Some non-linear evolution equations
Some non-linear evolution equations
In this paper we consider evolution equations of the form (i) A(t)u(f) + u"({) + ^(t; u(0, u f (t))=f(t), o^t^T (u'= duldt, u" = d^-ii/di 2 ), where each A(t) is an unbounded formally self-adjoint ( i ) linear operator, which is in practice an elliptic partial differential operator …