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seen Oct 20 at 18:28
I like to ask questions here to learn things that are sometimes hard to learn from books.

Oct
16
comment Moduli interpretation of Hecke operators on Shimura curves
@Keerthi: Thanks!
Oct
13
asked Moduli interpretation of Hecke operators on Shimura curves
Sep
24
awarded  Autobiographer
Sep
20
accepted L-function of twist
Sep
20
awarded  Popular Question
Sep
20
asked L-function of twist
Aug
25
asked Twist in identification with singular cohomology
Aug
22
awarded  Yearling
Aug
15
awarded  Popular Question
Jul
9
asked Bloch Kato Exponential as formal lie group exponential
Jul
2
awarded  Inquisitive
Jul
2
awarded  Curious
Apr
25
asked Notation in Shimura “Arithmetic of Automorphic …”
Dec
5
asked Abel-Jacobi map isomorphism galois representations
Oct
28
comment Good factors of L-function
Great! Here's a precise reference: Serre's Abelian L-adic representations book defines the L-function via arithmetic frobenius (p.I-16) and specifies the euler factor as the characteristic polynomial evaluated at the appropriate number. Thanks!
Oct
28
comment Good factors of L-function
This is pretty wierd. (1) Of course, fixed pts of arithmetic or geometric frobenius of vars/finite fields obviously agree, only their characteristic polynomials disagree. (2) The eigenvalues of geometric frobenius are algebraic integers, (hence not arithmetic frobenius). (3) Charpolys appearing in Weil conjectures (hence local zeta funcs) are of geometric frob. and I thought that the Hasse-Weil zeta function of vars/num fields are products of the local zeta functions (evaluated at various pts). If this last result is true, do we have a contradiction?
Oct
27
asked Good factors of L-function
Oct
4
revised Learning a little Motivic Cohomology
added 134 characters in body
Oct
4
revised Learning a little Motivic Cohomology
added 134 characters in body
Oct
4
comment Learning a little Motivic Cohomology
Hi Andrew, thanks for your comments and the reference - I wasn't aware of it. I agree, Motivic cohomology has the ability to describe special values of $L$-functions of smooth projective varieties (and more generally) as predicted by Beilinson.