In this paper,we define the shared value of an algebroid function and its derivative on its Riemann surface.By considering the relationship between the shared v
In this article, we concern the motion of relativistic membranes and null membranes in the Reissner-Nordstrm space-time. The equation of relativistic membrane
In this article, the approximate amenability of semigroup algebra 1(S) is investigated, where S is a uniformly locally finite inverse semigroup. Indeed, we show