On a family of quasi-arithmetic means. (Summary).
G. Mayor (1994)
Aequationes mathematicae
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G. Mayor (1994)
Aequationes mathematicae
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Justyna Jarczyk, Janusz Matkowski (2006)
Annales Polonici Mathematici
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Under the assumption of twice continuous differentiability of some of the functions involved we determine all the weighted quasi-arithmetic means M,N,K such that K is (M,N)-invariant, that is, K∘(M,N) = K. Some applications to iteration theory and functional equations are presented.
CLYDE F. MARTIN (1971)
Aequationes mathematicae
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T.D. HOWROYD (1971)
Aequationes mathematicae
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Jarczyk, Justyna (2007)
JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
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Zoltán Daróczy, Zsolt Páles (2013)
Banach Center Publications
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The aim of this note is to characterize the real coefficients p₁,...,pₙ and q₁,...,qₖ so that be valid whenever the vectors x₁,...,xₙ, y₁,...,yₖ satisfy y₁,...,yₖ ⊆ convx₁,...,xₙ. Using this characterization, a class of generalized weighted quasi-arithmetic means is introduced and several open problems are formulated.
Augustus DeMorgan
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Brahmagupta
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Florian Luca, Anirban Mukhopadhyay, Kotyada Srinivas (2010)
Acta Arithmetica
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Yahya Ould Hamidoune, Alain Plagne (2002)
Acta Arithmetica
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(2009)
Acta Arithmetica
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Yong-Gao Chen (2005)
Acta Arithmetica
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Andrzej Grzegorczyk (1956)
Fundamenta Mathematicae
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