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8
Undergraduate Level Math Books
54
If you break a stick at two points chosen uniformly, the probability the three resulting sticks form a triangle is 1/4. Is there a “nice” proof of this fact?
21
What’s a nice argument that shows the volume of the unit n-ball in R^n approaches 0?
12
Number of invertible {0,1} real matrices?
1
What is the Tutte polynomial encoding?
6
The middle eigenvalues of an undirected graph
10
What are some good examples of non-monotone graph properties?
11
Cauchy-Schwarz and pigeonhole
3
Primes are pseudorandom?
3
Random Alternating Permutations
1
Asymptotics of a hypergeometric series/Taylor series coefficient.
8
Bound on cardinality of a union
5
“sparse graphs are locally tree-like”
6
Singularity of sparse random matrices
13
A strange sum over bipartite graphs
4
Spectrum of the Laplacian on G(n, p) and G(n, M)
8
Splitting pythagorean triples
2
Problem regarding subsets that sum to 0
3
Large Intersecting Subsets of a Set
2
What is the expected number of maximal bicliques in a random bipartite graph?
6
Given a sequence defined on the positive integers, how should it be extended to be defined at zero?
4
Best lower bound for off-diagonal Ramsey numbers
8
The latice spanned by $m$ random 0-1 vectors of length $n$ (2)
1
Equitable Allocation of Individuals to Positions
10
Invertibility of a certain matrix indexed by the Hamming cube
4
What are the Schur functions of the eigenvalues of a non-negative integer matrix counting?
4
how to cover a set in a grid with as few rectangles as possible
4
Linear Algebra Over F_{2}
2
spectra of VERY sparse random matrices
5
Bounds on maximal eigenvalue of a k-regular graph
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