We study a class of nonlinear parabolic equations of the type:b(u)t- div a(x, t, u)▽u + g(u)|▽u|2= f,where the right hand side belongs to L1(Q), b is a st
In this paper, we define the generalized counting functions in the higher dimensional case and give an upper bound of the essential norms of composition operato
In this work, we classify and calculate spectra such as point spectrum, continuous spectrum and residual spectrum over sequences spaces ?∞, c and c0 according