Weight inequalities for singular integrals defined on spaces of homogeneous and nonhomogeneous type.
Edmunds, D.E., Kokilashvili, V., Meskhi, A. (2001)
Georgian Mathematical Journal
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Edmunds, D.E., Kokilashvili, V., Meskhi, A. (2001)
Georgian Mathematical Journal
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Kokilashvili, V., Meskhi, A. (2001)
Georgian Mathematical Journal
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Alsulami, Sadu M., Alsulami, Hamed M., Khan, Liaqat Ali (2009)
Acta Universitatis Apulensis. Mathematics - Informatics
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Stepanov, V.D., Ushakova, E.P. (2010)
Banach Journal of Mathematical Analysis [electronic only]
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Rakotondratsimba, Y. (1998)
Georgian Mathematical Journal
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Marek Ptak (1995)
Annales Polonici Mathematici
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We present a model for two doubly commuting operator weighted shifts. We also investigate general pairs of operator weighted shifts. The above model generalizes the model for two doubly commuting shifts. WOT-closed algebras for such pairs are described. We also deal with reflexivity for such pairs assuming invertibility of operator weights and a condition on the joint point spectrum.
Genebashvili, I., Gogatishvili, A., Kokilashvili, V. (1996)
Georgian Mathematical Journal
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Nils Dencker (2003)
Journées équations aux dérivées partielles
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We prove the Nirenberg-Treves conjecture : that for principal type pseudo-differential operators local solvability is equivalent to condition (). This condition rules out certain sign changes of the imaginary part of the principal symbol along the bicharacteristics of the real part. We obtain local solvability by proving a localizable estimate for the adjoint operator with a loss of two derivatives (compared with the elliptic case). The proof involves a new metric in the Weyl (or Beals-Fefferman)...
Jabbarzadeh, M.R. (2010)
Banach Journal of Mathematical Analysis [electronic only]
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Hans Jarchow (2004)
Extracta Mathematicae
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Baskakov, A.G., Pastukhov, A.I. (2001)
Sibirskij Matematicheskij Zhurnal
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Shanzhen Lu, Dachun Yang (1993)
Colloquium Mathematicae
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