Sufficient conditions of local solvability for partial differential operators on spaces of Colombeau type.
Garetto, Claudia (2009)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Garetto, Claudia (2009)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Garetto, Claudia, Gramchev, Todor, Oberguggenberger, Michael (2005)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Bekkara, Samir, Messirdi, Bekkai, Senoussaoui, Abderrahmane (2009)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Nguyen, Tu (2008)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Yakubov, Sasun (2002)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Pecher, Hartmut (2006)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Couchouron, Jean-François, Dellacherie, Claude, Grandcolas, Michel (2001)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Nouar, Ahmed (2007)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Fang, Yung-fu (2004)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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George A. Anastassiou, Heinz H. Gonska (1995)
Annales Polonici Mathematici
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In recent papers the authors studied global smoothness preservation by certain univariate and multivariate linear operators over compact domains. Here the domain is ℝ. A very general positive linear integral type operator is introduced through a convolution-like iteration of another general positive linear operator with a scaling type function. For it sufficient conditions are given for shift invariance, preservation of global smoothness, convergence to the unit with rates, shape preserving...
Hernández M., Eduardo (2001)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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El Haial, Abdelillah, Labbas, Rabah (2001)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Oh, Tadahiro (2009)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Kamoun, Lotfi (2005)
Fractional Calculus and Applied Analysis
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2000 Mathematics Subject Classification: 42B10, 43A32. In this paper we take the strip KL = [0, +∞[×[−Lπ, Lπ], where L is a positive integer. We consider, for a nonnegative real number α, two partial differential operators D and Dα on ]0, +∞[×] − Lπ, Lπ[. We associate a generalized Fourier transform Fα to the operators D and Dα. For this transform Fα, we establish an Lp − Lq − version of the Morgan's theorem under the assumption 1 ≤ p, q ≤ +∞.