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Zbl 1033.35160
Gorenflo, Rudolf; Luchko, Yurii F.; Umarov, Sabir R.
On the Cauchy and multi-point problems for partial pseudo-differential equations of fractional order.
(English)
[J] Fract. Calc. Appl. Anal. 3, No. 3, 249-275 (2000). ISSN 1311-0454; ISSN 1314-2224/e

Summary: This paper is devoted to the Cauchy and multi-point value problems for partial pseudo-differential equations of fractional order. The used pseudo-differential operators are associated with the symbols which may have singularities. The solvability theorems for these problems in the space $\Psi_{G,p}(\bbfR^n)$, $1< p< \infty$, of functions in $L_p$ whose Fourier transforms are compactly supported in a domain $G\subset \bbfR^n$ and in its dual space $\Psi_{-G,q}(\bbfR^n)$, $q=p/(p- 1)$, are proved. The representations of the solutions in terms of pseudo-differential operators are constructed. With the help of these representations some of properties of solutions are proved. The obtained results are then used to get solvability theorems in the Sobolev spaces $H^s(\bbfR^n)$, $s\in\bbfR$.
MSC 2000:
*35S10 Initial value problems for pseudodifferential operators
26A33 Fractional derivatives and integrals (real functions)
35S15 Boundary value problems for pseudodifferential operators
45K05 Integro-partial differential equations
47G30 Pseudodifferential operators

Keywords: Cauchy problem; multi-point value problem; Caputo fractional derivative; Mittag-Leffler function; fractional diffusion-wave equation

Cited in: Zbl 1111.35145

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