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CONNECTIONS ON REAL PARABOLIC BUNDLES OVER A REAL CURVE

  • Received : 2013.08.26
  • Published : 2014.07.31

Abstract

We give analogous criterion to admit a real parabolic connection on real parabolic bundles over a real curve. As an application of this criterion, if real curve has a real point, then we proved that a real vector bundle E of rank r and degree d with gcd(r, d) = 1 is real indecomposable if and only if it admits a real logarithmic connection singular exactly over one point with residue given as multiplication by $-\frac{d}{r}$. We also give an equivalent condition for real indecomposable vector bundle in the case when real curve has no real points.

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References

  1. S. Amrutiya, Real parabolic bundles over a real curve, Proc. Indian Acad. Sci. (Math. Sci.). 124 (2014), 17-30. https://doi.org/10.1007/s12044-013-0155-2
  2. M. F. Atiyah, Complex analytic connections in fibre bundles, Trans. Amer. Math. Soc. 85 (1957), 181-207. https://doi.org/10.1090/S0002-9947-1957-0086359-5
  3. I. Biswas, A criterion for the existence of a flat connection on a parabolic vector bundle, Adv. Geom. 2 (2002), no. 3, 231-241.
  4. W. Crawley-Boevey, Indecomposable parabolic bundles and the existence of matrices in prescribed conjugacy class closures with product equal to the identity, Publ. Math. Inst. Hautes Etudes. Sci. 100 (2004), 171-207. https://doi.org/10.1007/s10240-004-0025-7
  5. A. Weil, Generalisation des fonctions abeliennes, J. Math. Pures Appl. 17 (1938), 47-87.