# The Helmholtz decomposition of decreasing and weakly increasing vector fields

@article{Petrascheck2015TheHD, title={The Helmholtz decomposition of decreasing and weakly increasing vector fields}, author={D. Petrascheck and Reinhard Folk}, journal={arXiv: Classical Physics}, year={2015} }

Helmholtz decomposition theorem for vector fields is presented usually with too strong restrictions on the fields. Based on the work of Blumenthal of 1905 it is shown that the decomposition of vector fields is not only possible for asymptotically weakly decreasing vector fields, but even for vector fields, which asymptotically increase sublinearly. Use is made of a regularizatin of the Greens function and the mathematics of the proof is formulated as simply as possible. We also show a few…

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