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12 Feb 2020: b) We say that a measurable f : Rn! C is in weak-Lp(Rn), written f 2 Lp,w(Rn) ifthere exists a constant C such that. ... Deduce. N[. i=1. Bi. 6 3n. kX. j=1. Bij. b) () Suppose {Bj : j 2 J} is an arbitrary collection of balls in Rn such that each ballhas

4 Feb 2020: b) Construct a continuous surjection p : T2 K such that for every x K, p1(x) consists of exactly two points.(c) Draw inside the identification square for the Klein bottle ... Suppose that N N is a positive integer such that2E/F < N for every possible

4 Mar 2020: a) Show that S is a dense subset of Hs(Rn). b) Find a condition on s such that x 2 Hs(Rn). ... 2u u = f. b) Show further that there exists C > 0 such that kukHs4.

29 Sep 2020: Choose then a and b such that. 1. a. def=. 1. ... 29. Proof of Lemma 3.1.1. x K , rx > 0 such that B(x,rx).