Abstract

Sufficient conditions for the global existence of a strong solution of the equation u t ( t, x) = ∫ t 0 k( t − s) σ( u x ( s, x)) x ds + f( t, x) are given. The kernel k satisfies R k̂( z) ≥ κ | I k̂( z) | and σ is increasing with sup {σ′ ( p) } < 1 + 2κ([formula] + κ).

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