arXiv subjects
Publications and source records attributed to Maxime Chatal.
In this article, we prove the existence of a sectorial transformation to a polynomial normal form a a non-degenerate 1-resonant biholomorphism in ${\mathbb C}^n$ . We also give their holomorphic classification.
We prove that infinitely differentiable almost reducible quasi-periodic cocycles, under a Diophantine condition on the frequency vector, are almost reducible to a sequence of real constant cocycles with a sequence of real conjugations, up to a period doubling.
Given a quasiperiodic cocycle in sl(2, R) sufficiently close to a constant, we prove that it is almost-reducible in ultradifferentiable class under an adapted arithmetic condition on the frequency vector. We also give a corollary on the H{ö}lder regularity of the Lyapunov exponent.