English

Convergence of rescaled "true" self-avoiding walks to the T\'oth-Werner "true" self-repelling motion

Probability 2025-10-03 v3

Abstract

We prove that the rescaled ``true'' self-avoiding walk (n2/3Xnt)tR+(n^{-2/3}X_{\lfloor nt \rfloor})_{t\in\mathbb{R}_+} converges weakly as nn goes to infinity to the ``true'' self-repelling motion constructed by T\'oth and Werner. The proof features a joint generalized Ray-Knight theorem for the rescaled local times processes and their merge and absorption points as the main tool for showing both the tightness and convergence of the finite dimensional distributions. Thus, our result can be seen as an example of establishing a functional limit theorem for a family of processes by inverting the joint generalized Ray-Knight theorem.

Keywords

Cite

@article{arxiv.2502.10960,
  title  = {Convergence of rescaled "true" self-avoiding walks to the T\'oth-Werner "true" self-repelling motion},
  author = {Elena Kosygina and Jonathon Peterson},
  journal= {arXiv preprint arXiv:2502.10960},
  year   = {2025}
}

Comments

38 pages, 3 figures. Clarified some points and shortened some arguments from the previous version