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F. C.
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Exponential of a specific hypergeometric series
It looks like some kind of diagonal in a triply graded free Lie algebra is involved. I have already seen something like that for the free Lie algebra on x,y.
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Exponential of a specific hypergeometric series
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Exponential of a specific hypergeometric series
Thanks Wadim. Does this also potentially tell something on the coefficients of $\exp(-f)$ ?
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Exponential of a specific hypergeometric series
I have corrected the wrong link. And indeed the main point is about integrality, as positivity is obvious for $\exp(f)$.
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Exponential of a specific hypergeometric series
corrected the wrong link
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Exponential of a specific hypergeometric series
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Fixed points of a group-operation on a tree, Serre's book "Trees" 6.3.4. and Prop 27
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Fixed points of a group-operation on a tree, Serre's book "Trees" 6.3.4. and Prop 27
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What is the exact statement of "there are 27 lines on a cubic"?
One can also find real cubic surfaces with 27 real lines, with the same construction.
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tutte-polynomial wiki excerpt
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tutte-polynomial tag wiki excerpt
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Are the zeros of Tutte polynomials dense in $\mathbb C^2$?
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The Tutte Polynomial - is a `crossing' the same as a `bridge'?
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What is the Tutte polynomial encoding?
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Derivative of Tutte polynomial at -1
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Tutte polynomials of appropriate Cayley graphs
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Are the zeros of Tutte polynomials dense in $\mathbb C^2$?
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