Contribution à la théorie des pseudo-objets géométriques
E. Siwek, A. Zajtz (1967)
Annales Polonici Mathematici
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E. Siwek, A. Zajtz (1967)
Annales Polonici Mathematici
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R. Rivet (1972)
Publications mathématiques et informatique de Rennes
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Jean-François Méla (1971)
Mémoires de la Société Mathématique de France
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(1872)
Bulletin des Sciences Mathématiques et Astronomiques
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Ryuichi Ishimura (2006)
Annales Polonici Mathematici
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We introduce the notion of pseudo-differential operators defined at a point and we establish a canonical one-to-one correspondence between such an operator and its symbol. We also prove the invertibility theorem for special type operators.
Henri Cartan (1935)
Compositio Mathematica
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Henri Milloux (1937)
Bulletin de la Société Mathématique de France
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Michel Mendès France (1962-1963)
Séminaire Delange-Pisot-Poitou. Théorie des nombres
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Fernand Pelletier (1986-1987)
Séminaire de théorie spectrale et géométrie
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Gourdin, D., Kamoun, H., Ben Khalifa, O. (2008)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 35C15, 35D05, 35D10, 35S10, 35S99. We give here examples of equations of type (1) ∂tt2 y -p(t, Dx) y = 0, where p is a singular pseudo-differential operator with regular global solutions when the Cauchy data are regular, t ∈ R, x ∈ R5.