"Smyth formula for Mahler measures"의 두 판 사이의 차이

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==introduction==
 
==introduction==
 
;thm '''[Smyth1981]'''
 
;thm '''[Smyth1981]'''
$$
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:<math>
m(1+x_1+x_2)=L_{-3}'(-1)=\frac{3\sqrt{3}}{4\pi}L_{-3}(2)=0.3230659472\cdots \label{Smyth1}
+
m(1+x_1+x_2)=L_{-3}'(-1)=\frac{3\sqrt{3}}{4\pi}L(\chi_{-3},2)=0.3230659472\cdots \label{Smyth1}
$$
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</math>
 
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where
$$
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:<math>L(\chi_{-3},s)=\sum_{n=1}^{\infty}\frac{\chi_{-3}(n)}{n^s}=\frac{1}{1^s}-\frac{1}{2^s}+\frac{1}{4^s}-\frac{1}{5^s}+\cdots</math>
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:<math>
 
m(1+x_1+x_2+x_3)=14\zeta'(-2)=\frac{7}{2\pi^2}\zeta(3)=0.4262783988\cdots
 
m(1+x_1+x_2+x_3)=14\zeta'(-2)=\frac{7}{2\pi^2}\zeta(3)=0.4262783988\cdots
$$
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</math>
 
 
  
 
==two proofs of \ref{Smyth1}==
 
==two proofs of \ref{Smyth1}==
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==expositions==
 
==expositions==
* Bertin, Marie-José, and MATILDE LALÍN. [http://www.dms.umontreal.ca/~mlalin/surveyMahlerfinal-revised.pdf Mahler Measure of Multivariable Polynomials] Women in Numbers 2: Research Directions in Number Theory 606 (2013): 125.
 
 
* Smyth, Chris. 2008. “The Mahler Measure of Algebraic Numbers: a Survey.” In Number Theory and Polynomials, 352:322–349. London Math. Soc. Lecture Note Ser. Cambridge: Cambridge Univ. Press. http://www.maths.ed.ac.uk/~chris/Smyth240707.pdf http://arxiv.org/pdf/math/0701397.pdf
 
* Smyth, Chris. 2008. “The Mahler Measure of Algebraic Numbers: a Survey.” In Number Theory and Polynomials, 352:322–349. London Math. Soc. Lecture Note Ser. Cambridge: Cambridge Univ. Press. http://www.maths.ed.ac.uk/~chris/Smyth240707.pdf http://arxiv.org/pdf/math/0701397.pdf
 
  
 
==articles==
 
==articles==
 
* '''[Smyth1981]''' Smyth, C. J. 1981. “On Measures of Polynomials in Several Variables.” Bulletin of the Australian Mathematical Society 23 (1): 49–63. doi:http://dx.doi.org/10.1017/S0004972700006894.
 
* '''[Smyth1981]''' Smyth, C. J. 1981. “On Measures of Polynomials in Several Variables.” Bulletin of the Australian Mathematical Society 23 (1): 49–63. doi:http://dx.doi.org/10.1017/S0004972700006894.
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2020년 11월 13일 (금) 23:45 기준 최신판

introduction

thm [Smyth1981]

\[ m(1+x_1+x_2)=L_{-3}'(-1)=\frac{3\sqrt{3}}{4\pi}L(\chi_{-3},2)=0.3230659472\cdots \label{Smyth1} \] where \[L(\chi_{-3},s)=\sum_{n=1}^{\infty}\frac{\chi_{-3}(n)}{n^s}=\frac{1}{1^s}-\frac{1}{2^s}+\frac{1}{4^s}-\frac{1}{5^s}+\cdots\] \[ m(1+x_1+x_2+x_3)=14\zeta'(-2)=\frac{7}{2\pi^2}\zeta(3)=0.4262783988\cdots \]

two proofs of \ref{Smyth1}

  • direct calculation
  • using regulator


expositions

articles