Israfilov, Daniyal M.; Testici, Ahmet Approximation problems in the Lebesgue spaces with variable exponent. (English) Zbl 1395.46023 J. Math. Anal. Appl. 459, No. 1, 112-123 (2018). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 46E30 41A10 × Cite Format Result Cite Review PDF Full Text: DOI
Potapov, M. K.; Berisha, F. M. Direct and inverse theorems of approximation theory for a generalized modulus of smoothness. (English) Zbl 0957.41009 Anal. Math. 25, No. 3, 187-203 (1999). Reviewer: Ion Badea (Craïova) MSC: 41A25 × Cite Format Result Cite Review PDF Full Text: DOI arXiv