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3 votes
1 answer
112 views

Is the transpose of an infinite Hadamard matrix also Hadamard?

7 votes
3 answers
1k views

Boundary regularity for the Dirichlet problem

0 votes
0 answers
7 views

Properties of slowly-varying functions at two large points

1 vote
0 answers
7 views

Non-existence of power divided structure on a maximal ideal of truncated polynomial rings (example from Koblitz)

10 votes
4 answers
645 views

Deriving an asymptotic for $\pi(x)$ directly from $\log \zeta(s)$?

1 vote
0 answers
13 views

Period mappings are analytic

10 votes
2 answers
474 views

How algebraic can the dual of a topological category be?

0 votes
1 answer
132 views

Quantum labyrinth

0 votes
0 answers
10 views

Finiteness of non-orientable 3-manifolds with the same orientable two-fold cover

2 votes
0 answers
10 views

Proving that two sequences of polynomials defined over partitions are inverse to each other

6 votes
0 answers
156 views

Did Lebesgue like non-measurable set or not?

1 vote
0 answers
173 views

A question about decomposition of irreducible root system

1 vote
2 answers
122 views

Calderon-Zygmund/$L^p$ estimates for the linear heat equation

0 votes
1 answer
53 views

Lower bound for the size of a family of sets

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