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John Machacek

Richmond, VA, USA

https://sites.google.com/view/jmachacek/

Visiting Assistant Professor at Hampden-Sydney College

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Top Questions
Top Answers
130
Why do we still do symbolic math?
math.stackexchange.com

25
The list of problems for Grothendieck's thesis
mathoverflow.net

21
The role of 'arbitrary' in proofs
math.stackexchange.com

19
Listing all posets on 9 points?
mathoverflow.net

14
Computational complexity of computing simplicial homology
mathoverflow.net

14
Are there invariants of cell complexes similar to the Euler characteristic?
mathoverflow.net

12
Densest Graphs with Unique Perfect Matching
mathoverflow.net

12
Does the basis graph of a matroid determine it?
mathoverflow.net

11
Integer but not Laurent sequences
mathoverflow.net

11
Denominators of certain Laurent polynomials
mathoverflow.net

10
Homotopy type of non-Cohen-Macaulay complexes
mathoverflow.net

10
The current status of the conjecture on algebraic matroids
mathoverflow.net

10
Combinatorial identity
math.stackexchange.com

10
Is there a classification of polynomial Poisson brackets?
mathoverflow.net

9
Minimum modifications to make a graph bipartite
mathoverflow.net

9
On additive/multiplicative property of permanent
mathoverflow.net

8
Number of $k$-rank subspaces of $\mathbb{Z}_2^n$ is odd: easy proof?
mathoverflow.net

8
What are the relations among canonical basis, dual canonical basis, Semicanonical Basis, dual semicanonical bases?
mathoverflow.net

7
Application of toric varieties for problems that do not mention them
mathoverflow.net

7
Counting tournaments with ties
mathoverflow.net

7
Irreducibility of family of polynomials
mathoverflow.net

7
Mathematician who talked about the probability of a "good" graph?
math.stackexchange.com

7
Plane partitions with equal margins
mathoverflow.net

7
Conjecture about minimal number of edge crossings in complete bipartite graphs
mathoverflow.net

7
The verbs in combinatorics: Enumerating, counting, listing and all that
mathoverflow.net

7
"Small" simplicial complex with torsion trees
mathoverflow.net

6
How to quantify the error correction capacity of LDPC code?
mathoverflow.net

6
Soft question about the square root
math.stackexchange.com

6
Show that the image of a linear transformation is equal to the kernel
math.stackexchange.com

6
Combinatorial interpretation for coefficients of reciprocal of power series
mathoverflow.net

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