International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/3115 2020 2020 Direct and converse approximation theorems in neutrosophic L_(δ,p) (U) space Department of Mathematics, College of Education for pure science, University of Anbar, Iraq Alaa Alaa Middle Technical University, Technical Institute of Baquba, Diyala, Iraq Mohammed A. Hilal A neutrosophic is a strong framework to characterize novel mathematical structures. This framework is more suitable and flexible set side by side to fuzzy sets and intuitionistic fuzzy sets. In this work, we focus on some famous mathematical spaces like Ls,p (u)when we work on displaying a feature the immediate and contrary theorems of unrestrained functions in the spaceLs,p (u)are considered. Also, some characteristics of modification symmetric and modulus of neutrosophic smoothness have been discussed. Moreover, the identical among approximate tools such as the neutrosophic K-functional and neutrosophic modulus of softness. 2025 2025 57 63 10.54216/IJNS.250206 https://www.americaspg.com/articleinfo/21/show/3115