A uniform field-of-definition/field-of-moduli bound for dynamical systems on PN
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DOI: 10.1016/j.jnt.2018.08.011
Abstract: Let $f:\mathbb{P}^N\to\mathbb{P}^N$ be an endomorphism of degree $d\ge2$ defined over $\overline{\mathbb{Q}}$ or $\overline{\mathbb{Q}}_p$, and let $K$ be the field of moduli of $f$. We prove that there is a field of definition $L$ for $f$… read more here.
Keywords: field; field moduli; uniform field; field definition ... See more keywords