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Apr
13
comment Forbidden toroidal minors
Wow, that is a much larger set than I expected! Do you know, off-hand, if there are simple ways to test if a graph is toroidal? If not, I can ask in a new question.
Apr
13
accepted Forbidden toroidal minors
Apr
12
asked Forbidden toroidal minors
Apr
2
accepted Fourier decomposition of the Mandelbrot set
Apr
2
comment Fourier decomposition of the Mandelbrot set
Thanks for the article!
Mar
31
asked Fourier decomposition of the Mandelbrot set
Mar
28
revised Josephus Variant
Spelling error and added a link for the problem
Mar
22
asked Solution to the “cubic” Helmholtz equation
Feb
26
comment Graph diameter of a single vertex?
@Wayne so the question boils down to, is the trivial path considered a path in the calculation of the diameter?
Feb
26
awarded  Custodian
Feb
26
reviewed Approve suggested edit on Asymptotic Relative Efficiency: Poisson
Feb
26
asked Graph diameter of a single vertex?
Feb
11
comment Expected number of clusters on chessboard
@MarnixKlooster For diagonals, you can have at most N=61, as you need the squares (0,1),(1,0),(1,1) to be filled (or any other corner).
Feb
11
comment Expected number of clusters on chessboard
@MarnixKlooster According to the def. by OP, you can have a two independent clusters with even 62 squares filled. Consider the situation where all squares are filled on except for (0,1),(1,0). The single conner square and the remaining large 61-size cluster are not connected "sideways". Now if you count diagonals as a connection, the story is different.
Feb
11
answered Expected number of clusters on chessboard
Feb
6
accepted Are there any infinites not from a powerset of the natural numbers?
Feb
6
comment Are there any infinites not from a powerset of the natural numbers?
Thank you for the informative answer, I think it clears up a few mistakes in both my nomenclature and my understanding of the ordinals. I was trying to lookup the Hebrew "B" transfinite number and couldn't simply google for the letter: to help those who follow, they are called Beth numbers.
Feb
6
asked Are there any infinites not from a powerset of the natural numbers?
Feb
4
answered Additively separable functions
Feb
3
awarded  Popular Question