A multiple set version of the 3k-3 theorem.
Yahya Ould Hamidoune, Alain Plagne (2005)
Revista Matemática Iberoamericana
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Yahya Ould Hamidoune, Alain Plagne (2005)
Revista Matemática Iberoamericana
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P. Batchourine, C. Fefferman (2007)
Revista Matemática Iberoamericana
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Camil Muscalu, Jill Pipher, Terence Tao, Christoph Thiele (2006)
Revista Matemática Iberoamericana
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We prove that classical Coifman-Meyer theorem holds on any polidisc T or arbitrary dimension d ≥ 1.
Philippe Laurençot, Stéphane Mischler (2002)
Revista Matemática Iberoamericana
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Charles Fefferman (2005)
Revista Matemática Iberoamericana
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Suppose that, for each point x in a given subset E ⊂ R, we are given an m-jet f(x) and a convex, symmetric set σ(x) of m-jets at x. We ask whether there exist a function F ∈ C(R) and a finite constant M, such that the m-jet of F at x belongs to f(x) + Mσ(x) for all x ∈ E. We give a necessary and sufficient condition for the existence of such F, M, provided each σ(x) satisfies a condition that we call "Whitnet w-convexity".
Giovanna Citti, Giuseppe Tomassini (2004)
Revista Matemática Iberoamericana
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Jean-Philippe Anker, Philippe Bougerol, Thierry Jeulin (2002)
Revista Matemática Iberoamericana
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María J. Carro, Joaquim Martín (2004)
Revista Matemática Iberoamericana
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Cho-Ho Chu, Ngai-Ching Wong (2004)
Revista Matemática Iberoamericana
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Herbert Koch, Winfried Sickel (2002)
Revista Matemática Iberoamericana
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