Results 91 to 100 of about 354 (175)

Thurston norm for coherent right‐angled Artin groups via L2$L^2$‐invariants

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract We define a new notion of splitting complexity for a group G$G$ along a non‐trivial integral character ϕ∈H1(G;Z)$\phi \in H^1(G; \mathbb {Z})$. If G$G$ is a one‐ended coherent right‐angled Artin group, we show that the splitting complexity along an epimorphism ϕ:G→Z$\phi \colon G \rightarrow \mathbb {Z}$ equals the L2$L^2$‐Euler characteristic
Monika Kudlinska
wiley   +1 more source

Gaussian Integers

open access: yes, 2013
This research was presented during the 2012 International Symposium on Information Theory and its Applications (ISITA2012) in Honolulu, USA.Gaussian integer is one of basic algebraic integers.
Mizushima Daichi   +7 more
core   +1 more source

An Algebraic Approach to Number Theory using Unique Factorization

open access: yes, 2013
Though it may seem non-intuitive, abstract algebra is often useful in the study of number theory. In this thesis, we explore some uses of abstract algebra to prove number theoretic statements.
Sullivan, Mark
core  

The elementary theory of e-free PAC domains

open access: yes, 2000
We prove that the theory of all sentences in the language of rings which are true in Z̃∩Q̃(σ) for almost all σ∈G(Q)e is decidable. Here Q̃ is the field of all algebraic numbers; Z̃ is the ring of all algebraic integers; G(Q) is the absolute Galois group ...
Razon, Aharon, Aharon Razon
core   +1 more source

New approach to Arakelov geometry [PDF]

open access: yes, 2007
This work is dedicated to a new completely algebraic approach to Arakelov geometry, which doesn't require the variety under consideration to be generically smooth or projective.
Durov, N., Durov, Nikolai
core  

Curves over number fields and their rings of integers.

open access: yes, 2013
In this document, the author collected his work that ranges through the years 2006-2013. The common theme that occurs in its five separate parts is that of families of algebraic curves defined over the rational numbers with points over a number field or ...
Zinevičius, Albertas,
core  

Quasi-perfect Geometrically Uniform Codes Derived From Graphs Over Gaussian Integer Rings

open access: yes, 2015
In this paper we present a generalization of the perfect codes derived from the quotient rings of Gaussian integers. We call this class of codes quasi-perfect, which in addition to preserving the property of being geometrically uniform codes they are ...
Quilles C., Palazzo Jr. R.
core   +1 more source

Julia Robinson's Numbers

open access: yes, 2017
There are many examples of rings of algebraic integers with undecidable first order theory. Let K be an algebraic extension of Q. We denote by O(K) the ring of algebraic integers in K.
Gillibert, Pierre
core  

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