Upsilon invariants from cyclic branched covers
We extend the construction of Y-type invariants to null-homologous knots in rational homology three-spheres. By considering m-fold cyclic branched covers with m a prime power, this extension provides new knot concordance invariants YCm(K) of knots in S3. We give computations of some of these invaria...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Akadémiai Kiadó
2021
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