25

Answers

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5

Probability, that a graph G does not contain a cycle

13

Complexity of random knot with vertices on sphere

17

Which platonic solids can form a topological torus?

27

Adjacency matrices of graphs

3

Optimal knot placement for fitting piecewise-continuous linear functions to a nonlinear function

9

Number of unique sortings of subset-sums

4

Random products of projections: bounds on convergence rate?

19

What is your favorite isomorphism? (2)

1

Combining DAGs into an acyclic tournament

1

Which came first: the Fibonacci Numbers or the Golden Ratio?

8

How fast can the base-bumping function in Goodstein’s theorem grow?

2

Minimally 2-vertex-connected graphs?

1

Correlation in graph coloring

8

Naturally occuring groups with cardinality greater than the reals.

4

Sorting a binary matrix diagonal in polynomial time while preserving rows

1

Cover time of weighted graphs

3

A differential inclusion relating to the slope of a convex function

2

Roulette probability

6

When is an algebra of commuting matrices (contained in one) generated by a single matrix?

4

Eigenvalues of A+B where A is symmetric positive definite and B is diagonal

2

Math puzzles for dinner

7

Lattice Stick Number vs. Stick Number of Knot

3

Linear Algebra Proofs in Combinatorics?

4

How to generate a net on a 8-dimensional sphere

1

How to prove that a set of facets are all the facets of a convex polytope.