Levi's parametrix for some sub-elliptic non-divergence form operators.
Bonfiglioli, Andrea, Lanconelli, Ermanno, Uguzzoni, Francesco (2003)
Electronic Research Announcements of the American Mathematical Society [electronic only]
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Bonfiglioli, Andrea, Lanconelli, Ermanno, Uguzzoni, Francesco (2003)
Electronic Research Announcements of the American Mathematical Society [electronic only]
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Grzegorz Łysik, Paweł M. Wójcicki (2014)
Annales Polonici Mathematici
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We give a characterization of constant coefficients elliptic operators in terms of estimates of their iterations on smooth functions.
Annalisa Menegus, Giuseppe Olivi (1976)
Rendiconti del Seminario Matematico della Università di Padova
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Nazaikinskii, V.E., Sternin, B.Yu. (2006)
Abstract and Applied Analysis
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Bernhelm Booss, Bert Schulze (1983)
Banach Center Publications
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Ewa Ligocka (2002)
Colloquium Mathematicae
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We recall an old result of B. Dittmar. This result permits us to obtain an existence theorem for the Beltrami equation and some other results as a direct consequence of Moser's classical estimates for elliptic operators.
C. Robin Graham (1984)
Mathematische Zeitschrift
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Qihong Fan, M.W. Wong (1997)
Forum mathematicum
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Tamar Burak (1968)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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K. I. Iordanidis (1971)
Δελτίο της Ελληνικής Μαθηματικής Εταιρίας
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Devdariani, G. (2000)
Bulletin of TICMI
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Nazarov, A.I. (2004)
Journal of Mathematical Sciences (New York)
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