Concentration and flatness properties of the singular set of bisected balls
Francesco Maddalena, Sergio Solimini (2001)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Francesco Maddalena, Sergio Solimini (2001)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Beata Randrianantoanina (2004)
Collectanea Mathematica
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We give an example of a uniform quotient map from R to R which has non-locally connected level sets.
Der-Chen Chang, Steven Krantz (1991)
Colloquium Mathematicae
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Steve Hofmann, Alan McIntosh (2002)
Publicacions Matemàtiques
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We solve, in two dimensions, the "square root problem of Kato". That is, for L ≡ -div (A(x)∇), where A(x) is a 2 x 2 accretive matrix of bounded measurable complex coefficients, we prove that L1/2: L1 2(R2) → L2(R2). [Proceedings of the 6th International Conference on Harmonic Analysis and Partial Differential Equations, El Escorial...
Nik Weaver (1995)
Studia Mathematica
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We abstractly characterize Lipschitz spaces in terms of having a lattice-complete unit ball and a separating family of pure normal states. We then formulate a notion of "measurable metric space" and characterize the corresponding Lipschitz spaces in terms of having a lattice complete unit ball and a separating family of normal states.
R. Banuelos, C. N. Moore (1991)
Annales de l'institut Fourier
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We prove good- inequalities for the area integral, the nontangential maximal function, and the maximal density of the area integral. This answers a question raised by R. F. Gundy. We also prove a Kesten type law of the iterated logarithm for harmonic functions. Our Theorems 1 and 2 are for Lipschitz domains. However, all our results are new even in the case of .
Maria Giovanna Mora, Massimiliano Morini (2000)
Rendiconti del Seminario Matematico della Università di Padova
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F. A. Lops, F Maddalena, S Solimini (2001)
Annales de l'I.H.P. Analyse non linéaire
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