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第四百一十三章 解惑(1 / 2)

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413章

任意实数阶或复数阶积分和导数通常被称为分数阶微积,而分数阶微积分在粘弹性力学、统计与随机过程、动力学系统控制和光学信号处理等方面均有应用,具有丰富的理论内涵。

察里他们这个课题组,就是利用连续函数和 Ba nac h压缩映像理论,研究分数阶导数的非线性微分方程边值存在解的问题。

不需要做太过深入的了解,程诺只需要知道个大概,就能够从容的应对任何问题。

程诺一页页不急不缓的往后翻着,虽然程诺没有刻意加快速度,但在察里的那三位课题组同组成员的眼中,就像是见了鬼一样。

他,这是真的在认真看,而不是在敷衍我们?

这样想着,那个男生的目光再次落在察里同学身上,满是哀怨。意思是说,“这个不着调的家伙就是你小子请过来的?”

察里再次欲哭无泪。

时间一分一秒的流逝,十几分钟后,程诺将手中的那摞A4纸放回桌面,笑道,“我刚才从头到尾把你们的研究的内容看了一遍,如果我猜的不错的话,你们应该是在最后基于Banach压缩映像的微分方程边值分析遇到麻烦了吧?”

三人将目光齐刷刷的落在察里同学身上。

为啥又是我?!

察里一翻白眼,无语的道,“不要看我,我只是和大神说请他帮个忙,并没有说我们遇到的具体问题。不信的话,你们问大神?”

程诺从一边的桌上拿过几张空白的草稿纸,一边说道,“察里确实没有给我提及过具体的内容。不过这也不难猜,你们的研究报告,在最后的边值分析那部分,缺失了很大部分的证明过程,我想应该不是刻意漏掉的吧。”

那个男生点头,算是认可的程诺的话,“确实,在这部分,我们虽然知道想要的结果是什么,但具体的那个过程,我们几个想了好几天,都没有弄出个成果来。”

刚刚程诺的表现,已经让男生对程诺的印象改观了一些。

这个学弟,似乎并非那么寻常!

于是他试探的问道,“既然你知道了我们遇到的麻烦,那有办法解决吗?”

程诺笑了笑,竖起一根手指摆了摆,缓缓吐出两个字,“不难!”

察里同学面色一喜。

男生洛奇嘴角一抽。

为啥我有一种,观看逼王现场直播的感觉?

真相了的洛奇,静等着程诺开口。

“我想,你们之所以在这个问题上墨迹这么长时间,有很大一部分原因,是用错了方法。”

“用错了方法?”

“对!”程诺用笔帽轻轻敲击桌面,“我先问你一个问题,什么是分数阶导数的非线性微分方程?”

男生下意识的回答,“分数阶导数的非线性微分方程,可以用两个公式来概括:f 一( z)+(D +Dt)(z)一f( x,(z)),z∈(0,1),还有y(0)=0=y(1)。”

程诺十分满意的点头,“说的没错。但你是否还记得,这个分阶导数,还有它的存在性条件?”

存在性条件?洛奇一愣。

程诺解释道,“ Di ri chle t边值一定的情况下,分阶导数的微分方程就会存在一个这样的存在性条件。”

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