1* Let X be the space of sequences of real numbers with only finitely many nonzero terms, with the norm ||x|| = sup en il, for every x = (§;). Let T : X → X be defined by 1 1 1 Tx = (§1, for every x = (§;) = (§1,52, … ). (a) Show that T is linear and bounded, and find ||T||. (b) Show that T : X → X is bijective. (c) Show that the inverse T-l of T is not bounded.
1* Let X be the space of sequences of real numbers with only finitely many nonzero terms, with the norm ||x|| = sup en il, for every x = (§;). Let T : X → X be defined by 1 1 1 Tx = (§1, for every x = (§;) = (§1,52, … ). (a) Show that T is linear and bounded, and find ||T||. (b) Show that T : X → X is bijective. (c) Show that the inverse T-l of T is not bounded.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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