Abstract
Concerning the uniqueness in the Cauchy problem at doubly characteristic points, discrete conditions on lower order terms are known. In this paper, uniqueness is studied when those conditions are not satisfied.
Citation
Katsuju Igari. "Note on discrete phenomena in uniqueness in doubly characteristic Cauchy problems." J. Math. Kyoto Univ. 45 (4) 831 - 839, 2005. https://doi.org/10.1215/kjm/1250281659
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