Igor Rivin

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Name Igor Rivin
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Professor of Mathematics at Temple University.
65

Questions
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116
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Mathematical “urban legends” [closed]

jan 14 at 18:38 Pietro Majer 14.7k●1●17●51

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29
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19
answers
2k
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The half-life of a theorem, or Arnold’s principle at work

may 27 at 17:15 Johann Cigler 1,228●3●10

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2
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941
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whence commutative diagrams?

mar 25 11 at 1:11 KConrad 15.1k●2●53●110

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15
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3
answers
757
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size of smallest generating set of a group

sep 28 at 12:59 Sam Nead 4,432●9●25

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14
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3
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749
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symmetric integer matrices

jul 20 at 0:17 Igor Rivin 22.3k●3●25●49

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13
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2
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441
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Conformal embedding of Riemann surfaces into 3-space

feb 1 11 at 19:45 Kevin Lin 12k●2●25●101

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12
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5
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597
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Statistics of Extended GCD

jan 29 11 at 7:16 Aaron Meyerowitz 7,679●1●8●24

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4

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12
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1
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517
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Groups surjecting onto a free group

dec 9 at 11:35 HW 6,616●1●10●32

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599

Answers
votes newest views recent
203
Mathematical “urban legends” (5)
31
Getting nervous refereeing a paper
26
Is this 1974 claim still valid?
25
To which extent can one recover a manifold from its group of homeomorphisms
16
Computer Science for Mathematicians
14
Which closed orientable $4$-dimensional manifolds cannot be embedded in $6$-space?
13
Existence of Rational Orthogonal Matrices
12
Extreme points of a set of probability measures
12
Total spaces of $TS^2$ and $S^2 \times R^2$ not homeomorphic
12
Shape of snowflakes
12
Movies about mathematics/mathematicians (2)
12
Is there a combinatorial analogue of Ricci flow?
11
When are (finite) simplicial complexes (smooth) manifolds?
11
Proper way to deal with papers you’ve already refereed.
11
Why is there a unique hyperbolic simplex of largest area?
10
Ricci flow with surgery in dimension 2
10
If $f$ is smooth and even then there exists a smooth function $g$ such that $f(x)=g(x^2)$
10
“homotopy sphere” assumption in Poincare Conjecture
10
The half-life of a theorem, or Arnold’s principle at work
9
Is a compact, connected, orientable 3-manifold with $\mathbb{Z}^K$ fundemental group uniquely determined?
9
What does log convexity mean?
9
Convex hull of lattice points in a circle
9
How many vertices/edges/faces at most for a convex polyhedron that tiles space?
9
Algorithm for image of a free group homomorphism
9
Applications of nonconstructive mathematics
9
Christmas giftgiving
8
Are subgroups of hyperbolic groups quasiisometrically embedded ?
8
How did “Ore’s Conjecture” become a conjecture?
8
What is known about Ulam’s problem of metric spaces with isometric squares?
8
Find the least prime $p$ such that $mn$ divides $p-1$
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