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第六百零五章 埃尔德什数(2 / 2)

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埃尔的什这个有志向的数学家当然希望不仅仅是数学,就是其他科学也能快速的全面发展起来。

而这样的发展,当然需要把不通行业的各个学科给发展起来。

但是想要有效结合,就需要把人联系起来。

如果想要把人联系起来,就会需要埃尔的什数。

埃尔德什数(简称埃数)(Erd?s number),根据现代匈牙利数学家保罗·埃尔德什,这个最多产的数学家命名,是描述数学论文中一个作者与埃尔德什的“合作距离”的一种方式。菲尔茨奖获得者的埃数中位数最低时为3。

保罗·埃尔德什的埃数是0,与其合写论文的埃数是1,一个人至少要k个中间人(合写论文的关系)才能与保罗·埃尔德什有关联,则他的埃数是k+1。例如:保罗·埃尔德什与A合写论文,A与B合写论文,但保罗·埃尔德什没有与B合写论文,则A的埃数是1,B的埃数是2。

有贝肯数:以演员凯文·贝肯为中心,以是否一起演出描述与凯文·贝肯的距离,也因此产生着名的游戏:六度空间(Six Degrees of Kevin Bacon)。少数人同时拥有埃数与贝肯数,例如Danica McKellar,她的埃数是4,贝肯数是2;Daniel Kleitman的埃数是1,贝肯数是2,是已知数字最小的。

秀策数:围棋中用来描述玩家和棋圣本因坊秀策之间的距离。

Stringfield数:描述幽浮学的研究者与第一位幽浮学家Leonard H. Stringfield之间的距离。

埃尔的什说:“现在只是初级的水平,以后肯定会变成一个人极其重要的学科的。”

那个人说:“何以见得这不是一个无聊的游戏呢?”

埃尔的什说:“任何一个现在看似简单的无关紧要的东西,最后一定会发展成更好更复杂更有用的东西。现在是初等埃数论,以后会有高等埃数论。而且对社会贡献巨大。人类甚至脱离不了这个理论的影响。”

那个人细想,认为有理。

他说:“所以很多现在看似玩闹的小东西,以后都会发展成学问。”

他一边说,一边觉得有很对学问可能跟其他学问相互吻合,殊途同归而已。

喜欢数学心请大家收藏:数学心本站更新速度全网最快。

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