Existence Theorems for Some Non-Linear Equations of Evolution

Clements, John C.

Canadian journal of mathematics, Tome 22 (1970) no. 4, pp. 726-745

Résumé

In recent years considerable attention has been focused on non-linear hyperbolic differential equations with the object of establishing the existence of global solutions. It is our aim here to establish the existence of weak solutions of boundary value problems for non-linear equations of the form (1-1) where d is a real constant called the damping coefficient, u(t) is a vector-valued function defined on a subinterval of the real line into a space of complex-valued functions u(x) defined on a bounded domain Ω in the real Euclidean space EN of N dimensions, ut (t) ≡ du(t)/dt, and A(t) is the family of partial differential operators of order 2m (m = 1, 2, ...) on Ω given in generalized divergence form by (1-2) with

Détail

DOI : 10.4153/CJM-1970-083-2

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