problem; we also investigate the behaviour of these solutions for large values of the time.

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We consider the Cauchy problem with a non-negative continuous initial function for the equation ut=(um)xx+c(un)x where m > l, m≥n, n≥1 and c is a positive constant. We prove a number of existence and uniqueness theorems for generalized solutions increasing at infinity for this Cauchy problem; we also investigate the behaviour of these solutions for large values of the time.

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Available abstract

We consider the Cauchy problem with a non-negative continuous initial function for the equation ut=(um)xx+c(un)x where m > l, m≥n, n≥1 and c is a positive constant. We prove a number of existence and uniqueness theorems for generalized solutions increasing at infinity for this Cauchy problem; we also investigate the behaviour of these solutions for large values of the time.

Key concepts: Uniqueness, Mathematics, Initial value problem, Cauchy problem, Filtration (mathematics), Constant (computer programming), Infinity, Cauchy distribution

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