Can anybody tell me what non-linear analysis is? I have no idea. I am not getting wikipedia page, may be because of my bad searching habit. I am seeing a lot of research materials published in different mathematics journals.
I want to know the followings
Idea about the subject.
The other fields of mathematics which are required to starting study nonlinear analysis.
Application of nonlinear analysis in different brunches of science as well as mathematics.
Books reference to this subject.
I am going to apply in a PhD programme in some Indian University who are looking for scholars who are interested to work in this field.
Thank you very much.