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4 Feb 2021: BBB = {x : (B B)(x B)}. (a) Let B P() and C P(). ... B C) (BB. B) (CC. C). (b) This part seems to have caused problems for some.

15 Oct 2021: x B B B1 B2. b) Conversely, suppose that one is given a set S and a collection β of subsets of Ssatisfying i), ii) above. ... x B′, and B′ B. Then τ τ ′. Exercise A.3.

19 Jan 2021: 11. Let T B(B) compact and λ 6 (σp(T) {0}). Show that T λ is bounded below. ... 15. Given T B(B) define r1(T) := supλσ(T) |λ|. Show that the limit r2(T) :=limn |||Tn|||.

16 Mar 2021: ii) Show that iA iB : H̃(A) H̃(B) H̃(M {}) is an isomorphism. ... by pulling backE F B B along the diagonal; relate Th(E F) to Th(E) and Th(F)].

19 Jan 2021: associated to elementary row/column operations live in the subgroupgenerated by A and B. ... a) The free pro-3 group F̂(3) on two generators a and b;.

13 Oct 2021: A and B are smoothly equivalent then they have the same smooth functions, in. ... b) Using this diffeomorphism to identify RP1 with S1, show that M is isomorphic to the tauto-.

29 Nov 2021: set is a union of somemembers of B; equivalently, for U X, we have that U is open in X if and only iffor all x U there exists B B ... B =. {ni=1. q1γi (Ui) : n N, γi Γ, Ui τγi for i = 1,.

8 Aug 2021: Page 62 first displayed formula after Exercise 4.1.1. Replace ‘D(a b, b) D(a b, a)’ by ‘D(a, a b) D(b, a a)’. ... det B det L1 det L2. det Lp det D det M1 det M2.

26 Mar 2021: AB AB = {ab | a A, b B}.If Res(a,b) Zp for all a A and b B, then this bijection is measure-preserving. ... 2021. [17] B. L. Weiss, Probabilistic Galois theory over p-adic fields, J.

12 Jan 2021: Clearly W satisfies. XW AW WB = B A,(5)W|(SM) = 0.(6). ... We will indistinctly use the word “cocycle”for C or its infinitesimal generator B.