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3h
answered How to draw that graph?
4h
asked How to get the directed line graph of the complete digraph?
6h
asked The Three Ways to Arrange Squares in Barnette Graphs
6h
asked How to draw that graph?
15h
answered 3-regular connected planar graph
17h
answered Number of faces in a planar graph bounded by odd length cycles?
2d
asked Help to solve $\displaystyle \frac{1}{2\pi i}\int_{c-i\infty}^{c+i\infty} \frac{\zeta(2s)\zeta(s-1)}{\zeta(2s-2)} \frac{x^{s}}{s} dz $
2d
asked Use Gröbner bases to count the $3$-edge colorings of planar cubic graphs…
Feb
4
asked How to count the closed left-hand turn paths of planar bicubic graphs?
Feb
3
asked On groups with presentations $ \langle a,b,c|a^2=b^2=c^2=(ab)^p=(bc)^q=(ca)^r=(abc)^s=1\rangle $…
Jan
28
answered Why are the trivial zeros of the Riemann zeta function only negative?
Jan
27
asked Is there matrix representation of the line graph operator?
Jan
27
asked Construction of an “outer-diagonal” indexing matrix
Jan
25
asked On the Usual Orientation of Cubic Graphs in Random Construction of Riemann Surfaces
Jan
22
asked Mapping $\Delta(2,2,2)\mapsto \Delta(4,4,2)$…
Jan
22
answered Cubic Planar Graphs have $2^m-1$ Hamilton Cycles, contradicting Bosak…
Jan
21
asked Free Gliders for Everyone?
Jan
8
asked General eigenvalues of a matrix for $\bf B_{2n}=\bf 1_{2n}-I_n\otimes \sigma_x$
Dec
28
answered Diagonal entries of an Hermitian matrix are real
Dec
28
answered EigenVectors of an unitary matrix