38

Answers
votes newest views recent
30
Magic trick based on deep mathematics (2)
2
Jokes in the sense of Littlewood: examples?
8
Is it possible to capture a sphere in a knot?
1
Does the exponential function have a square root?
2
Erik Westzynthius’s cool upper bound argument: update?
12
Polynomial roots and convexity
11
Generalization of Tamarkin’s ARO 1993, final round, problem 10/8: still a conjecture?
0
A function that is defined everywhere but has unknown values
14
What is the cover time of a random walk on a cube?
6
Looking for a “scientific” application of a recreational puzzle.
5
Does every ellipse inside a tetrahedron inside a ball fit in a triangle inside the ball?
9
A plausible inequality.
6
Is (n,m)=(18,7) the only positive solution to n^2 + n + 1 = m^3 ?
1
Seemingly emergent structures in mathematics
4
Can anyone analyze this misere game?
8
Rearrangement-style inequality with lots of terms and little evidence (2)
3
The difference of two sums of unit fractions
2
Solving a system of equations/inequalities that have trigonometric functions on the left-hand side
7
Multilinear generalization of Cauchy-Schwarz inequality
5
Sprague-Grundy sequence for the ruler game
7
Lifting units from modulus n to modulus mn.
3
How to Tropicalize a Polynomial in Two Variables?
0
Let G be a graph such that for all u, v ∈ V (G), u no equal to v , |N (u) ∩ N (v )| is odd. Then show that the number of vertices in G is odd
1
existence of equal sum, equal sum of square, equal sum of cube, etc
6
Tensor product is to flat as Hom is to ?
6
Will a ball fired through a focus of an ellipse eventually tend to a horizontal line?
14
One tetrahedron inside another tetrahedron
1
Rubber band domains
6
An inequality involving sums of powers
4
Probability vertices are adjacent in a polygon
1 2 next