Real valued Bsc - continuous functions rings

The main goal of this present work is to introduce new class of continuous functions called Bs(c) - continuous and use this functions to investigate the characterize of all real valued Bs(c) - continuous functions ring on topological space (M, T). Basic properties of Bs(c) - continuous and some significant theorems that related with this type of continuity functions are introduced. Moreover, we will show that the ring of all real valued Bs(c) - continuous functions C-B(M) is isomorphic with C(M-B0) where M-B0 is B-s(0)-dimensional space. The quantity demand and investment in research and development, while the other model focuses on a more realistic relationship between the quantit y demand and the price.