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Questions
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Growth of $n=n(k)$ for which there’s a non-trivial solution to $x_1^k+\cdots+x_n^k=y^k$?

mar 29 12 at 22:22 Will Jagy 12.5k●1●26●45

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8
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Non-trivial class number at some finite level in the cyclotomic $\mathbf{Z}_p$-extension of $\mathbf{Q}$?

dec 2 11 at 17:07 David Loeffler 8,603●15●40

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847
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How badly can strong multiplicity one fail in the theory of automorphic representations?

sep 9 11 at 1:32 Joël 9,459●19●52

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553
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Image of projective 1-space contained in projective 1-space over a smaller field?

jun 11 11 at 13:43 Keerthi Madapusi Pera 1,631●1●5●10

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6
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Explicit formula for the trace of an unramified principal series representation of $GL(n,K)$, $K$ $p$-adic.

jun 24 at 13:13 Marc Palm 6,936●7●20

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Computing (on a computer) the first few (non-trivial) zeros of the zeta function of a number field.

may 6 11 at 16:23 Stopple 2,645●4●17

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Why isn’t meromorphic continuation enough for converse theorems?

apr 29 11 at 16:08 Denis Chaperon de Lauzières 2,194●2●8

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737
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Clifford theory: behaviour of a very general irreducible representation under restriction to a finite index subgroup.

mar 18 11 at 13:01 vytas 363●2●6

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562
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Structure of cuspidal Bernstein components---do non-commutative endomorphism rings ever really show up?

apr 5 11 at 9:20 David Renard 31●1

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480
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How to explicitly compute lifting of points from an elliptic curve to a modular curve?

feb 14 11 at 8:18 Chris Wuthrich 1,775●6●11

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