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Tracy Hall
  • Member for 11 years, 11 months
  • Last seen more than 6 years ago
40 votes
Accepted

Adjacency matrices of graphs

21 votes

What is your favorite isomorphism?

19 votes
Accepted

Which platonic solids can form a topological torus?

14 votes

Complexity of random knot with vertices on sphere

10 votes
Accepted

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

9 votes

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

9 votes
Accepted

Number of unique sortings of subset-sums

8 votes

Linear algebra proofs in combinatorics?

8 votes

Naturally occuring groups with cardinality greater than the reals.

7 votes
Accepted

Lattice Stick Number vs. Stick Number of Knot

6 votes

What is your favorite isomorphism?

6 votes
Accepted

Random products of projections: bounds on convergence rate?

5 votes
Accepted

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

5 votes

Probability, that a graph G does not contain a cycle

4 votes

Math puzzles for dinner

4 votes

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

4 votes
Accepted

How to generate a net on a 8-dimensional sphere

4 votes
Accepted

A differential inclusion relating to the slope of a convex function

4 votes

Sorting a binary matrix diagonal in polynomial time while preserving rows

2 votes
Accepted

Minimally 2-vertex-connected graphs?

2 votes
Accepted

Roulette probability

2 votes
Accepted

Combining DAGs into an acyclic tournament

1 vote

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

1 vote

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

1 vote

Cover time of weighted graphs

1 vote

Correlation in graph coloring