Tom Leinster

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Name Tom Leinster
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Bizarre operation on polynomials

jan 21 at 4:37 Gjergji Zaimi 3,782●1●5●21

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20
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3
answers
472
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Why are abelian groups amenable?

jan 19 at 5:11 Tom Church 1,283●3●9

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5

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8
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4
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Fourier transform of exp(-||x||_p): more general question

oct 24 at 18:09 Mark Lewko 589●10

 

67

Answers
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25
Theorems for nothing (and the proofs for free)
24
What is a metric space?
24
What is the name for the following categorical property?
23
Cures for mathematician’s block (as in writer’s block)
23
Best online math videos?
23
When are two proofs of the same theorem really different proofs
21
when is A isomorphic to A^3? (2)
18
Continuous function from $[0,1]$ to $[0,1]$
17
Combinatorial results without known combinatorial proofs
15
How do I check if a functor has a (left/right) adjoint?
15
Taking lecture notes in lectures
13
Is a functor which has a left adjoint which is also its right adjoint an equivalence ?
11
How to distinguish between natural and unnatural equivalences of categories
11
Does the category Monoid of monoids have finite coproducts?
10
Geometric group theory and analysis
10
What’s a groupoid? What’s a good example of a groupoid?
9
“Philosophical” meaning of the Yoneda Lemma
9
Why should algebraic objects have naturally associated topological spaces? (Formerly: What is a topological space?)
9
What properties “should” spectrum of noncommutative ring have?
9
Can epi/mono for natural transformations be checked pointwise?
9
What is the general opinion on the Generalized Continuum Hypothesis?
8
Functions separting points in Hausdorff spaces
8
Google question: In a country in which people only want boys
8
Is there lore about how endofunctors of Cat interact with the formation of presheaf categories?
8
In what sense are fields an algebraic theory?
8
What is a monoidal metric space?
7
Beamer hints and tips
7
What is lambda calculus related to?
7
What is Yoneda’s Lemma a generalization of?
7
groups as categories and their natural transformations
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