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KAIST Math Problem of the Week

Solution: 2009-21 Rank and Eigenvalues

Let A=(aij) be an n×n matrix such that aij=cos(i-j)θ and θ=2π/n. Determine the rank and eigenvalues of A.

The best solution was submitted by Seong-Gu Jeong (정성구), 수리과학과 2007학번. Congratulations!

Here is his Solution of Problem 2009-21.

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  • 2009-21 Rank and Eigenvalues

Related

This entry was posted in solution and tagged 정성구 on November 20, 2009 by S. Oum.

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← 2009-21 Rank and Eigenvalues 2009-22 Integral and Limit →

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Email your solution to pow _at_ mathsci.kaist.ac.kr.

Please include “POW20##-##”(problem no) in the subject.

Points (2022 Spring)

김기수 (수리과학과 2018학번)
31/40
기영인 (2022학번)
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Kawano Ren (Kaisei Senior High School)
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