Na1999
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K. Nakanishi. Local wellposedness and illposedness in the critical Besov spaces for semilinear wave equations with quadratic forms. Funk. Ekvac, 42 (1999), 261-279. MathSciNet, arXiv.
K. Nakanishi. Local wellposedness and illposedness in the critical Besov spaces for semilinear wave equations with quadratic forms. Funk. Ekvac, 42 (1999), 261-279. MathSciNet, arXiv.