Given a Weil algebra $A$ and a smooth manifold $M$, we prove that the set $J^AM$ of kernels of regular $A$-points of $M$, $\check{M}^A$, has a differentiable manifold structure and $\check{M}^A\longrightarrow J^AM$ is a principal fiber bundle.
@article{107731,
author = {Ricardo J. Alonso},
title = {Jet manifold associated to a Weil bundle},
journal = {Archivum Mathematicum},
volume = {036},
year = {2000},
pages = {195-199},
zbl = {1049.58007},
mrnumber = {1785036},
language = {en},
url = {http://dml.mathdoc.fr/item/107731}
}
Alonso, Ricardo J. Jet manifold associated to a Weil bundle. Archivum Mathematicum, Tome 036 (2000) pp. 195-199. http://gdmltest.u-ga.fr/item/107731/
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