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bio website math.temple.edu/~rivin
location USA
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visits member for 3 years, 4 months
seen 1 hour ago

Professor of Mathematics at Temple University. This year the ICERM Visiting Professor at Brown (and ICERM).


1h
comment Links between Geometric Group Theory and Number Theory
I don't think Church/Farb found a new proof of the prime number theorem, but rather a way to count irreducible polynomials (of given degree) over $F_q,$ which was first done by Dedekind [I believe], and is a matter of simple combinatorics (it is an exercise in Knuth volume 2). Also, I would not call this Church/Farb work "geometric".
2h
asked Characterization(?) of coersive(?) elements in the special linear group
1d
accepted What is “tilting” in the context of large deviations?
1d
comment What is “tilting” in the context of large deviations?
Thanks, but why would one do such a thing? Presumably you want to prove your large deviation result with a given measure....
2d
revised Local system over $\mathcal A_{g,[n]}$ with unipotent monodromy
PRINCIPAL not principle
2d
answered Beautiful constructions in algebraic topology that facilitate one's understanding of homotopy theory
2d
asked What is “tilting” in the context of large deviations?
2d
answered What is the group cohomology of the mapping class group of a surface
2d
answered Finite group acting on sphere
Apr
13
answered In H_2 of Sp(2g,Z), why does Meyer's signature cocycle give 4 times a generator?
Apr
10
answered Question about the log-det function
Apr
9
comment Uniform bound for the number primes $p$ s.t. a polynomial has a root modulo $p$
The results of Oesterle (as quoted by Serre) and Lagarias-Odlyzko were conditional only (on the GRH for the appropriate Dedekind L-functions), I thought.
Apr
9
comment Uniform bound for the number primes $p$ s.t. a polynomial has a root modulo $p$
I think just stating the main conditional and unconditional theorems would be useful. By the way, I notice he does NOT thank Oesterle, who claims to still have the notes of his '75(?) unpublished work, and since he is not really interested in working on it, maybe he can share them with Winckler -- his claimed (conditional) constants are a bit better than Winckler's...
Apr
9
comment Uniform bound for the number primes $p$ s.t. a polynomial has a root modulo $p$
Wow, I did not know about this paper! The guy should get a medal for cleaning this up!
Apr
8
comment Why was John Nash's 1950 Game Theory paper such a big deal?
@SylvainJULIEN Is that why he got the Nobel prize? I believe that was the OP's question.
Apr
8
answered Fundamental group of a manifold with an $S^1$-action
Apr
8
revised Fundamental group of a manifold with an $S^1$-action
fixed a couple of typos
Apr
8
asked Characters and conjugacy classes
Apr
7
comment Distance between two sets
Just out of curiosity: is there a standard reason/reference why the alternating projection method does not work?
Apr
7
answered Nielsen-Thurston classification of homeomorphisms for open surfaces?