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arXiv · 2111.12891

A Helmholtz-type decomposition for the space of symmetric matrices

Evan Miller·Eric Sawyer
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Abstract

In this paper, we introduce a Helmholtz-type decomposition for the space of square integrable, symmetric-matrix-valued functions analogous to the standard Helmholtz decomposition for vector fields. This decomposition provides a better understanding of the strain constraint space, which is important to the Navier--Stokes regularity problem. In particular, we give a full characterization the orthogonal complement of the strain constraint space and investigate the geometry of the eigenvalue distribution of matrices in the strain constraint space.

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Evan Miller, Eric Sawyer. 2023-08-22. A Helmholtz-type decomposition for the space of symmetric matrices. https://doi.org/10.1090/btran%2F167

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