In this work, we prove the existence of global (in time) small data solutions for wave equations with two dissipative terms and with power nonlinearity vertical bar u vertical bar(p) or nonlinearity of derivative type vertical bar u(t)vertical bar(p), in any space dimension n. 1, for supercritical powers p > (p) over bar. The presence of two dissipative terms strongly influences the nature of the problem, allowing us to derive L-r - L-q long time decay estimates for the solution in the full range 1 <= r <= q <= infinity. The optimality of the critical exponents is guaranteed by a nonexistence result for subcritical powers p < <(p)over bar>.

Global small data solutions for semilinear waves with two dissipative terms / Chen, Wenhui; D'Abbicco, Marcello; Girardi, Giovanni. - In: ANNALI DI MATEMATICA PURA ED APPLICATA. - ISSN 0373-3114. - 201:2(2022), pp. 529-560. [10.1007/s10231-021-01128-z]

Global small data solutions for semilinear waves with two dissipative terms

Giovanni Girardi
2022-01-01

Abstract

In this work, we prove the existence of global (in time) small data solutions for wave equations with two dissipative terms and with power nonlinearity vertical bar u vertical bar(p) or nonlinearity of derivative type vertical bar u(t)vertical bar(p), in any space dimension n. 1, for supercritical powers p > (p) over bar. The presence of two dissipative terms strongly influences the nature of the problem, allowing us to derive L-r - L-q long time decay estimates for the solution in the full range 1 <= r <= q <= infinity. The optimality of the critical exponents is guaranteed by a nonexistence result for subcritical powers p < <(p)over bar>.
2022
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/314607
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