計劃進修PhD/Research討論區(22) Research is truth seeking

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2017-06-08 01:55:26
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2017-06-08 02:09:04
我會咁樣formulate個題目
given n, consider A=(Z_2)^n
for (x1,...,xn), define s(x1,...,xn)=(xn,x1,...,x_{n-1})
(其實s只係permutation matrix)

question: for which n, x+s(x)+s^2(x)+...=0 for all x?

諗到依度都係決定去訓

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