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A Geometric Proof of the Fintushel–Stern Formula

✍ Scribed by Olivier Collin; Nikolai Saveliev

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
141 KB
Volume
147
Category
Article
ISSN
0001-8708

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✦ Synopsis

The Fintushel Stern formula asserts that the Casson invariant of a Brieskorn homology sphere 7( p, q, r) equals 1Â8 the signature of its Milnor fiber. We give a geometric proof of this formula, as opposite to computational methods used in the original proof. The formula is also refined to relate equivariant Casson invariants to equivariant signatures.

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