23 resultados para Euler Differential Operator
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Sufficient conditions for the existence of Lp(k)-solutions of linear nonhomogeneous impulsive differential equations with unbounded linear operator are found. An example of the theory of the linear nonhomogeneous partial impulsive differential equations of parabolic type is given.
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The general ordinary quasi-differential expression M of n-th order with complex coefficients and its formal adjoint M + are considered over a regoin (a, b) on the real line, −∞ ≤ a < b ≤ ∞, on which the operator may have a finite number of singular points. By considering M over various subintervals on which singularities occur only at the ends, restrictions of the maximal operator generated by M in L2|w (a, b) which are regularly solvable with respect to the minimal operators T0 (M ) and T0 (M + ). In addition to direct sums of regularly solvable operators defined on the separate subintervals, there are other regularly solvable restrications of the maximal operator which involve linking the various intervals together in interface like style.
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2000 Mathematics Subject Classification: 34K99, 44A15, 44A35, 42A75, 42A63
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2000 Mathematics Subject Classification: 26A33, 33C60, 44A15, 35K55
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Mathematics Subject Classification: 26A33; 70H03, 70H25, 70S05; 49S05
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Toric coordinates and toric vector field have been introduced in [2]. Let A be an arbitrary vector field. We obtain formulae for the divA, rotA and the Laplace operator in toric coordinates.
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MSC 2010: 26A33, 44A45, 44A40, 65J10
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2000 Mathematics Subject Classification: 30C45