
doi: 10.1007/bf01203670
The author gives new formulas for the upper \(q\)-norm of the embedding \(I: W^ k_ p(Q)\to L_ q(Q)\) \((Q\subset \mathbb{R}^ n)\). She also proves necessary and sufficient conditions for a bounded linear operator to be semi-Fredholm.
bounded linear operator, semi-Fredholm, Contraction-type mappings, nonexpansive mappings, \(A\)-proper mappings, etc., (Semi-) Fredholm operators; index theories, Sobolev spaces and other spaces of ``smooth'' functions, embedding theorems, trace theorems
bounded linear operator, semi-Fredholm, Contraction-type mappings, nonexpansive mappings, \(A\)-proper mappings, etc., (Semi-) Fredholm operators; index theories, Sobolev spaces and other spaces of ``smooth'' functions, embedding theorems, trace theorems
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