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Encyclopedia > Clausen function

In mathematics, the Clausen function is defined by the following integral: Wikibooks Wikiversity has more about this subject: School of Mathematics Wikiquote has a collection of quotations by or about: Mathematics Look up Mathematics in Wiktionary, the free dictionary Wikimedia Commons has more media related to: Mathematics Bogomolny, Alexander: Interactive Mathematics Miscellany and Puzzles. ...

More generally, one defines

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It is related to the polylogarithm by The polylogarithm (also known as Jonquiéres function) is a special function and may be defined for all s and |z|<1 by: Both the parameter s and the argument z are taken to be complex numbers. ...

.

Ernst Kummer and Rogers give the relation Ernst Eduard Kummer (29 January 1810 in Sorau, Brandenburg, Prussia - 14 May 1893 in Berlin, Germany) was a German mathematician. ...

valid for .


For rational values of θ / π (that is, for θ / π = p / q for some integers p and q), the function sin(nθ) can be understood to represent a periodic orbit of an element in the cyclic group, and thus can be expressed as a simple sum involving the Hurwitz zeta function. In mathematics, a cyclic group is a group that can be generated by a single element, in the sense that the group has an element a (called a generator of the group) such that every element of the group is a power of a. ... In mathematics, the Hurwitz zeta function is one of the many zeta functions. ...


References

  • Milton Abramowitz and Irene A. Stegun, Handbook of Mathematical Functions, (1964) Dover Publications, New York. ISBN 486-61272-4 . See section 27.8
  • Leonard Lewin, (Ed.). Structural Properties of Polylogarithms (1991) American Mathematical Society, Providence, RI. ISBN 0-8218-4532-2

  Results from FactBites:
 
Clausen function - Wikipedia, the free encyclopedia (293 words)
The Clausen function can also be viewed as a regularization method to give a meaning to the divergent Fourier series:
This regularization technique is similar to zeta function regularization in physics.
A series acceleration for the Clausen function is given by
Clausen - Wikipedia, the free encyclopedia (184 words)
Jens Clausen (1891 – 1969), a Danish botanist and geneticist
Jørgen Mads Clausen (born 1948), a Danish billionaire
Thomas Clausen (born 1949), a Danish jazz pianist
  More results at FactBites »


 
 

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