Strong instability of standing waves for a system of nonlinear Klein-Gordon equations with quadratic interaction (2509.06583v1)

Published 8 Sep 2025 in math.AP

Abstract: We consider a system of nonlinear Klein-Gordon equations with quadratic interaction in two and three space dimensions. The strong instability of standing wave solutions is studied for the system without assuming the mass resonance condition.

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Authors (1)

Masahito Ohta

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