Results 21 to 30 of about 3,689,614 (284)

Average value of the divisor class numbers of real cubic function fields

open access: yesOpen Mathematics, 2023
We compute an asymptotic formula for the divisor class numbers of real cubic function fields Km=k(m3){K}_{m}=k\left(\sqrt[3]{m}), where Fq{{\mathbb{F}}}_{q} is a finite field with qq elements, q≡1(mod3)q\equiv 1\hspace{0.3em}\left(\mathrm{mod}\hspace{0 ...
Lee Yoonjin, Lee Jungyun, Yoo Jinjoo
doaj   +1 more source

Automorphisms of Function Fields [PDF]

open access: yesTransactions of the American Mathematical Society, 1955
1. Let K be an algebraic function field of one variable over the constant field k and let g > 0 be the genus of K. Let 9 be the group of all automorphisms of K that leave the elements of k fixed (and that leave a given place Po of K/k fixed if g = 1). A classical theorem due to Schwartz-Klein-NoetherWeierstrass-Poincar&-Hurwitz when g>1 (and older for ...
openaire   +1 more source

On the Eisenstein ideal over function fields [PDF]

open access: yes, 2015
We study the Eisenstein ideal of Drinfeld modular curves of small levels, and the relation of the Eisenstein ideal to the cuspidal divisor group and the component groups of Jacobians of Drinfeld modular curves.
Dedicated To Winnie Li   +2 more
core   +1 more source

Dynamics of R-neutral Ramond fields in the D1-D5 SCFT

open access: yesJournal of High Energy Physics, 2021
We describe the effect of the marginal deformation of the N $$ \mathcal{N} $$ = (4, 4) super-conformal (T 4) N /S N orbifold theory on a doublet of R-neutral twisted Ramond fields, in the large-N approximation. Our analysis of their dynamics explores the
A. A. Lima, G. M. Sotkov, M. Stanishkov
doaj   +1 more source

Sieving in Function Fields

open access: yesExperimental Mathematics, 1999
We present the first implementation of sieving techniques in the context of function fields. More precisely, we compute in class groups of quadratic congruence function fields by combining the algorithm of Hafner and McCurley with sieving ideas known from factoring.
Flassenberg, Ralf, Paulus, Sachar
openaire   +2 more sources

On solving norm equations in global function fields

open access: yesJournal of Mathematical Cryptology, 2009
The potential of solving norm equations is crucial for a variety of applications of algebraic number theory, especially in cryptography. In this article we develop general effective methods for that task in global function fields for the first time.
Gaál István, Pohst Michael E.
doaj   +1 more source

Entire-Domain Basis Function with Segmented Edge Condition Applied for Scattering Structures

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021
This paper proposes the formulation of a sinusoidal basis function with a novel segmented edge condition to model the impulsive behavior of the surface electric current density at the edges of rectangular microstrip scatterers.
Edson R. Schlosser   +2 more
doaj   +1 more source

Partition function of free conformal fields in 3-plet representation

open access: yesJournal of High Energy Physics, 2017
Simplest examples of AdS/CFT duality correspond to free CFTs in d dimensions with fields in vector or adjoint representation of an internal symmetry group dual in the large N limit to a theory of massless or massless plus massive higher spins in AdS d+1.
Matteo Beccaria, Arkady A. Tseytlin
doaj   +1 more source

Renormalization of twisted Ramond fields in D1-D5 SCFT2

open access: yesJournal of High Energy Physics, 2021
We explore the n-twisted Ramond sector of the deformed two-dimensional N $$ \mathcal{N} $$ = (4, 4) superconformal (T 4) N /S N orbifold theory, describing bound states of D1-D5 brane system in type IIB superstring.
A. A. Lima, G. M. Sotkov, M. Stanishkov
doaj   +1 more source

Hypergeometric Functions for Function Fields

open access: yesFinite Fields and Their Applications, 1995
Let \(\{a,b,c\}\) be complex constants. Then the famous Gauss hypergeometric equation is given by \[ z(1 - z) {d^2y \over dz^2} + \bigl( c - (a + b + 1) z \bigr) {dy \over dz} - aby = 0. \] One defines the Pochhammer symbol \((a)_n\) by \((a)_0 : = 1\) and for \(n > 1\), \((a)_n : = a(a + 1) (a + 2) (a + 3) \cdots (a + n - 1)\).
openaire   +1 more source

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