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A note on the large time asymptotics for a system of Klein-Gordon equations
We study the asymptotic behavior of the solution in the large time for the system {(□ + m 2 1 )u 1 = 0 (□ + m 2 2 )u 2 = 0 (□ + m 2 3 )u 3 = u 1 u 2 in two space dimensions. We …