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Let f : X --> X be an endomorphism of a normal projective variety defined over a global field K, and let D_0,D_1,D_2,... be divisor classes that form a Jordan block with eigenvalue b for the action of f^* on Pic(X) tensored with C. We…

Number Theory · Mathematics 2017-08-29 Shu Kawaguchi , Joseph H. Silverman

A proof of the Jordan canonical form, suitable for a first course in linear algebra, is given. The proof includes the uniqueness of the number and sizes of the Jordan blocks.

Rings and Algebras · Mathematics 2010-12-14 H. Azad

For a dominant rational self-map on a smooth projective variety defined over a number field, Kawaguchi and Silverman conjectured that the (first) dynamical degree is equal to the arithmetic degree at a rational point whose forward orbit is…

Algebraic Geometry · Mathematics 2017-01-27 Yohsuke Matsuzawa , Kaoru Sano , Takahiro Shibata

Let $f \in Q(z)$ be a polynomial or rational function of degree 2. A special case of Morton and Silverman's Dynamical Uniform Boundedness Conjecture states that the number of rational preperiodic points of $f$ is bounded above by an…

Number Theory · Mathematics 2015-01-05 Robert L. Benedetto , Ruqian Chen , Trevor Hyde , Yordanka Kovacheva , Colin White

We study canonical heights for plane polynomial mappings of small topological degree. In particular, we prove that for points of canonical height zero, the arithmetic degree is bounded by the topological degree and hence strictly smaller…

Number Theory · Mathematics 2012-10-25 Mattias Jonsson , Elizabeth Wulcan

We define an "ample canonical height" for an endomorphism on a projective variety, which is essentially a generalization of the canonical heights for polarized endomorphisms introduced by Call--Silverman. We formulate a dynamical analogue…

Algebraic Geometry · Mathematics 2018-02-05 Takahiro Shibata

Given an endomorphism f of projective space, we exhibit explicit bounds on the difference between the naive height of a divisor and its canonical height relative to f.

Number Theory · Mathematics 2022-07-18 Patrick Ingram

Let $X$ be a smooth projective variety defined over a number field $K$ and let $\varphi: X \to X$ a polarized endomorphism of degree $d \geq 2$. Let $\widehat{h}_{\varphi}$ be the canonical height associated to $\varphi$ on…

Number Theory · Mathematics 2024-10-30 Jit Wu Yap

Let K be an algebraic number field. For a degree d rational morphism of projective n-space defined over K let R denote its minimal resultant ideal. For a fixed height function on the moduli space of dynamical systems this paper shows that…

Number Theory · Mathematics 2014-08-14 Brian Stout , Adam Towsley

Let K be a function field in one variable over an arbitrary field F. Given a rational function f(z) in K(z) of degree at least two, the associated canonical height on the projective line was defined by Call and Silverman. The preperiodic…

Number Theory · Mathematics 2007-05-23 Robert L. Benedetto

In this paper, we calculate the Jordan decomposition (or say, the Jordan canonical form) for a class of non-symmetric Ornstein-Uhlenbeck operators with the drift coefficient matrix being a Jordan block and the diffusion coefficient matrix…

Probability · Mathematics 2013-02-21 Yong Chen , Ying Li

We construct height functions defined stochastically on projective varieties equipped with endomorphisms, and we prove that these functions satisfy analogs of the usual properties of canonical heights. Moreover, we give a dynamical…

Number Theory · Mathematics 2018-06-05 Vivian Olsiewski Healey , Wade Hindes

We prove the existence of a gap around zero for canonical height functions associated to endomorphisms of projective spaces defined over complex function fields. We also prove that if the rational points of height zero are Zariski dense,…

Algebraic Geometry · Mathematics 2024-04-15 Yugang Zhang

We discuss a new method to compute the canonical height of an algebraic point on a hyperelliptic jacobian over a number field. The method does not require any geometrical models, neither $p$-adic nor complex analytic ones. In the case of…

Number Theory · Mathematics 2019-02-20 Robin de Jong , J. Steffen Müller

We prove, for the canonical height defined by Silverman [15] on monomial maps, the existence of effective lower bounds for heights of points with Zariski dense orbit, for cases with endomorphisms induced by matrices with real Jordan form.

Number Theory · Mathematics 2019-01-15 Jorge Mello

Let f in Q[z] be a polynomial of degree d at least two. The associated canonical height \hat{h}_f is a certain real-valued function on Q that returns zero precisely at preperiodic rational points of f. Morton and Silverman conjectured in…

Number Theory · Mathematics 2008-12-03 Robert L. Benedetto , Benjamin Dickman , Sasha Joseph , Benjamin Krause , Daniel Rubin , Xinwen Zhou

We show that for a polynomial map, the size of the Jordan blocks for the eigenvalue 1 of the monodromy at infinity is bounded by the multiplicity of the reduced divisor at infinity of a good compactification of a general fiber. The…

Algebraic Geometry · Mathematics 2007-05-23 Alexandru Dimca , Morihiko Saito

The Kawaguchi--Silverman conjecture predicts that if $f\colon X \dashrightarrow X$ is a dominant rational-self map of a projective variety over $\overline{\mathbb{Q}}$, and $P$ is a $\overline{\mathbb{Q}}$-point of $X$ with Zariski-dense…

Algebraic Geometry · Mathematics 2018-02-22 John Lesieutre , Matthew Satriano

Let $f: \mathbb{A}^2 \to \mathbb{A}^2$ be a polynomial automorphism of dynamical degree $\delta \geq 2$ over a number field $K$. (This is equivalent to say that $f$ is a polynomial automorphism that is not triangularizable.) Then we…

Number Theory · Mathematics 2007-05-23 Shu Kawaguchi

In this paper we prove an asymptotically sharp Bernstein-type inequality for polynomials on analytic Jordan arcs. Also a general statement on mapping of a domain bounded by finitely many Jordan curves onto a complement to a system of the…

Complex Variables · Mathematics 2015-06-05 Sergei Kalmykov , Béla Nagy
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