Geodesic
Stability of the index of a linear relation under compact perturbations
Dana Gheorghe 1
1 Facultatea de matematica-informatica Universitatea din Pitesti Str. Targul din Vale, nr. 1 110040 Pitesti, Arges, Romania and Université des Sciences et Technologies de Lille 59655 Villeneuve d'Ascq Cedex, France
Studia Mathematica, Tome 180 (2007) no. 1, pp. 95-102 Cet article a éte moissonné depuis la source Institute of Mathematics Polish Academy of Sciences

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We prove the stability under compact perturbations of the algebraic index of a Fredholm linear relation with closed range acting between normed spaces. Our main tool is a result concerning the stability of the index of a complex of Banach spaces under compact perturbations.
DOI : 10.4064/sm180-1-7
Keywords: prove stability under compact perturbations algebraic index fredholm linear relation closed range acting between normed spaces main tool result concerning stability index complex banach spaces under compact perturbations

Dana Gheorghe  1

1 Facultatea de matematica-informatica Universitatea din Pitesti Str. Targul din Vale, nr. 1 110040 Pitesti, Arges, Romania and Université des Sciences et Technologies de Lille 59655 Villeneuve d'Ascq Cedex, France 
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Dana Gheorghe. Stability of the index of a linear relation
 under compact perturbations. Studia Mathematica, Tome 180 (2007) no. 1, pp. 95-102. doi: 10.4064/sm180-1-7

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