Geodesic
Canonical Vector Heights on Algebraic $\text{K}3$ Surfaces with Picard Number Two
Canadian mathematical bulletin, Tome 46 (2003) no. 4, pp. 495-508

Voir la notice de l'article provenant de la source Cambridge University Press

Let $V$ be an algebraic $\text{K}3$ surface defined over a number field $K$ . Suppose $V$ has Picard number two and an infinite group of automorphisms $\mathcal{A}\,=\,\text{Aut(}V/K\text{)}$ . In this paper, we introduce the notion of a vector height $\mathbf{h}:\,V\,\to \,\text{Pic(}V\text{)}\,\otimes \,\mathbb{R}$ and show the existence of a canonical vector height $\mathbf{\hat{h}}$ with the following properties: $$\widehat{\mathbf{h}}\,\left( \sigma P \right)\,=\,{{\sigma }_{*}}\widehat{\mathbf{h}}\left( P \right)$$ $${{h}_{D}}(P)\,=\,\mathbf{\hat{h}}(P)\,\cdot \,D\,+\,O(1),$$ where $\sigma \,\in \,\mathcal{A},\,{{\sigma }_{*}}$ is the pushforward of $\sigma $ (the pullback of ${{\sigma }^{-1}}$ ), and ${{h}_{D}}$ is a Weil height associated to the divisor $D$ . The bounded function implied by the $O(1)$ does not depend on $P$ . This allows us to attack some arithmetic problems. For example, we show that the number of rational points with bounded logarithmic height in an $\mathcal{A}$ -orbit satisfies $${{N}_{\mathcal{A}(P)}}(t,\,D)\,=\,\#\{Q\,\in \,\mathcal{A}(P)\,:\,{{h}_{D}}(Q)\,<\,t\}\,=\,\frac{\mu (P)}{s\,\log \,\omega }\,\log t\,+\,O\left( \log \left( \mathbf{\hat{h}}(P)\,\cdot \,D\,+\,2 \right) \right).$$ Here, $\mu (P)$ is a nonnegative integer, $s$ is a positive integer, and $\omega $ is a real quadratic fundamental unit.
DOI : 10.4153/CMB-2003-048-x
Mots-clés : 11G50, 14J28, 14G40, 14J50, 14G05 
Baragar, Arthur. Canonical Vector Heights on Algebraic $\text{K}3$ Surfaces with Picard Number Two. Canadian mathematical bulletin, Tome 46 (2003) no. 4, pp. 495-508. doi: 10.4153/CMB-2003-048-x
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     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2003-048-x/}
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