We present a realization for some -functionals associated with Jacobi expansions in terms of generalized Jacobi-Weierstrass operators. Fractional powers of the operators as well as results concerning simultaneous approximation and Nikolskii-Stechkin type inequalities are also considered.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6022552 | PMC |
http://dx.doi.org/10.1186/s13660-018-1747-2 | DOI Listing |
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