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Takahiro Waki

I straightly say ordinary japanese.I say japanese honest opinion.I always fight with discussions on wikipedia.Also I recommend lang-8.com.I am on active in knowledge sites more than 4.

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  • 日本神奈川県Yokosuka-shi
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  • Last seen Jan 18 '20 at 18:46

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6 What are some of the big open problems in 3-manifold theory? Jun 16 '16
2 Does one pieces of every kind of connected polyominoes P in $\mathbb{R}^2$ which has no hole cover a plane? May 1 '17
1 Journals for undergraduates Jan 22 '17
-4 Is it possible to find all integer functions which satisfy $f(m!+n!)\mid f(m!)+f(n!)$ and $m+n \mid f(m)+f(n)$? Oct 29 '16

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