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Graded Lie Algebras, Compactified Jacobians and ArithmeticStatistics…
https://www.dpmms.cam.ac.uk/~jcsl5/ADEpaper.pdf30 Mar 2022: Q and b Brs(k), write Jb for the Jacobian of the smooth projective curve Cb, an abelianvariety over k of dimension equal to the genus of Cb. ... J̄ B Compactified Jacobian 5.2H,G,V Extensions of above objects over Z 7.1N Sufficiently large integer 7.2S Z -
The boundary of the Eisenstein symbol by Norbert Schappacher1 ...
https://www.dpmms.cam.ac.uk/~ajs1005/preprints/bdy_of_eisenstein.pdf29 Jan 2010: defined over F. Then there are commutative diagrams :. (1.2.1). Q[Q]0n1 Θ. ... Gm Z/NZ µµµN Z/NZ (Z/NZ)2. (ζaN,b) 7 (a,b). defined over Q(ζN ). 18. 7.3 The main theorem enables us to calculate the effect of -
Michaelmas Term 2023 T.A. Fisher Galois Theory: Example Sheet ...
https://www.dpmms.cam.ac.uk/~taf1000/galois_theory-23-1.pdf10 Oct 2023: Suppose that α has minimal polynomial f over Q, and let β = α4.Find a, b, c Q such that β = a bα cα2. ... The elements α andβ are then said to be algebraically dependent over K.]. -
Modular curves and Ne19 eron models of generalized Jacobians
https://www.dpmms.cam.ac.uk/~ajs1005/preprints/neronfinal.pdf10 Feb 2023: and Φ(J) = ker(b)/ im(a).If X is semistable (meaning that Xs is smooth over k apart from double points with. ... v) (v′) Z[C]0,. the sum taken over all vertices v′ adjacent to v.In general, we have an isomorphism of Gal(k̄/k)-modules Φ(J) = ker(b)/ -
ON THE CONNECTED COMPONENTS OF AFFINE DELIGNE-LUSZTIG VARIETIES XUHUA …
https://www.dpmms.cam.ac.uk/~rz240/ADLV7.pdf22 Oct 2020: let T̆ be its centralizer. By Steinberg’s theorem, G is quasi split over F̆. ... Let Z be a finite type affinescheme over OF and Z its generic fiber. -
Example sheet 4, Galois Theory (Michaelmas 2022)…
https://www.dpmms.cam.ac.uk/study/II/Galois/2022-2023/ex4.pdf29 Nov 2022: 10. (i) Find the Galois group of f = T4 4T 2 over Q,(ii) Find the Galois group of f over Q(i). ... X2(X 1)2. 13. Let K be any field and L = K(X) the field of rational functions over K. -
prelim13.dvi
https://www.dpmms.cam.ac.uk/~jmeh1/Teaching/prelim13.pdf10 Oct 2013: In whichof these cases is U a vector space over R?(a) x1 > 0.(b) either x1 = 0 or x2 = 0.(c) x1 x2 = 0.(d) x1 x2 = 1.(e) x1 ... 2. Determine which of the following sets of sequences of real numbers (xn) form vector spaces over R.(a) xn is bounded.(b) xn -
Michaelmas Term 2011 J. M. E. Hyland Linear Algebra: ...
https://www.dpmms.cam.ac.uk/~jmeh1/Teaching/prelim11.pdf6 Oct 2011: In whichof these cases is U a vector space over R?(a) x1 > 0.(b) either x1 = 0 or x2 = 0.(c) x1 x2 = 0.(d) x1 x2 = 1.(e) x1 ... 2. Determine which of the following sets of sequences of real numbers (xn) form vector spaces over R.(a) xn is bounded.(b) xn -
Michaelmas Term 2015 SJW Linear Algebra: Example Sheet 3 ...
https://www.dpmms.cam.ac.uk/~sjw47/LinAlg15-3.pdf9 Nov 2015: 14. Let C be an nn matrix over C, and write C = A iB, where A and B are real nn matrices. ... Deduce that if two n n real matrices P and Q are similar whenregarded as matrices over C, then they are similar as matrices over R. -
FOUR-MANIFOLDS LENT 2009 EXAMPLE SHEET 2 1. Let Y ...
https://www.dpmms.cam.ac.uk/~jar60/Examples2.pdf14 Feb 2009: Show that thedual (over Q) of C is C+. (b) Show that H(C) is a direct sum of copies of Q[U ] and Q[U ]/(U ni ). (Use thestructure theorem ... d) Explain how this is formally similar to the homology of the Hopf bundle over CPn.
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