Mathematical Inequalities & Applications · Volume 14, Issue 2 Simultaneous and converse approximation theorems in weighted Lebesgue spaces 14-29 Pages 359-371 DOI 10.7153/mia-14-29 Downloads Short PDF Full PDF PNG Authors Yunus Emre Yıldırır Daniyal M. Israfilov Keywords Best approximation weighted Lebesgue space mean modulus of smoothness fractional derivative Subject classes 41A10 42A10