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22h
comment A number array related to colored necklaces and the primes
although I don't see an immediate connection.
22h
comment A number array related to colored necklaces and the primes
oeis.org/A001037 is another related sequence, although a
Oct
19
reviewed Approve suggested edit on Where can I find the classification of groups of order 8p?
Oct
16
comment Is there an English translation of Minding's 1839 paper?
Assuming it's no coincidence that you have a Dutch name, you certainly can read German without needing to look in a dictionary too much; just try;-) The harder part will be to convert the text to modern terminology, but this equally applies to other languages.
Oct
16
comment For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
oh, I just meant to say that in nonlinear least squares the structure of the problem is similar to yours. (And nonlinear least squares have received a lot of attention...)
Oct
14
comment Thinnest 2-fold coverings of the plane by congruent convex shapes
this is about teh case when only translations are allowed: link.springer.com/article/10.1007/s00493-012-2860-3
Oct
14
comment For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
Nonlinear least squares problems have this kind of structure. en.wikipedia.org/wiki/Non-linear_least_squares
Oct
14
revised For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
nothing to do with group theory IMHO
Oct
14
revised For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
added 70 characters in body
Oct
14
revised For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
a typo
Oct
14
comment For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
it works for a different dehomogenesation, cf. my edited answer.
Oct
14
revised For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
corrected the mistake in the answer
Oct
13
comment For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
oops, sorry, my bad. Now I recall seeing this $f^*_{SOS}=-\infty$ somewhere. Probably some other famous example is not as crazy...
Oct
13
answered For a Sum-of-Squares cost functions J(x) is it true that J(x)-j* is also SOS?
Oct
6
answered Hankel matrix commuting with a Jacobi matrix
Oct
2
comment maximizing a function involving factorial
I'd use the gamma function, which is nice and smooth, and you can use calculus on it. en.wikipedia.org/wiki/Gamma_function
Oct
1
revised Regular graphs with strongly regular edge colorings
added 188 characters in body
Oct
1
revised Regular graphs with strongly regular edge colorings
deleted 178 characters in body
Oct
1
comment Why is the spectrum of this matrix product invariant with respect to order of the multiplicants?
shouldn't $n$'s in the formula for $\sigma$ actually be $k$'s?
Oct
1
revised Regular graphs with strongly regular edge colorings
more info added