This book presents fixed point theory, one of the crucial tools in applied mathematics, functional analysis, and topology, which has been used to solve distinct real-world problems in computer science, engineering, and physics. The authors begin with an overview of the extension of metric spaces. Readers are introduced to general fixed-point theorems while comparing and contrasting important and insignificant metric spaces. The book is intended to be self-contained and serves as a unique resource for researchers in various disciplines.

In addition, this book:

• Introduces general fixed-point theorems and presents recent advances in metric fixed point theory
• Discusses useful metric extensions and criticizes insignificant generalizations of metric spaces
• Consolidates the basic ideas of fixed-point theory in the setting of various metric spaces
• Presents fixed point theory as a crucial tool in applied mathematics, functional analysis, and topology to solve real-world problems.