International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/998 2020 2020 Hyers-Ulam-Rassias Stability for Functional Equation in Neutrosophic Normed Spaces Alagappa University, Karaikudi, Tamil Nadu, India M. Jeyaraman Department of Mathematics, Nachiappa Swamigal Arts & Science College, Karaikudi. Affiliated to Alagappa University, Karaikudi, Tamilnadu, India. A.N. Mangayarkkarasi Government Arts College for Women, Sivagangai. Affiliated to Alagappa University, Karaikudi, Tamilnadu, India. V. .. PG and Research Department of Mathematics, The Madura College, Madurai 625011, Tamilnadu, India R. Pandiselvi In Neutrosophic Normed spaces, we investigate a unique quadratic function and a unique additive quadratic function of the Hyers-Ulam-Rassias stability for the functional equation  which is said to be a functional equation associated with inner products   space. 2022 2022 127 143 10.54216/IJNS.180111 https://www.americaspg.com/articleinfo/21/show/998