In the spring of 1985, A. Casson announced an interesting invariant of homology 3-spheres via constructions on representation spaces. This invariant generalizes the Rohlin invariant and gives surprising corollaries in low-dimensional topology. In the fall of that same year, Selman Akbulut and John McCarthy held a seminar on this invariant. These notes grew out of that seminar. The authors have tried to remain close to Casson's original outline and proceed by giving needed details, including an exposition of Newstead's results. They have often chosen classical concrete approaches over general methods. For example, they did not attempt to give gauge theory explanations for the results of Newstead; instead they followed his original techniques.
Originally published in 1990.
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- ISBN13 9781400860623
- Publish Date 14 July 2014 (first published 21 February 1990)
- Publish Status Active
- Publish Country US
- Imprint Princeton University Press
- Format eBook
- Pages 202
- Language English
- URL http://degruyter.com/search?f_0=isbnissn&q_0=9781400860623&searchTitles=true