• In mathematics, the theta divisor Θ is the divisor in the sense of algebraic geometry defined on an abelian variety A over the complex numbers (and principally...
    4 KB (492 words) - 05:00, 21 May 2023
  • Thumbnail for Divisor summatory function
    In number theory, the divisor summatory function is a function that is a sum over the divisor function. It frequently occurs in the study of the asymptotic...
    11 KB (1,936 words) - 09:00, 30 January 2025
  • Thumbnail for Kummer surface
    identification of theta divisors and translates of the curve C {\displaystyle C} . There is a 1-1 correspondence between pairs of odd symmetric theta divisors and 2-torsion...
    9 KB (1,547 words) - 10:27, 24 August 2024
  • In mathematics, a theta characteristic of a non-singular algebraic curve C is a divisor class Θ such that 2Θ is the canonical class. In terms of holomorphic...
    5 KB (702 words) - 12:23, 8 November 2023
  • nonsingular curve of genus ≥ 0 over k, and J its Jacobian, then the theta-divisor of J induces a principal polarisation of J, which in this particular...
    5 KB (805 words) - 04:07, 13 December 2024
  • van der Geer, G.; Schoof, R. (2000). "Effectivity of Arakelov divisors and the theta divisor of a number field". Selecta Mathematica. New Series. 6 (4):...
    37 KB (4,753 words) - 14:39, 23 July 2024
  • Riemann–Roch theorem in all its refinements (via the detailed geometry of the theta-divisor). The classification of algebraic surfaces was a bold and successful...
    12 KB (1,498 words) - 13:47, 6 December 2023
  • under addition on J (see theta-divisor) have dimension n and fill up J, with some identifications caused by special divisors. For g = n we have ΣgC actually...
    4 KB (582 words) - 00:46, 22 October 2024
  • Nef line bundle (redirect from Nef divisor)
    correspondence between line bundles and divisors (built from codimension-1 subvarieties), there is an equivalent notion of a nef divisor. More generally, a line bundle...
    13 KB (2,039 words) - 07:42, 16 February 2025
  • {\displaystyle \sin ^{2}\theta +\cos ^{2}\theta =1.} As usual, sin 2 ⁡ θ {\displaystyle \sin ^{2}\theta } means ( sin ⁡ θ ) 2 {\textstyle (\sin \theta )^{2}} . Any...
    15 KB (2,069 words) - 15:31, 19 March 2025
  • Thumbnail for Gaussian integer
    N(d) of the greatest common divisor of a and b is a common divisor of N(a), N(b), and N(a + b). When the greatest common divisor D of these three integers...
    35 KB (4,835 words) - 07:01, 5 May 2025
  • number theory, σ is included in various divisor functions, especially the sigma function or sum-of-divisors function. In applied mathematics, σ(T) denotes...
    18 KB (2,191 words) - 21:35, 2 July 2025
  • Thumbnail for Square root
    deficiency" method, which says to "...combine the excess and deficiency as the divisor; (taking) the deficiency numerator multiplied by the excess denominator...
    48 KB (6,213 words) - 21:46, 11 June 2025
  • Thumbnail for Srinivasa Ramanujan
    results, such as the Ramanujan prime, the Ramanujan theta function, partition formulae and mock theta functions, have opened entire new areas of work and...
    106 KB (11,713 words) - 09:02, 24 June 2025
  • ) q 2 n {\displaystyle \Theta _{\Gamma _{8}}(\tau )=1+240\sum _{n=1}^{\infty }\sigma _{3}(n)q^{2n}} where σ3(n) is the divisor function. It follows that...
    22 KB (3,576 words) - 20:57, 19 June 2025
  • mathematics at the University of Liverpool, where she wrote "The divisor of curves with a vanishing theta-null", for Compositio Mathematica in 1988. In 1997, she...
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  • Thumbnail for Solid angle
    _{0}^{\theta }\sin \theta '\,d\theta '\,d\phi &=\int _{0}^{2\pi }d\phi \int _{0}^{\theta }\sin \theta '\,d\theta '\\&=2\pi \int _{0}^{\theta }\sin \theta '\...
    28 KB (4,155 words) - 15:53, 23 June 2025
  • every finite semigroup S is a divisor of a finite alternating wreath product of finite simple groups (each of which is a divisor of S) and finite aperiodic...
    6 KB (983 words) - 09:20, 6 May 2025
  • Thumbnail for Pythagorean theorem
    \theta _{1}\cos \theta _{2}+\sin \theta _{1}\sin \theta _{2}\right)\\&=r_{1}^{2}+r_{2}^{2}-2r_{1}r_{2}\cos \left(\theta _{1}-\theta...
    94 KB (12,692 words) - 05:47, 14 May 2025
  • frontotemporal lobar degeneration, and chronic traumatic encephalopathy Divisor function in number theory, also denoted d or σ0 Ramanujan tau function...
    15 KB (1,643 words) - 16:17, 26 June 2025
  • over M g , 1 {\displaystyle {\mathcal {M}}_{g,1}} , by Yin. Powers of theta-divisor on the universal abelian variety, by Grushevsky and Zakharov. These...
    10 KB (1,649 words) - 06:18, 27 January 2025
  • Thumbnail for Samuel James Patterson
    1016/B978-0-12-067570-8.50031-7. Patterson, S. J.; Perry, Peter A. (2001). "The divisor of Selberg's zeta function for Kleinian groups". Duke Mathematical Journal...
    16 KB (1,504 words) - 23:13, 24 May 2025
  • S={\begin{bmatrix}\cos \theta &-\sin \theta &0\\\sin \theta &\cos \theta &0\\0&0&1\end{bmatrix}},} where θ {\displaystyle \theta } is the angle of rotation...
    8 KB (1,081 words) - 07:46, 17 June 2025
  • is Riemann's zeta function and σp(n) is the divisor sum function, the sum of the pth powers of the divisors of n. In particular, one has G 4 ( τ ) = π...
    19 KB (3,533 words) - 22:57, 19 June 2025
  • Thumbnail for Exponentiation
    z=\rho e^{i\theta }=\rho (\cos \theta +i\sin \theta ),} where ρ {\displaystyle \rho } is the absolute value of z, and θ {\displaystyle \theta } is its argument...
    107 KB (13,693 words) - 11:55, 23 June 2025
  • where d1(n) is the number of divisors of n which are congruent to 1 modulo 4 and d3(n) is the number of divisors of n which are congruent to 3 modulo...
    10 KB (1,128 words) - 22:46, 4 March 2025
  • an arithmetic function is the divisor function whose value at a positive integer n is equal to the number of divisors of n. Arithmetic functions are...
    53 KB (7,555 words) - 01:12, 6 April 2025
  • Thumbnail for Martin Huxley
    {\displaystyle p_{n+1}-p_{n}<p_{n}^{\theta },} for all sufficiently large n. Huxley also improved the known bound on the Dirichlet divisor problem. In 2011, Huxley...
    3 KB (196 words) - 23:50, 15 June 2025
  • 2^{k}} divisors. For example, 2 # {\displaystyle 2\#} has 2 divisors, 3 # {\displaystyle 3\#} has 4 divisors, 5 # {\displaystyle 5\#} has 8 divisors and...
    15 KB (1,555 words) - 10:35, 20 June 2025
  • Thumbnail for Number
    = cos ⁡ n θ + i sin ⁡ n θ {\displaystyle (\cos \theta +i\sin \theta )^{n}=\cos n\theta +i\sin n\theta } while Euler's formula of complex analysis (1748)...
    67 KB (8,522 words) - 23:29, 27 June 2025