Results 1 to 10 of about 31 (31)

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

On class groups of random number fields

open access: yesProceedings of the London Mathematical Society, Volume 121, Issue 4, Page 927-953, October 2020., 2020
Abstract The main aim of this paper is to disprove the Cohen–Lenstra–Martinet heuristics in two different ways and to offer possible corrections. We also recast the heuristics in terms of Arakelov class groups, giving an explanation for the probability weights appearing in the general form of the heuristics.
Alex Bartel, Hendrik W. Lenstra Jr.
wiley   +1 more source

Capitulation of the 2-ideal classes of type (2, 2, 2) of some quartic cyclic number fields

open access: yesJournal of Mathematical Cryptology, 2019
Let p≡3(mod4){p\equiv 3\pmod{4}} and l≡5(mod8){l\equiv 5\pmod{8}} be different primes such that pl=1{\frac{p}{l}=1} and 2p=pl4{\frac{2}{p}=\frac{p}{l}_{4}}. Put k=ℚ⁢(l){k=\mathbb{Q}(\sqrt{l})}, and denote by ϵ its fundamental unit. Set K=k⁢(-2⁢p⁢ϵ⁢l){K=k(
Azizi Abdelmalek   +3 more
doaj   +1 more source

A relative integral basis over ℚ(−3) for the normal closure of a pure cubic field

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 25, Page 1623-1626, 2003., 2003
Let K be a pure cubic field. Let L be the normal closure of K. A relative integral basis (RIB) for L over ℚ(−3) is given. This RIB simplifies and completes the one given by Haghighi (1986).
Blair K. Spearman, Kenneth S. Williams
wiley   +1 more source

Continued fractions and class number two

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 27, Issue 9, Page 565-571, 2001., 2001
We use the theory of continued fractions in conjunction with ideal theory (often called the infrastructure) in real quadratic fields to give new class number 2 criteria and link this to a canonical norm‐induced quadratic polynomial. By doing so, this provides a real quadratic field analogue of the well‐known result by Hendy (1974) for complex quadratic
Richard A. Mollin
wiley   +1 more source

The average size of 3-torsion in class groups of 2-extensions

open access: yesForum of Mathematics, Pi
We determine the average size of the $3$ -torsion in class groups of G-extensions of a number field when G is any transitive $2$ -group containing a transposition, for example $D_4$ .
Robert Lemke Oliver   +2 more
doaj   +1 more source

Criterion for Class Number of the Family Q254m2+m to be Greater Than or Equal to Three

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this paper, we present an explicit lower bound for the class number of real quadratic field k=QD, where D = 25m2 + 4m is a square‐free integer and m ≡ 4 (mod 5) is an odd positive integer.
Ahmad Issa, Huadong Su
wiley   +1 more source

Explicit class numbers of Artin-Schreier function fields in every tower of their constant field extensions

open access: yesOpen Mathematics
Let K be an Artin-Schreier extension of the rational function field k≔Fq(T) $k{:=}{\mathbb{F}}_{q}\left(T\right)$ , where Fq ${\mathbb{F}}_{q}$ is a finite field of order q and q is a power of p.
Yoo Jinjoo, Lee Yoonjin
doaj   +1 more source

Neoadjuvant Targeted Therapy in Non-Small Cell Lung Cancer and Its Impact on Surgical Outcomes. [PDF]

open access: yesAnn Thorac Surg Short Rep, 2023
Sorin M   +13 more
europepmc   +1 more source

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