Do you know a reference where a Korovkin-type theorem is proved or mentioned for the positive real axis?

11 March 2015 1 9K Report

Korovkin theorem is one of the simplest criteria for proving density theorems on [a,b]. A generalization of this is there for the positive real axis. If you know then please tell me the references where I can find that.

G. Rajiv

I found a reference. It is a book by F.Altomare & M. Campiti, Section 5.3.9.

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