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Pointwise lower and upper bounds for eigenfunctions of ordinary differential operators

✍ Scribed by Tassilo Küpper


Publisher
Springer-Verlag
Year
1976
Tongue
English
Weight
420 KB
Volume
27
Category
Article
ISSN
0029-599X

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Lower and upper bounds for the perturbat
✍ Jiu Ding 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 202 KB

Let X and Y be Banach spaces, and let T : X -Y be a bounded linear operator with closed range. In this paper, we give optimal lower and upper bounds for the perturbation of consistent operator equations Tz = 1/, and more general least-squares problems in Hilbert spaces.