Keivan Karai

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Name Keivan Karai
Member for 3 years
Seen May 15 at 13:09
Website
Location Jacobs University
Age 36
11

Questions
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20
31
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3
answers
4k
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Zagier’s one-sentence proof of Fermat’s theorem.

jul 16 10 at 14:28 Christian Elsholtz 519●2●4

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19
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17
answers
3k
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Using slides in math classroom

nov 10 11 at 4:18 JP McCarthy 1●3

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3
12
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3
answers
630
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orientations for zero-dimensional manifolds

nov 29 10 at 7:33 André Henriques 14.8k●2●30●83

 

3

2
5
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2
answers
574
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P-adic Arithmetic Software

jun 30 11 at 12:43 Maurizio Monge 651●4●11

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3
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1
answer
526
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Why is the identity element of a group denoted by $e$?

feb 7 12 at 14:15 a-fortiori 2,786●5●11

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3
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2
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276
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Quantitative Weierstraß approximation

feb 25 11 at 15:44 Andrey Rekalo 13.9k●1●32●68

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3
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1
answer
1k
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A proof of the Bernstein inequality

jul 3 10 at 18:53 Michael Greenblatt 441●3●7

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37

Answers
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22
Zariski-closed subsemigroups of SL_n(C) are groups
20
Ultraproducts of finite cyclic groups
18
Jokes in the sense of Littlewood: examples?
18
Wonderful applications of the Vandermonde determinant
15
Why are free groups residually finite?
12
Partition of R into midpoint convex sets
12
prime ideals in C([0,1])
11
Is there a group homeomorphic to but not homeomorphically isomorphic to the circle group?
9
What is your favorite “strange” function?
8
A set for which it is hard to determine whether or not it is countable.
8
German mathematical terms like “Nullstellensatz”
7
Uniform lattices in semisimple Lie groups
7
Any factor group of a finite abelian group is isomorphic to some subgroup
6
Origins of Mathematical Symbols/Names
5
discrete subgroups in p-adic Lie groups?
5
Automorphisms of $SL_n(\mathbb{Z})$
4
When does the set of isometries form a group?
4
Amenable exponential growth
4
Random Walk anecdote.
4
Function with range equal to whole reals on every open set
3
description of functions of conditionally negative type on a group
3
Dense cyclic subgroup
2
Undergraduate Probability Topics
2
Uniqueness in Composition of Polynomials
2
How Can I Tell when A Subgroup of a Lie Group is Generated by Unipotents?
2
Problems where we can’t make a canonical choice, solved by looking at all choices at once
2
Importance of Poincaré recurrence theorem? Any example?
2
A large deviation / binomial coefficients bound
2
arithmetic groups VS. Zariski dense discrete subgroups?
1
Are extensions of linear groups linear?
1 2 next

 

32

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1

 

48

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31

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