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Parametrized Jacobian Problem over ℂn and its Complete Resolution
Abstract
We formulate a parametrized Jacobian Problem over ℂn by incorporating independent scale parameters into the linear part of a polynomial map via polar decomposition. We prove that requiring the Jacobian determinant to remain constant uniformly across the parameter space decouples the Jacobian equation into a system enforcing the vanishing of all principal minors of the perturbation matrix. This system strictly forces lower triangularization up to variable permutations, establishing a necessary and sufficient condition for polynomial invertibility and providing an explicit, canonical scheme for constructing the inverse map in every dimension.
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BibTeX
@misc{yang2026parametrized,
title = {{Parametrized Jacobian Problem over $\mathbbC^n$ and its Complete Resolution}},
author = {Yisong Yang},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.35918},
eprint = {2610.35918},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.35918},
}
RIS
TY - UNPB
TI - Parametrized Jacobian Problem over ℂ^n and its Complete Resolution
AU - Yisong Yang
PY - 2026
DA - 2026/10/09
PB - arXiv
DO - 10.48550/arxiv.2610.35918
UR - https://arxiv.org/abs/2610.35918
AB - We formulate a parametrized Jacobian Problem over ℂ^n by incorporating independent scale parameters into the linear part of a polynomial map via polar decomposition. We prove that requiring the Jacobian determinant to remain constant uniformly across the parameter space decouples the Jacobian equation into a system enforcing the vanishing of all principal minors of the perturbation matrix. This system strictly forces lower triangularization up to variable permutations, establishing a necessary and sufficient condition for polynomial invertibility and providing an explicit, canonical scheme for constructing the inverse map in every dimension.
ER -