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Timeline for Iterated Lefschetz numbers

Current License: CC BY-SA 3.0

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Sep 4, 2013 at 0:40 vote accept user38496
Aug 23, 2013 at 19:44 history edited Ian Agol
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Aug 22, 2013 at 20:57 answer added Ian Agol timeline score: 2
Aug 12, 2013 at 5:17 comment added user38496 @IanAgol This is my intuition but I want to show that the integer $m$ depends only on (g,n) and so it seems to me a universal gap between the first and second eigenvalues modulus is necessary.
Aug 12, 2013 at 4:52 comment added Ian Agol For any $(g,n)$, there is a universal lower bound on $|\lambda|>1$ - does that imply what you want?
Aug 12, 2013 at 3:45 comment added user38496 @IgorRivin added the definition for the case being considered.
Aug 12, 2013 at 3:43 history edited user38496 CC BY-SA 3.0
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Aug 12, 2013 at 3:04 comment added Vidit Nanda @IgorRivin The Lefschetz number is quite standard, it is defined to be the alternating sum over dimension of the trace of the induced map on homology. See mathworld.wolfram.com/LefschetzNumber.html for instance.
Aug 11, 2013 at 23:16 comment added Igor Rivin You might want to define the Lefschetz number...
Aug 11, 2013 at 22:38 review First posts
Aug 11, 2013 at 22:54
Aug 11, 2013 at 22:20 history asked user38496 CC BY-SA 3.0