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Mahler measure information


In mathematics, the Mahler measure of a polynomial with complex coefficients is defined as

where factorizes over the complex numbers as

The Mahler measure can be viewed as a kind of height function. Using Jensen's formula, it can be proved that this measure is also equal to the geometric mean of for on the unit circle (i.e., ):

By extension, the Mahler measure of an algebraic number is defined as the Mahler measure of the minimal polynomial of over . In particular, if is a Pisot number or a Salem number, then its Mahler measure is simply .

The Mahler measure is named after the German-born Australian mathematician Kurt Mahler.

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Mahler measure

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In mathematics, the Mahler measure M ( p ) {\displaystyle M(p)} of a polynomial p ( z ) {\displaystyle p(z)} with complex coefficients is defined as M...

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Height function

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| . {\displaystyle L(P)=\sum _{i=0}^{n}|a_{i}|.} The Mahler measure M(P) of P is also a measure of the complexity of P. The three functions H(P), L(P)...

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Kurt Mahler

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1977. Mahler spoke fluent Japanese and was an expert photographer. Mahler's inequality Mahler measure Mahler polynomial Mahler volume Mahler's theorem...

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Gustav Mahler

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Gustav Mahler (German: [ˈɡʊstaf ˈmaːlɐ]; 7 July 1860 – 18 May 1911) was an Austro-Bohemian Romantic composer, and one of the leading conductors of his...

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List of unsolved problems in mathematics

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of a multipoint iteration without memory Lehmer's conjecture on the Mahler measure of non-cyclotomic polynomials The mean value problem: given a complex...

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Perron number

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matrix. Any Pisot number or Salem number is a Perron number, as is the Mahler measure of a monic integer polynomial. Borwein, Peter (2007). Computational...

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Touchard polynomials

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conjectured that the leftmost zero grows linearly with the index n. The Mahler measure M ( T n ) {\displaystyle M(T_{n})} of the Touchard polynomials can be...

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Christopher Deninger

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(1990) had shown that the entropy of the Γ-action on Xf is given by the Mahler measure m ( f ) := ( 2 π i ) − n ∫ R n / Γ log ⁡ | f ( z 1 , … , z n ) | d z...

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List of number theory topics

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Minkowski's theorem Pick's theorem Mahler's compactness theorem Mahler measure Effective results in number theory Mahler's theorem Brun sieve Function field...

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Salem number

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that it is indeed the smallest Salem number, and the smallest possible Mahler measure of an irreducible non-cyclotomic polynomial. Lehmer's polynomial is...

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Transcendental number theory

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applications to numerous classical problems and diophantine equations. Kurt Mahler in 1932 partitioned the transcendental numbers into 3 classes, called S...

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Geometrical properties of polynomial roots

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{\displaystyle M(p)=|a_{n}|\prod _{j=1}^{n}\max(1,|z_{j}|)} is the Mahler measure of p, then M ( p ) ≤ ∑ k = 0 n | a k | 2 . {\displaystyle M(p)\leq {\sqrt...

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Lehmer

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Lehmer Lehmer code Lehmer's conjecture (also known as: the Lehmer's Mahler measure problem), a problem in number theory, after Derrick Henry Lehmer Lehmer...

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List of women in mathematics

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Lalín, Argentine-Canadian number theorist, expert on L-functions and Mahler measure Ailsa Land, British operations researcher known for developing branch...

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Scientific phenomena named after people

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Prasanta Chandra Mahalanobis (প্রশান্ত চন্দ্র মহলানবিস) Mahler measure, Mahler's theorem – Kurt Mahler Malmquist bias, effect – Karl Gunnar Malmquist Malus's...

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David William Boyd

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sphere packing, number theory involving Diophantine approximation and Mahler's measure, and computer computations. Boyd received in 1963 his B.Sc. with Honours...

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Eduard Mahler

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Mahler participated in Oppolzer's research. On June 1, 1885, he was an appointed an assistant in the royal Austrian Institute of Weights and Measures...

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Das Lied von der Erde

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Gustav Mahler between 1908 and 1909. Described as a symphony when published, it comprises six songs for two singers who alternate movements. Mahler specified...

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Bombieri norm

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in polynomial factorization, where it has some advantages over the Mahler measure, according to Knuth (Exercises 20-21, pages 457-458 and 682-684). Grassmann...

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