This article is cited in 20 papers

Partial Differential Equations

On the positivity of continuous and discrete differentiation and integration operators that are very important in fractional calculus and in the theory of equations of mixed type

A. M. Nakhushev

Institution of Applied Mathematics and Automation, Nal'chik

UDC: 517.983:517.956.6

Received: 28.03.1997

 English version: Differential Equations, 1998, 34:1, 103–112

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