English

Nonlinear Young integrals via fractional calculus

Probability 2021-10-12 v1

Abstract

For H\"older continuous functions W(t,x)W(t,x) and φt\varphi_t, we define nonlinear integral abW(dt,φt)\int_a^b W(dt, \varphi_t) via fractional calculus. This nonlinear integral arises naturally in the Feynman-Kac formula for stochastic heat equations with random coefficients. We also define iterated nonlinear integrals.

Keywords

Cite

@article{arxiv.1503.00328,
  title  = {Nonlinear Young integrals via fractional calculus},
  author = {Yaozhong Hu and Khoa Le},
  journal= {arXiv preprint arXiv:1503.00328},
  year   = {2021}
}

Comments

arXiv admin note: substantial text overlap with arXiv:1404.7582

R2 v1 2026-06-22T08:41:08.703Z