‎It is shown that for a capable group $G,$ the index of the center is bounded above by the function‎

‎$|G'|^{2log_{2}|G'|}$‎. ‎In this talk‎, ‎we intend to determine the sufficient conditions for capability of group ...

We present a new approach to find exact solutions for cosmological models. By requiring the existence of

a symmetry transformation vector for the equations of motion of the given cosmological model (without

using ...

Abstract: In this study, the authors obtain a general and new achievable rate region and some certain capacity theorems for multiple-access relay channel (MARC), using partial decode-and-forward (PDF) strategy at the relay, superposition coding...