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This paper studies Galois extensions over real quadratic number fields or cyclotomic number fields ramified only at one prime. In both cases, the ray class groups are computed, and they give restrictions on the finite groups that can occur…

Number Theory · Mathematics 2008-11-13 Jing Long Hoelscher

In the present paper we construct quadratic equations and linear syzygies for tangent varieties using 4-way tensors of linear forms and generalize this method to higher secant varieties of higher osculating varieties. Such equations extend…

Algebraic Geometry · Mathematics 2025-10-03 Junho Choe

A general method is presented to build all gauge-invariant terms in gauge field theories, including quantum electrodynamics and quantum chromodynamics. It is applied to two experiments, light-by-light scattering and deep inelastic…

High Energy Physics - Phenomenology · Physics 2020-09-04 Zonghao Li

We produce an infinite family of imaginary quadratic fields whose ideal class groups have $3$-rank at least $2$.

Number Theory · Mathematics 2018-03-13 Kalyan Chakraborty , Azizul Hoque

We introduce a method that generates invariant functions from perturbative classical field theories depending on external parameters. Applying our methods to several field theories such as abelian BF, Chern-Simons and 2-dimensional…

Mathematical Physics · Physics 2008-11-26 Rafael Diaz , Lorenzo Leal

This is the second in a series of two papers presenting a solution to Hilbert's 12th problem for real quadratic function fields in positive characteristic, in the sense of proving an analog of the Theorem of Weber-Fueter. We also offer a…

Number Theory · Mathematics 2024-07-04 L. Demangos , T. M. Gendron

One can define class invariants for a quartic primitive CM field K as special values of certain Siegel (or Hilbert) modular functions at CM points corresponding to K. We provide explicit bounds on the primes appearing in the denominators of…

Number Theory · Mathematics 2007-05-23 Eyal Z. Goren , Kristin E. Lauter

We construct many irreducible polynomials within semigroups generated by sets of the form $S=\{x^2+c_1,\dots,x^2+c_s\}$ under composition.

Number Theory · Mathematics 2022-08-09 Wade Hindes , Reiyah Jacobs , Peter Ye

Let $K$ be an imaginary quadratic field and $\mathcal{O}_K$ be its ring of integers. Let $h_E$ be the Weber function on certain elliptic curve $E$ with complex multiplication by $\mathcal{O}_K$. We show that if $N$ ($>1$) is an integer…

Number Theory · Mathematics 2014-10-14 Ja Kyung Koo , Dong Hwa Shin , Dong Sung Yoon

This paper contributes to the theory of orders of number fields. This paper defines a notion of "ray class group" associated to an arbitrary order in a number field together with an arbitrary ray class modulus for that order (including…

Number Theory · Mathematics 2025-02-12 Gene S. Kopp , Jeffrey C. Lagarias

Let $F$ be a totally real number field of class number one, and let $K$ be a CM-field with $F$ as its maximal real subfield. For each positive integer $N$, we construct a class group of certain binary quadratic forms over $F$ which is…

Number Theory · Mathematics 2020-03-30 Ho Yun Jung , Ja Kyung Koo , Dong Hwa Shin , Dong Sung Yoon

New splitting theorems in a semi-Riemannian manifold which admits an irrotational vector field (not necessarily a gradient) with some suitable properties are obtained. According to the extras hypothesis assumed on the vector field, we can…

Differential Geometry · Mathematics 2007-05-23 Manuel Gutierrez , Benjamin Olea

We construct Eisenstein cocycles for arithmetic subgroups of GL_2 of imaginary quadratic fields valued in second K-groups of products of two CM elliptic curves. We use these to construct maps from the first homology groups of Bianchi spaces…

Number Theory · Mathematics 2025-04-29 Emmanuel Lecouturier , Romyar Sharifi , Sheng-Chi Shih , Jun Wang

In recent years, novel view synthesis has gained popularity in generating high-fidelity images. While demonstrating superior performance in the task of synthesizing novel views, the majority of these methods are still based on the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Xiaoyan Yang , Dingbo Lu , Yang Li , Chenhui Li , Changbo Wang

We develop a theory of sesquilinear forms over finite fields, investigating their representations via polynomials and coefficient matrices, along with classification results for these forms. Through their connection to quadratic forms, we…

Number Theory · Mathematics 2025-07-01 Ruikai Chen

The construction of a gauge field theory for elementary particles usually starts by promoting global invariance of the matter action to a local one, this in turn implying the introduction of gauge fields. We present here a procedure that…

Mathematical Physics · Physics 2011-10-19 C. A. Garcia Canal , F. A. Schaposnik

In this note, we first discuss some properties of generated $\sigma$-fields and a simple approach to the construction of finite $\sigma$-fields. It is shown that the $\sigma$-field generated by a finite class of $\sigma$-distinct sets which…

Probability · Mathematics 2014-08-19 P. Vellaisamy , S. Ghosh , M. Sreehari

Given an action of a reductive group on a normal variety, we construct all invariant open subsets admitting a good quotient with a quasiprojective or a divisorial quotient space. Our approach extends known constructions like Mumford's…

Algebraic Geometry · Mathematics 2007-05-23 Juergen Hausen

Let $K$ be an imaginary quadratic field different from $\mathbb{Q}(\sqrt{-1})$ and $\mathbb{Q}(\sqrt{-3})$. For a positive integer $N$, let $K_\mathfrak{n}$ be the ray class field of $K$ modulo $\mathfrak{n}=N\mathcal{O}_K$. By using the…

Number Theory · Mathematics 2020-04-01 Ick Sun Eum , Ja Kyung Koo , Dong Hwa Shin

We develop several notions of multiplicity for linear factors of multivariable polynomials over different arithmetics (hyperfields). The key example is multiplicities over the hyperfield of signs, which encapsulates the arithmetic of…

Algebraic Geometry · Mathematics 2023-07-19 Andreas Gross , Trevor Gunn