Regulous vector bundles

Wojciech Kucharz and Maciej Zieliński

Mathematische Nachrichten, 2018, vol. 291, issue 14-15, 2252-2271

Abstract: Among recently introduced new notions in real algebraic geometry is that of regulous functions. Such functions form a foundation for the development of regulous geometry. Several interesting results on regulous varieties and regulous sheaves are already available. In this paper, we define and investigate regulous vector bundles. We establish algebraic and geometric properties of such vector bundles, and identify them with stratified‐algebraic vector bundles. Furthermore, using new results on curve‐rational functions, we characterize regulous vector bundles among families of vector spaces parametrized by an affine regulous variety. We also study relationships between regulous and topological vector bundles.

Date: 2018
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https://doi.org/10.1002/mana.201700442

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