45

Answers

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7

Is there any proof that you feel you do not “understand”?

3

Another colored balls puzzle

5

The distribution of cycle length in random derangement

3

Minimum 1st-neghbors distance between N random points on a ring

4

Expected Hitting Time for Simple Random Walk from origin to point (x,y) in 2D-Integer-Grid

5

Proof synopsis collection

2

random walk returning probability

3

Planar eucliean bipartite matching with squared distances

1

Dealing with undefined expressions in predicate logic

4

regular graph construction

4

Triangular grid with 4 edges per vertex

6

Solving a modified birthday problem at a glance

18

Heuristically false conjectures

6

Rain droplets falling on a table

6

The Bruss-Yor conjecture about an iterated integral

5

Examples of theorems with proofs that have dramatically improved over time

4

Are the Johnson graphs Hamiltonian?

3

Can infinity shorten proofs a lot?

24

A random walk with uniformly distributed steps

1

Excellent uses of induction and recursion

4

Form a $\mathbb{Z}^d$ lattice cycle from given lengths

9

Careless packing

3

The existence of proper classes

4

Estimate about primes

4

Men in a bar - stoch. processes

6

Recurrence relations whose base case is ‘at infinity’

0

Nim-like(?) game winning strategy?

10

Some questions concerning a random number process

3

Distribution of a maximum

1

A difficult (?) multinomial problem (balls, bins, etc.)