On some orthogonal systems of functions
A. C. Zaanen (1940)
Compositio Mathematica
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A. C. Zaanen (1940)
Compositio Mathematica
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S. D. Wray (1982)
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We establish a Carleman type inequality for the subelliptic operator in , , where , . As a consequence, we show that has the strong unique continuation property at points of the degeneracy manifold if the potential is locally in certain spaces.
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