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  • Department News

 

 

  • Seminars and Colloquia

11/24(Mon) 16:30
임숙경 교수(Univ. of Cincinnati)
BK21 Seminar

11/25(Tue) 16:30
Hana Kim(NIMS)
Discrete Math

11/25(Tue) 16:30
Jae Kyoung Kim(The Ohio State Univ.)
MathSci Seminar

11/27(Thu) 10:00
조광래(항공우주연구원)
NIMS Colloquium

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  • Conferences and Workshops

12/10(Wed) ~ 12/12(Fri)
E6-1, Room 1501
Conf. / Workshop

7/6(Mon) ~ 7/10(Fri)
KI Building, KAIST
Conf. / Workshop

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  • 2014-23 Differentiable function
    Let \(f:[0,1]\to \mathbb R\) be a differentiable function with \(f(0)=0\), \(f(1)=1\). Prove that for every positive integer \(n\), there exist \(n\) distinct numbers \(x_1,x_2,\ldots,x_n\in(0,1)\) such that \[ \frac{1}{n}\sum_{i=1}^n \frac{1}{f'(x_i)}=1.\]

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