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Equivalent Binary Quadratic Form and the Extended Modular Group [PDF]

open access: green, 2012
Extended modular group $\bar{\Pi}=$, where $ R:z\rightarrow -\bar{z}, \sim T:z\rightarrow\frac{-1}{z},\simU:z\rightarrow\frac{-1}{z +1} $, has been used to study some properties of the binary quadratic forms whose base points lie in the point set ...
Muhammad Aslam Malik   +1 more
openalex   +4 more sources

The inhomogeneous minima of binary quadratic forms (I) [PDF]

open access: bronzeActa Mathematica, 1952
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Edwin Barnes, H. P. F. Swinnerton-Dyer
openalex   +8 more sources

The representation of binary quadratic forms by positive definite quaternary quadratic forms [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1994
According to Dickson we call a positive definite integral quadratic form \(f\) on \(\mathbb{Z}^ n\) regular, if for every positive integer \(a\) a local representation of \(a\) by \(f\) at all completions of \(\mathbb{Z}^ n\) implies global representation of \(a\) by \(f\).
A. G. Earnest
openalex   +3 more sources

Representation on Average of Binary Quadratic Forms by an Integral Quaternary Quadratic Form

open access: green, 2012
Let $-d$ be a a negative discriminant and let $T$ vary over a set of representatives of the integral equivalence classes of integral binary quadratic forms of discriminant $-d$.
Rainer Schulze‐Pillot
openalex   +4 more sources

Neighbors Of Indefinite Binary Quadratic Forms

open access: green, 2011
{"references": ["J.Buchmann and U.Vollmer. Binary Quadratic Forms: An Algorithmic\nApproach. Springer-Verlag, Berlin, Heidelberg, 2007.", "D.A.Buell. Binary Quadratic Forms, Clasical Theory and Modern Computations.\nSpringer-Verlag, New York, 1989.", "D.E.Flath. Introduction to Number Theory. Wiley, 1989.", "R.A. Mollin.
Ahmet Tekcan
openalex   +3 more sources

Representation of Binary Quadratic Forms by a Quaternary Form [PDF]

open access: bronzeJournal of Mathematical Sciences, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
N. Yu. Kuranova
openalex   +2 more sources

Binary quadratic forms as dessins [PDF]

open access: yesJournal de théorie des nombres de Bordeaux, 2017
We show that the class of every primitive indefinite binary quadratic form is naturally represented by an infinite graph (named çark) with a unique cycle embedded on a conformal annulus. This cycle is called the spine of the çark. Every choice of an edge of a fixed çark specifies an indefinite binary quadratic form in the class represented by the çark.
Uludag, A. Muhammed   +2 more
openaire   +4 more sources

Arithmetic progressions in binary quadratic forms and norm forms [PDF]

open access: yes, 2019
We prove an upper bound for the length of an arithmetic progression represented by an irreducible integral binary quadratic form or a norm form, which depends only on the form and the progression's common difference.
Elsholtz, Christian, Frei, Christopher
core   +2 more sources

Completely p-primitive binary quadratic forms [PDF]

open access: yesJournal of Number Theory, 2018
Let $f(x,y)=ax^2+bxy+cy^2$ be a binary quadratic form with integer coefficients. For a prime $p$ not dividing the discriminant of $f$, we say $f$ is completely $p$-primitive if for any non-zero integer $N$, the diophantine equation $f(x,y)=N$ has always an integer solution $(x,y)=(m,n)$ with $(m,n,p)=1$ whenever it has an integer solution.
Oh, Byeong-Kweon, Yu, Hoseog
openaire   +2 more sources

Represented Value Sets for Integral Binary Quadratic Forms and Lattices [PDF]

open access: yes, 2007
A characterization is given for the integral binary quadratic forms for which the set of represented values is closed under products. It is also proved that for an integral binary quadratic lattice over the ring of integers of a global field, the product
Earnest, A. G., Fitzgerald, Robert W.
core   +2 more sources

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