Ph.D.アルパ力
@ReseArpaca
とある草食系博士(工学)の匿名・馴れ合い垢/ENFP-T/アルパカは個人の趣味であり研究活動内容とは関係ありません/たまに研究の話する聡はよ帰ってこいbot/贔屓球団はお察しください
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Seeing so many responses made me think Twitter is so smart. I have a maths degree and I'd never even heard of the Jacobian Conjecture. Then I see that a bunch of people are saying "a counterexample isn't proof" and I actually think Twitter is so dumb.
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hello there the jacobian conjecture is false thanx to my close friend akhil for asking about it and my other close friend fable for working during the world cup final
((1+xy)^3 z + y^2 (1+xy) (4+3xy), y + 3 x (1+xy)^2 z + 3 x y^2 (4+3xy), 2 x - 3 x^2 y - x^3 z): \C^3\to \C^3, has jacobian determinant -2, and sends (0, 0, -1/4), (1, -3/2, 13/2), and (-1, 3/2, 13/2) to (-1/4, 0, 0)
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