"Cyclotomic numbers and Chebyshev polynomials"의 두 판 사이의 차이

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==introduction==
  
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* borrowed from [[Andrews-Gordon identity]]
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*  quantum dimension and thier recurrence relation
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:<math>d_i=\frac{\sin \frac{(i+1)\pi}{k+2}}{\sin \frac{\pi}{k+2}}</math> satisfies
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:<math>d_i^2=1+d_{i-1}d_{i+1}</math> where <math>d_0=1</math>, <math>d_k=1</math>
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==diagonals of regular polygon==
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* length of hepagon
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$$d_i = \frac{\sin (\pi  (i+1)/7)}{\sin (\pi/7)} $$
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==chebyshev polynomials==
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* [http://pythagoras0.springnote.com/pages/4682477 체비셰프 다항식]
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* http://mathworld.wolfram.com/ChebyshevPolynomialoftheSecondKind.html<br> also obey the interesting [http://mathworld.wolfram.com/Determinant.html determinant] identity
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==history==
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* http://www.google.com/search?hl=en&tbs=tl:1&q=
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==related items==
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* [[sl(2) - orthogonal polynomials and Lie theory]]
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==articles==
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* [http://www.jstor.org/stable/2691048 Golden Fields: A Case for the Heptagon]<br>
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** Peter Steinbach, Mathematics Magazine Vol. 70, No. 1 (Feb., 1997), pp. 22-31
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[[분류:개인노트]]
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[[Category:quantum dimensions]]

2020년 11월 12일 (목) 19:51 판

introduction

\[d_i=\frac{\sin \frac{(i+1)\pi}{k+2}}{\sin \frac{\pi}{k+2}}\] satisfies \[d_i^2=1+d_{i-1}d_{i+1}\] where \(d_0=1\), \(d_k=1\)

 

diagonals of regular polygon

  • length of hepagon

$$d_i = \frac{\sin (\pi (i+1)/7)}{\sin (\pi/7)} $$

 

chebyshev polynomials

 

 

history

 

 

related items

 

 

articles