Abstract
Necessary and sufficient conditions for compactness of sets in Banach space valued Besov class B s p,q (Ω;E) is derived. The embedding theorems in Besov-Lions type spaces B l,sp,q (Ω;E 0, E) are studied, where E 0, E are two Banach spaces and E 0 ⊂ E. The most regular class of interpolation space E α , between E 0 and E are found such that the mixed differential operator D α is bounded and compact from B l,s p,q (Ω;E 0,E) to B s p,q (Ω;E α ) and Ehrling-Nirenberg-Gagliardo type sharp estimates established. By using these results the separability of differential operators with variable coefficients and the maximal B-regularity of parabolic Cauchy problem are obtained. In applications, the infinite systems of the elliptic partial differential equations and parabolic Cauchy problems are studied.
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Shakhmurov, V.B. Compact embedding in Besov spaces and B-separable elleptic operators. Sci. China Math. 53, 1067–1084 (2010). https://doi.org/10.1007/s11425-009-0161-0
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DOI: https://doi.org/10.1007/s11425-009-0161-0
Keywords
- embedding theorems
- Banach-valued function spaces
- differential-operator equations
- maximal B-regularity
- operator-valued Fourier multipliers
- interpolation of Banach spaces
- abstract parabolic Cauchy problem