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Browsing by Author "Enríquez, Francisco"
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A characterization of structural nikol'skiî- besov spaces using fractional derivatives
The Nikol'skiî-Besov spaces Bapq(Rn), 1 0, are defined in terms of modulus of continuity and they are characterized using the partial derivatives of the Poisson integrals. In this work we show a characterizationof the ...Universidad Nacional de Colombia Revistas electrónicas UN Boletín de Matemáticas. -
Description of the nikolskii-besov class decreasing its smoothness parameter using weak fractional derivatives
The Nikolskii-Besov spaces Bpqα(Rn)≡ Bpqα, 1≤ p, q≤∞, α and gt;0, recently were described using the Caputo's fractional derivative. Using the concept of weak fractional derivative, in this paper we reduces the characterization ...Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.
