| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4663782 | Acta Mathematica Scientia | 2013 | 15 Pages |
Abstract
When A ∈ ℒℛ(H) and B ∈ ℒℛ(K) are given, for B ∈ ℒℛ(K) we denote by MC the linear relation acting on the infinite dimensional separable Hilbert space H ⊕ K of the form . In this paper, we give the necessary and sufficient conditions on A and B for which MC is upper semi-Fredholm with negative index or Weyl for some C ∈ ℒℛ(K, H).
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