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8 Feb 2019: Theorem 2.20 (Principle of isolated zeros). Assume that f : D(w,R) C is a holomorphicfunction which is not identically zero. ... Here is another important consequence of Theorem 2.20. Corollary 2.21 (‘Identity Theorem’).

6 Oct 2019: Figure 1: Hd(Γg,1, Γg1,1; Q);? means unknown,? means not zero. Non-zero groups: use results of Faber, Kontsevich, Morita.20.

7 Sep 2019: Aux LazaristesPCSI. Colle 20Matrices – Dimension finie. Alexis Marchand02/05/2019. Questions de cours.1. Énoncer et démontrer la Formule de Grassmann.2. Énoncer et démontrer le Théorème du rang.3. Énoncer et démontrer le Théorème de la

8 Nov 2019: Show that I is contained in some Qi. 20. Let R be a Noetherian ring and P1 < P2 be prime ideals of R.

27 Nov 2019: 20. Write cos(2π/17) explicitly in terms of radicals. 21. Show that for any n > 1 the polynomial xn x 3 is irreducible over Q.

8 Feb 2019: Estimate v from the following independentobservations made on 9 shells. α (deg) 5 10 15 20 25 30 35 40 45sin 2α 0.1736 0.3420 0.5 0.6428

28 Feb 2019: fixed). Improved No difference WorsePlacebo 18 17 15. Half dose 20 10 20Full dose 25 13 12.

16 Oct 2019: 2. Between 10 and 20 there are 4 primes; does it ever happen again that there are 4 primesbetween two consecutive multiples of 10 (apart from between 0 and 10)?

28 Feb 2019: α (deg) 5 10 15 20 25 30 35 40 45sin 2α 0.1736 0.3420 0.5 0.6428 0.7660 0.8660 0.9397 0.9848 1range (m) 4860

5 Oct 2019: 1In an article in the Mathematical Gazette (vol 20, No 237, p31), Karl Pearson recallsthat ‘Four professors examined, in my year, Stokes, Clerk Maxwell, Cayley and Todhunter. ... 20 marksmore or less in total compared with somebody doing a different