Sign-changing critical point theory has emerged as a new area of rich research on critical points of a differentiable functional with important applications to nonlinear elliptic PDEs.Key features of this book: (1) Self-contained in-depth treatment of sign-changing critical point theory;
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Sign-changing critical point theory has emerged as a new area of rich research on critical points of a differentiable functional with important applications to nonlinear elliptic PDEs.Key features of this book: (1) Self-contained in-depth treatment of sign-changing critical point theory;
Read Less