An introduction to exotic 4-manifolds
Dean Bodenham

TL;DR
This paper provides an accessible introduction to the construction of small exotic 4-manifolds, including detailed exposition of existing methods, aimed at graduate students without presenting new research results.
Contribution
It offers a comprehensive, beginner-friendly overview of exotic 4-manifold constructions, including Park's example, for educational purposes.
Findings
Exposition of Park's construction of an exotic CP^2#7(-CP^2)
Background coverage on 4-manifold topology
Educational resource for graduate students
Abstract
This article intends to provide an introduction to the construction of small exotic 4-manifolds. Some of the necessary background is covered. An exposition is given of J. Park's construction in arXiv:math.GT/0311395 of an exotic CP^2#7(-CP^2). This article does not intend to present any new results. It was originally a Master's thesis, and its aim is merely to provide a leisurely introduction to exotic 4-manifolds that might be of use to interested graduate students.
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Taxonomy
TopicsGeometric and Algebraic Topology · Homotopy and Cohomology in Algebraic Topology · Advanced Operator Algebra Research
