Governing Equation Discovery from Data Based on Differential Invariants
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Abstract (arXiv)
The explicit governing equation is one of the simplest and most intuitive forms for characterizing physical laws. However, directly discovering partial differential equations (PDEs) from data poses significant challenges, primarily in determining relevant terms from a vast search space. Symmetry, as a crucial prior knowledge in scientific fields, has been widely applied in tasks such as designing equivariant networks and guiding neural PDE solvers. In this paper, we propose a pipeline for governing equation discovery based on differential invariants, which can losslessly reduce the search space of existing equation discovery methods while strictly adhering to symmetry. Specifically, we compute the set of differential invariants corresponding to the infinitesimal generators of the symmetry group and select them as the relevant terms for equation discovery. Taking DI-SINDy (SINDy based on Differential Invariants) as an example, we demonstrate that its success rate and accuracy in PDE discovery surpass those of other symmetry-informed governing equation discovery methods across a series of PDEs.
Key facts. Cited by 4 papers in the map (data through 14 Oct 2026). Builds on 39 of its 59 references that are in the map. First posted on arXiv 24 May 2025.
Builds on
39 of 59 references.
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27 more
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Built on by
Citing papers per year: 2026: 4.
4 papers.
- 2026Adaptive Symmetry Discovery for Dynamical System Identificationcited by 3
- 2026Efficient Learning and Symmetry Discovery under Exact Invariancescited by 3
- 2026EqOD: Symmetry-Informed Stability Selection for PDE Identificationcited by 0
- 2026LieDiscover: Adaptive Symbolic Library Construction for Explicit Open-form Symmetry Discoverycited by 0
- 2026LieDiscover: Adaptive Symbolic Library Construction for Explicit Open-form Symmetry Discovery27 Sep 2026
- 2026Efficient Learning and Symmetry Discovery under Exact Invariances7 Sep 2026
- 2026Adaptive Symmetry Discovery for Dynamical System Identification8 Aug 2026
- 2026EqOD: Symmetry-Informed Stability Selection for PDE Identification12 May 2026