As an example of an inner product space that is not a Hilbert space, consider the inear space C[a, b] (Example 1.2) with inner product of f, g € C[a, b] defined to be (f. g) = f*f(x)g(x) dx. f a sequence of functions from C[a, b], {f} converges with respect to the norm lefined by this inner product, they will only converge “in the mean!" Since mean convergence does not necessarily imply uniform convergence it is seen that this paces does not have to be complete and the counterexample Example 4.4) shows hat this is actually so. Request explain which is this norm?
As an example of an inner product space that is not a Hilbert space, consider the inear space C[a, b] (Example 1.2) with inner product of f, g € C[a, b] defined to be (f. g) = f*f(x)g(x) dx. f a sequence of functions from C[a, b], {f} converges with respect to the norm lefined by this inner product, they will only converge “in the mean!" Since mean convergence does not necessarily imply uniform convergence it is seen that this paces does not have to be complete and the counterexample Example 4.4) shows hat this is actually so. Request explain which is this norm?
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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