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Trinity College Dublin

TCD Mathematics

School of Mathematics

Mathematics Course 321 - Functional Analysis


Exercise sheets

Exercises 1 [Due Friday October 17th 2008.]
Basic metric space theory. (Bounded) (continuous) functions on a finite set. (There are also some comments on the solutions to this sheet.)
Exercises 2 [Due Monday November 10th.]
Facts on complete metrics, uniform continuity, Baire category. (Some comments on the solutions.)
Exercises 3 [Due Friday November 28th.]
Fact about little ell-p spaces and separability. (Some comments on the solutions.)
Exercises 4 [Due Monday January 12th.]
Practice with big-ell-p norms. Bounded linear operators as a new space. (Some comments on the solutions.)
Exercises 5 [Due Friday January 30th.]
One exercise on the closed graph theorem. Partial orders and Zorn's lemma. (Some comments on the solutions.)
Exercises 6 [Due Friday February 13th.]
More on partial orders. Hamel bases. (Some comments on the solutions.)
Exercises 7 [Due Thursday March 5th.]
Norms on direct sums (of normed spaces); external versus internal direct sum; dual of p-norm on direct sum is q-norm on direct sum of duals; 2-norm on direct sum of Hilbert spaces gives a Hilbert space. (Some comments on the solutions.)
Exercises 8 [Due Monday March 30th.]
Projections in Banach spaces and orhtogonal projections in Hilbert spaces. (Some comments on the solutions.)