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Apr
18
accepted Tests for my “LineGraph-from-AdjacencyMatrix” function
Apr
18
comment Tests for my “LineGraph-from-AdjacencyMatrix” function
Thanks would be nice if you could give an explicite example...
Apr
14
comment Get rid of `for` loops to construct $L$
hey thanks for contributing, I think I can use some of your ideas...
Apr
11
awarded  Nice Question
Apr
11
asked Tests for my “LineGraph-from-AdjacencyMatrix” function
Apr
11
comment Get rid of `for` loops to construct $L$
+1 thanks, the need to compute $L$ turned out in this discussion, if you're interested...
Apr
11
revised Divergence of the Derivative of the Prime Counting Function
added infinity
Apr
5
comment When the line graph of a line graph gives us the original graph?
+1 for question and answer, I think I can use this result as check for my linear algebra implementation of the mapping $L(G)$...
Apr
1
comment Use Gröbner bases to count the $3$-edge colorings of planar cubic graphs…
Thanks, do you know an online Gröbner base solver? I don't have acces to Maple locally...
Apr
1
comment Interpretations of a weighted adjacency matrix's eigenvectors and eigenvalues?
But aren't you then just interested in eigenvalues of symmetric matrices?
Apr
1
revised Use Gröbner bases to count the $3$-edge colorings of planar cubic graphs…
added 3 characters in body
Mar
31
answered Is there a transitive property for undirected graph paths?
Mar
31
comment Is there a transitive property for undirected graph paths?
Isn't that obvious? What makes you worry?
Mar
31
revised Who found the expression $n^2 - n + 41 $ for generating prime numbers?
added 1 character in body
Mar
31
comment Who found the expression $n^2 - n + 41 $ for generating prime numbers?
@LeGrandDODOM wiki, added...
Mar
31
revised Who found the expression $n^2 - n + 41 $ for generating prime numbers?
added 129 characters in body
Mar
31
answered Who found the expression $n^2 - n + 41 $ for generating prime numbers?
Mar
31
comment Is it possible to express a vector using cross product with another vector?
@ja72 I haven't checked and tried to point that out with "(if possible!)". Thanks for checking...
Mar
31
comment Is it possible to express a vector using cross product with another vector?
@ja72 post another answer! Every cross product should be welcome...
Mar
30
comment Is this proof of the twin prime conjecture?
@Ed_4434 although it's not a publication, it's pretty public...