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Multidimensional Version of Lagrange's Problem on Mean Motion

Complex Variables 2009-06-27 v2 Commutative Algebra

Abstract

The famous mean motion problem which goes back to Lagrange as follows: to prove that any exponential polynomial with exponents on the imaginary axis has an average speed for the amplitude, whenever the variable moves along a horizontal line. It was completely proved by B. Jessen and H. Tornehave in Acta Math.77, 1945. Here we give its multidimensional version.

Cite

@article{arxiv.0804.1791,
  title  = {Multidimensional Version of Lagrange's Problem on Mean Motion},
  author = {S. Ju. Favorov},
  journal= {arXiv preprint arXiv:0804.1791},
  year   = {2009}
}

Comments

10 pages, Bibliography 17 items

R2 v1 2026-06-21T10:29:47.246Z