Publications

A scalable Ewald-free BIE framework for periodic Stokes flow via hierarchical proxy sums.

Published in arXiv, 2026

We present a BIE framework for three-dimensional particulate Stokes flow in periodic pipes with circular cross-sections, wall-bounded doubly-periodic, and triply periodic geometries that uses only the free-space Green’s function and avoids both Ewald summation and the extended linear system. Proxy sources placed on equivalent surfaces of the kernel-independent FMM (KIFMM) form the auxiliary basis, and contributions from far image boxes are captured by a hierarchical proxy sum made absolutely convergent by a net-force-zero compatibility condition.

Recommended citation: http://arxiv.org/abs/2605.30805