Natural operators in the view of Cartan geometries

Martin Panák

Archivum Mathematicum (2003)

  • Volume: 039, Issue: 1, page 57-75
  • ISSN: 0044-8753

Abstract

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We prove, that r -th order gauge natural operators on the bundle of Cartan connections with a target in the gauge natural bundles of the order ( 1 , 0 ) (“tensor bundles”) factorize through the curvature and its invariant derivatives up to order r - 1 . On the course to this result we also prove that the invariant derivations (a generalization of the covariant derivation for Cartan geometries) of the curvature function of a Cartan connection have the tensor character. A modification of the theorem is given for the reductive and torsion free geometries.

How to cite

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Panák, Martin. "Natural operators in the view of Cartan geometries." Archivum Mathematicum 039.1 (2003): 57-75. <http://eudml.org/doc/249142>.

@article{Panák2003,
abstract = {We prove, that $r$-th order gauge natural operators on the bundle of Cartan connections with a target in the gauge natural bundles of the order $(1,0)$ (“tensor bundles”) factorize through the curvature and its invariant derivatives up to order $r-1$. On the course to this result we also prove that the invariant derivations (a generalization of the covariant derivation for Cartan geometries) of the curvature function of a Cartan connection have the tensor character. A modification of the theorem is given for the reductive and torsion free geometries.},
author = {Panák, Martin},
journal = {Archivum Mathematicum},
keywords = {Cartan geometry; gauge natural bundle; natural operator; natural sheaf; reductive Cartan geometry; gauge natural bundle; natural operator; natural sheaf; reductive Cartan geometry},
language = {eng},
number = {1},
pages = {57-75},
publisher = {Department of Mathematics, Faculty of Science of Masaryk University, Brno},
title = {Natural operators in the view of Cartan geometries},
url = {http://eudml.org/doc/249142},
volume = {039},
year = {2003},
}

TY - JOUR
AU - Panák, Martin
TI - Natural operators in the view of Cartan geometries
JO - Archivum Mathematicum
PY - 2003
PB - Department of Mathematics, Faculty of Science of Masaryk University, Brno
VL - 039
IS - 1
SP - 57
EP - 75
AB - We prove, that $r$-th order gauge natural operators on the bundle of Cartan connections with a target in the gauge natural bundles of the order $(1,0)$ (“tensor bundles”) factorize through the curvature and its invariant derivatives up to order $r-1$. On the course to this result we also prove that the invariant derivations (a generalization of the covariant derivation for Cartan geometries) of the curvature function of a Cartan connection have the tensor character. A modification of the theorem is given for the reductive and torsion free geometries.
LA - eng
KW - Cartan geometry; gauge natural bundle; natural operator; natural sheaf; reductive Cartan geometry; gauge natural bundle; natural operator; natural sheaf; reductive Cartan geometry
UR - http://eudml.org/doc/249142
ER -

References

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  1. Infinitesimally natural operators are natural, Differential Geometry and its Applications 2 (1992) 45–55. MR1244455
  2. Almost Hermitian Symmetric Structures I, (1994), ESI preprint. (1994) 
  3. Natural sheaves, Illinois J. Math. 31 (1987), 200–207. Zbl0602.58004MR0882109
  4. Transformation groups in differential geometry, Springer, 1972. (1972) Zbl0246.53031MR0355886
  5. The convenient setting of global analysis, AMS, SURV 53. 1997. 
  6. Natural operations in differential geometry, Springer, Berlin New York, 1993. (1993) MR1202431
  7. Foundations of differential geometry, Interscience Publishers, New York, London, 1963. (1963) MR0152974
  8. Natural operators on the bundle of Cartan connections, Proceedings of the Conference Differential Geometry and Applications, Brno, 1998, 285–292. (1998, 285–292) MR1708916
  9. Differential geometry, Springer, New York-Berlin-Heidelberg, 1997. (1997) Zbl0876.53001MR1453120

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