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zeb

NY

http://math.mit.edu/~notzeb

I like puzzles and games.

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Top Questions
Top Answers
52
Magic trick based on deep mathematics
mathoverflow.net

44
Strange result about convexity
mathoverflow.net

28
"Circular" domination in ${\mathbb R}^4$
mathoverflow.net

27
Find a straight tunnel
puzzling.stackexchange.com

20
How to show this symmetric function inequality
mathoverflow.net

18
One tetrahedron inside another tetrahedron
mathoverflow.net

18
What is the cover time of a random walk on a cube?
mathoverflow.net

18
Polynomial roots and convexity
mathoverflow.net

16
Generalization of Tamarkin's ARO 1993, final round, problem 10/8: still a conjecture?
mathoverflow.net

15
A plausible inequality
mathoverflow.net

15
Placing numbers $1,2,\ldots,n^3$ in a cube so that numbers of any two adjacent unit subcube are coprime
mathoverflow.net

14
The sequence $a_{n+1}=\left\lceil \frac{-1+\sqrt{5}}{2}a_{n}-a_{n-1} \right\rceil$ is periodic
mathoverflow.net

12
The theory of a model of a theory that knows all formulas true in almost all its models
mathoverflow.net

11
Is it possible to capture a sphere in a knot?
mathoverflow.net

11
A Game of Phones
puzzling.stackexchange.com

10
Distribution of degree in graphs: when is the friendship paradox the paradox it wants to be?
mathoverflow.net

10
Elementary proof of a triangular grid lemma
mathoverflow.net

9
Multilinear generalization of Cauchy-Schwarz inequality
mathoverflow.net

9
Lifting units from modulus n to modulus mn.
mathoverflow.net

9
A divergent series related to the number of divisors of of p-1
mathoverflow.net

8
Will a ball fired through a focus of an ellipse eventually tend to a horizontal line?
mathoverflow.net

8
Binary words that are nonconstant on long arithmetic progressions
mathoverflow.net

8
Sheaf cohomology in non-commutative setup
mathoverflow.net

8
An inequality involving sums of powers
mathoverflow.net

7
Free median algebras and maximal linked systems
mathoverflow.net

7
A puzzle with some jumping frogs
mathoverflow.net

7
What defines a "short proof"?
mathoverflow.net

7
Polynomial threading through a monotone corridor
mathoverflow.net

7
Is (n,m)=(18,7) the only positive solution to n^2 + n + 1 = m^3 ?
mathoverflow.net

7
Does every ellipse inside a tetrahedron inside a ball fit in a triangle inside the ball?
mathoverflow.net

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