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26 Oct 2005: Do there exist integers x and y with3528x 966y = 24?

12 Nov 2005: Find a monic polynomial over Z of degree 4 whoseGalois group is V = {e, (12)(34), (13)(24), (14)(23)}.(ii) Let f Z[X] be monic and separable of degree

24 May 2005: Part IID RIEMANN SURFACES (2004–2005): Revision Example Sheet. (a.g.kovalev@dpmms.cam.ac.uk). Note. The present 24-lecture course on Riemann Surfaces was developed from the 16-lecture

24 Nov 2005: T.A.Fisher@dpmms.cam.ac.uk - 1 - 24 November 2005. 54) Alice and Bob are issued with RSA public keys (N, e1) and (N, e2), and correspondingprivate keys (N, d1) ... Show that the sequence in (ii) has period 2d 1. T.A.Fisher@dpmms.cam.ac.uk - 2 - 24

21 May 2005: A.G.Thomason@dpmms.cam.ac.uk - 1 - 24 January 2005. 13) Prove that a graph G is k-connected iff |G| k 1 and for any U V (G) ... A.G.Thomason@dpmms.cam.ac.uk - 2 - 24 January 2005.

21 May 2005: 24}. It follows that in dx, the coefficient of cv,w isalso zero, and so dx = 0. ... 10,. , 24 circle, we see that c10,. , c24 allrepresent the same element as c0 in H0.

10 Nov 2005: 24) Show that an Eulerian plane map is 2-colourable. 25) Let S be the projective plane.

21 May 2005: 3. (i) Show that X4 2X 2 and X4 18X2 24 are irreducible in Q[X].(ii) Are X3 9 and X4 8 irreducible in Q[X]?(iii) Show that X4

27 Oct 2005: 24) (i) Show that H(X|Y ) 0 with equality if and only if X is a function of Y.

21 May 2005: 4n 3} then G contains a cycle of length 4. 24) Let G be a graph of order n and let G1,.