User Mario Krenn

32 votes

0 answers

3k views

Vertex coloring inherited from perfect matchings (motivated by quantum physics)

asked Sep 24, 2018 at 18:16

22 votes

3 answers

4k views

Intuition behind counterexample of Euler's sum of powers conjecture

asked Mar 11, 2019 at 16:02

21 votes

2 answers

4k views

Graphs with only disjoint perfect matchings

asked Apr 12, 2017 at 13:11

21 votes

1 answer

1k views

Smallest known counterexamples to Hedetniemi’s conjecture

asked Jan 19, 2021 at 22:39

18 votes

8 answers

1k views

Conceptual insights and inspirations from experimental and computational mathematics [duplicate]

asked Dec 2, 2019 at 23:56

14 votes

2 answers

963 views

Conjecture on maximum of symmetric combinatoric function

asked Dec 13, 2014 at 20:40

13 votes

1 answer

1k views

Gerhard Frey, "Links between stable elliptic curves and certain diophantine equations"

asked Oct 11, 2018 at 11:52

13 votes

1 answer

690 views

Göbel's correspondance between rooted trees and natural numbers

asked Jun 5, 2021 at 18:24

11 votes

1 answer

819 views

Graphs with only disjoint perfect matchings, with coloring

asked May 31, 2018 at 14:55

10 votes

0 answers

748 views

Has this notion of vertex-coloring of graphs been studied?

asked Feb 23, 2019 at 4:58

9 votes

1 answer

382 views

Why is the number of Perfect Matchings in a triangular grid equivalent to the number of Royal Paths?

asked Aug 8, 2018 at 17:30

8 votes

1 answer

532 views

Fastest algorithm for counting perfect matchings in a general graph

asked Apr 19, 2017 at 12:48

6 votes

1 answer

525 views

Complexity for calculating number of Perfect Matchings in k-regular hypergraph

asked Jan 6, 2018 at 20:42

6 votes

1 answer

298 views

Why is the number of Hamiltonian Cycles of n-octahedron equivalent to the number of Perfect Matching in specific family of Graphs?

asked Jun 12, 2018 at 15:21

6 votes

1 answer

596 views

Combinatorial equation system with exponentially many equations in quadratic many variables

asked Sep 19, 2019 at 3:58

5 votes

0 answers

157 views

Dirichlet eta function and Stirling Permutations

asked Aug 12, 2018 at 16:43

5 votes

0 answers

115 views

Hypergraphs with only disjoint perfect matchings

asked Dec 7, 2019 at 2:26

5 votes

3 answers

420 views

Parametrization of real-valued SU(N)

asked Feb 13, 2020 at 3:16

4 votes

2 answers

519 views

Closed-Form solution for system of simple nonlinear equations

asked May 21, 2016 at 15:07

4 votes

2 answers

445 views

Graphs with unique 1-Factorization

asked Apr 11, 2017 at 8:54

3 votes

1 answer

205 views

Name and information about this graph

asked Mar 1, 2018 at 15:08

3 votes

2 answers

303 views

Mapping problems to Boolean formulas for SAT solvers

asked Jul 12, 2019 at 21:15

2 votes

2 answers

239 views

Concise formulation of set of equation systems

asked Sep 15, 2019 at 8:37

1 vote

1 answer

340 views

Matrix logarithm for d-dimensional cyclic permutation matrix

asked Aug 17, 2019 at 4:24

Stack Exchange Network

24 Questions

Vertex coloring inherited from perfect matchings (motivated by quantum physics)

Intuition behind counterexample of Euler's sum of powers conjecture

Graphs with only disjoint perfect matchings

Smallest known counterexamples to Hedetniemi’s conjecture

Conceptual insights and inspirations from experimental and computational mathematics [duplicate]

Conjecture on maximum of symmetric combinatoric function

Gerhard Frey, "Links between stable elliptic curves and certain diophantine equations"

Göbel's correspondance between rooted trees and natural numbers

Graphs with only disjoint perfect matchings, with coloring

Has this notion of vertex-coloring of graphs been studied?

Why is the number of Perfect Matchings in a triangular grid equivalent to the number of Royal Paths?

Fastest algorithm for counting perfect matchings in a general graph

Complexity for calculating number of Perfect Matchings in k-regular hypergraph

Why is the number of Hamiltonian Cycles of n-octahedron equivalent to the number of Perfect Matching in specific family of Graphs?

Combinatorial equation system with exponentially many equations in quadratic many variables

Dirichlet eta function and Stirling Permutations

Hypergraphs with only disjoint perfect matchings

Parametrization of real-valued SU(N)

Closed-Form solution for system of simple nonlinear equations

Graphs with unique 1-Factorization

Name and information about this graph

Mapping problems to Boolean formulas for SAT solvers

Concise formulation of set of equation systems

Matrix logarithm for d-dimensional cyclic permutation matrix