activity
20012026
most citedAlgebraic entropy and the space of initial values for discrete dynamical systems

50 citations · 168 across the 28 of their papers we have counts for

collaborators

28 papers

math.DS2026

Degree growth, orbit graphs, and functoriality for birational dynamical systems

Tomoyuki Takenawa

The purpose of this paper is to give a natural divisor-theoretic formulation of the counting method introduced by Halburd for computing degree growth, in a form applicable to birat…

physics.ao-ph2026

Improvements to the post-processing of weather forecasts using machine learning and feature selection

Kazuma Iwase, Tomoyuki Takenawa

This study aims to develop and improve machine learning-based post-processing models for precipitation, temperature, and wind speed predictions using the Mesoscale Model (MSM) data…

nlin.SI2025

On the geometry of a 4-dimensional extension of a -Painlevé I equation with symmetry type

Alexander Stokes, Tomoyuki Takenawa, Adrian Stefan Carstea

We present a geometric study of a four-dimensional integrable discrete dynamical system which extends the autonomous form of a -Painlevé I equation with symmetry of type $A_1^{(…

math.AG2024

Space of initial conditions for the four-dimensional Garnier system revisited

Tomoyuki Takenawa

A geometric study is given for the 4-dimensional Garnier system. By the resolution of indeterminacy, the group of its Bäklund transformations is lifted to a group of pseudo-isomorp…

physics.ao-ph2023

Interpolation of mountain weather forecasts by machine learning

Kazuma Iwase, Tomoyuki Takenawa

Recent advances in numerical simulation methods based on physical models and their combination with machine learning have improved the accuracy of weather forecasts. However, the a…

math.DS2022

Solving the Quispel-Roberts-Thompson maps using Kajiwara-Noumi-Yamada's representation of elliptic curves

Xing Li, Tomoyuki Takenawa

It is well known that the dynamical system determined by a Quispel-Roberts-Thompson map (a QRT map) preserves a pencil of biquadratic polynomial curves on ${\mathbb{CP}}^1 \times {…