# Wong-Zakai approximations with convergence rate for stochastic partial differential equations

**Authors:** Toshiyuki Nakayama, Stefan Tappe

arXiv: 1907.06202 · 2025-11-21

## TL;DR

This paper establishes a convergence rate for Wong-Zakai approximations applied to semilinear stochastic partial differential equations driven by finite-dimensional Brownian motion, with applications including the HJMM equation in finance.

## Contribution

It provides the first known convergence rate for Wong-Zakai approximations in this class of stochastic PDEs, extending previous theoretical results.

## Key findings

- Proved convergence rate for Wong-Zakai approximations
- Applied results to the HJMM equation in finance
- Demonstrated practical relevance through examples

## Abstract

The goal of this paper is to prove a convergence rate for Wong-Zakai approximations of semilinear stochastic partial differential equations driven by a finite dimensional Brownian motion. Several examples, including the HJMM equation from mathematical finance, illustrate our result.

## Full text

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## References

38 references — full list in the complete paper: https://tomesphere.com/paper/1907.06202/full.md

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Source: https://tomesphere.com/paper/1907.06202