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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
129
Why do we still do symbolic math?
math.stackexchange.com

23
The list of problems for Grothendieck's thesis
mathoverflow.net

20
The role of 'arbitrary' in proofs
math.stackexchange.com

13
Computational complexity of computing simplicial homology
mathoverflow.net

13
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
Denominators of certain Laurent polynomials
mathoverflow.net

11
Integer but not Laurent sequences
mathoverflow.net

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

10
Combinatorial identity
math.stackexchange.com

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

9
On additive/multiplicative property of permanent
mathoverflow.net

9
Is there a classification of polynomial Poisson brackets?
mathoverflow.net

7
Irreducibility of family of polynomials
mathoverflow.net

7
Counting tournaments with ties
mathoverflow.net

7
Minimum modifications to make a graph bipartite
mathoverflow.net

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

7
What are the relations among canonical basis, dual canonical basis, Semicanonical Basis, dual semicanonical bases?
mathoverflow.net

7
Plane partitions with equal margins
mathoverflow.net

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

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

6
Graphs with prescribed numbers of k-cliques
mathoverflow.net

6
Create a graph with a specified number of spanning trees
mathoverflow.net

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

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

6
Construct a non-connected graph with a given degree sequence
mathoverflow.net

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

5
“Small” simplicial complex with torsion trees
mathoverflow.net

5
relate shellability of a simplicial complex to the links of its faces
mathoverflow.net

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