We consider the parabolic equation with variable coefficients k(x)uxx = ui, O,x ≤ 1, t ≥ 0, where 0 < a ≤ k(x) < +∞, the solution on the boundary x = O is a
Given two Banach spaces E, F, let B(E, F) be the set of all bounded linear oper-ators from E into F, ∑r the set of all operators of finite rank r in B(E, F), a
In this paper,we first introduce a new class of generalized accretive operators named(H,η)-accretive in Banach space.By studying the properties of(H,η)-accret