A note on triangular automorphisms.
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Karaś, Marek (2008)
Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica
Gabriella Margaria (2000)
Bollettino dell'Unione Matematica Italiana
Melnik, Irina A., Mironov, Andrey E. (2010)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
John Shackell (1995)
Annales de l'institut Fourier
John Shackell (1995)
Annales de l'institut Fourier
We consider the asymptotic growth of Hardy-field solutions of algebraic differential equations, e.g. solutions with no oscillatory component, and prove that no ‘sub-term’ occurring in a nested expansion of such can tend to zero more rapidly than a fixed rate depending on the order of the differential equation. We also consider series expansions. An example of the results obtained may be stated as follows.Let be an element of a Hardy field which has an asymptotic series expansion in , and ,...
Julien Sebag (2010)
Annales de la faculté des sciences de Toulouse Mathématiques
In this article, we introduce a special class of non complete webs, the NN-webs. We also study the algebraic and geometric properties of these webs.
Olivier Ripoll, Julien Sebag (2010)
Annales de la faculté des sciences de Toulouse Mathématiques
Dans cet article, nous étudions le problème de l’existence de polynômes de Darboux dans pour la dérivation .
Malikov, Fyodor (2008)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Klaus Wolffhardt (1971)
Manuscripta mathematica
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