On the relationship between difference and projection-difference methods
N. A. Strelkov (1990)
Banach Center Publications
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N. A. Strelkov (1990)
Banach Center Publications
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Galakhov, E. (1997)
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Ryotaro Sato (1976)
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Detlef Müller, Zhenqiu Zhang (2001)
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In [8], we studied the problem of local solvability of complex coefficient second order left-invariant differential operators on the Heisenberg group ℍₙ, whose principal parts are "positive combinations of generalized and degenerate generalized sub-Laplacians", and which are homogeneous under the Heisenberg dilations. In this note, we shall consider the same class of operators, but in the presence of left invariant lower order terms, and shall discuss local solvability for these operators...
Mejjaoli, Hatem (2012)
Serdica Mathematical Journal
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2010 Mathematics Subject Classification: Primary 35L05. Secondary 46E35, 35J25, 22E30. In this paper we define the homogeneous Besov spaces associated with the Dunkl operators on R^d, and we give a complete analysis on these spaces and same applications.
M. Budimčević, B. Stanković (1971)
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