Doubly-nonlinear problems

Abstract

In this chapter we touch upon some selected problems not mentioned so far. This concerns situations with the time-derivative ${\textstyle{d \over {dt}}} u$ appearing nonlinearly (Section 11.1) or acting on a nonlinearity (Section 11.2), in the former case also in combination with the second time-derivative $\textstyle{d^{2} \over {dt}^{2}} u$ involved linearly (Section 11.3).