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Characterization of functions whose forward differences are exponential polynomials

J. M. Almira — 2017

Commentationes Mathematicae Universitatis Carolinae

Given ${h_{1}, \dots, h_{t}}$ a finite subset of $ℝ^{d}$ , we study the continuous complex valued functions and the Schwartz complex valued distributions $f$ defined on $ℝ^{d}$ with the property that the forward differences $Δ_{h_{k}}^{m_{k}} f$ are (in distributional sense) continuous exponential polynomials for some natural numbers $m_{1}, \dots, m_{t}$ .

Una demostración constructiva de un homeomorfismo entre P y SO(3).

J. M. Almira; P. D. González — 2001

Gaceta de la Real Sociedad Matemática Española

Sobre aproximación con polinomios de coeficientes enteros.

J. M. Almira; N. Del Toro — 2003

Gaceta de la Real Sociedad Matemática Española

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Characterization of functions whose forward differences are exponential polynomials

Una demostración constructiva de un homeomorfismo entre P y SO(3).

Sobre aproximación con polinomios de coeficientes enteros.