Self-similar fractals and arithmetic dynamics

Document Type: Research Paper

Author

1 Sharif University of Technology,Tehran‎, ‎Iran

2 ‎Institute for Advanced Study‎, ‎Princeton‎, ‎USA.

Abstract

‎The concept of self-similarity on subsets of algebraic varieties‎ ‎is defined by considering algebraic endomorphisms of the variety‎ ‎as `similarity' maps‎. ‎Self-similar fractals are subsets of algebraic varieties‎ ‎which can be written as a finite and disjoint union of‎ ‎`similar' copies‎. ‎Fractals provide a framework in which‎, ‎one can‎ ‎unite some results and conjectures in Diophantine geometry‎. ‎We‎ ‎define a well-behaved notion of dimension for self-similar fractals‎. ‎We also‎ ‎prove a fractal version of Roth's theorem for algebraic points on‎ ‎a variety approximated by elements of a fractal subset‎. ‎As a‎ ‎consequence‎, ‎we get a fractal version of Siegel's theorem on finiteness of integral points‎ ‎on hyperbolic curves and a fractal version of Faltings' theorem ‎on Diophantine approximation on abelian varieties‎.

Keywords

Main Subjects


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Volume 43, Issue 7
November and December 2017
Pages 2635-2653
  • Receive Date: 02 December 2016
  • Revise Date: 03 March 2018
  • Accept Date: 04 March 2018