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An abstraction for solving multi-domain problems using finite element methods

Published: December 5, 2025 | arXiv ID: 2512.06146v1

By: Koki Sagiyama, Lawrence Mitchell, David A. Ham

Potential Business Impact:

Solves hard math problems with mixed shapes.

Business Areas:
Field-Programmable Gate Array (FPGA) Hardware

We introduce a new abstraction for the representation and solution of multi-domain problems using finite element methods. This is an advance over previous work in that it achieves a single higher-level abstraction that represents multi-domain problems in the mixed variational problem formalism. We implemented our new abstraction in UFL and Firedrake, and validated our implementations solving a quad-triangle mixed-cell-type problem, a hex-quad mixed-cell-type problem, and a fluid-structure interaction benchmark problem.

Country of Origin
🇬🇧 United Kingdom

Page Count
23 pages

Category
Computer Science:
Mathematical Software