newsletterlibrary.com

Top : Science : Math : Number Theory :
Diophantine Equations

Categories
Equal Sums of Like Powers 
Fermat's Last Theorem 

Websites
Searchable, ~400 items.
site exerpt
Bibliography on Hilbert's Tenth Problem  Number of online publications:5Supported:yes Most recent reference:February 1993 Query: in any author title field; Publication year: in since before four digit years) Options: Results as Citation Results in BibTeX 10 results per page 40 results per page 100 results per...
http://liinwww.ira.uka.de/bibliography/Math/Hilbert10.html

Dave Rusin's guide to Diophantine equations.
site exerpt
11D: Diophantine equations  Applications and related fields See also 11GXX, 14GXX. In particular, discussion of many examples and families of equations has been moved to pages for (arithmetic) algebraic geometry; the dividing line is unclear sorry. Diophantine equations whose solution set is one-dimensional...
http://www.math.niu.edu/~rusin/p...pers/known-math/index/11DXX.html

The conjecture states that for any integer n > 1 there are integers a, b, and c with 4/n = 1/a + 1/b + 1/c, a > 0, b > 0, c > 0. The page establishes that the conjecture is true for all integers n, 1 < n <= 10^14. Tables and software by Allan Swett.
site exerpt
Swett, Research, Erdos-Strauss Conj  Some of the linked pages are under revision Principal Ideas, Part 1: A C Program One may establish ESC(n) for a particular class of integers n using an identity. For example, the identity 4/(2+3x 1/(2+3x 1/(1+x 1 1+x)(2+3x establishes that...
http://math.uindy.edu/swett/esc.htm

Definition of the problem and a list of special cases that have been solved, by Clemens Heuberger.
site exerpt
Clemens Heuberger Thue equations  Pythagoras for instance described all integers being the sides of a rectangular triangle. After Diophantus von Alexandrien such equations are called diophantine equations. Since that time, many mathematicians worked on this topic, such as Fermat, Euler, Kummer, Siegel, and Wiles....
http://finanz.math.tu-graz.ac.at/~cheub/thue.html

Statement of the problem in several languages, history of the problem, bibliography and links to related WWW sites.
site exerpt
Hilbert Tenth Problem: database index  The aim of this page is to promote research connected with the negative solution of Hilbert's Tenth Problem. The negative solution of this problem and the developed techniques have a lot of applications in theory of algorithms, algebra, number theory,...
http://logic.pdmi.ras.ru/Hilbert10/

A survey by José Felipe Voloch.
site exerpt
Diophantine geometry in characteristic p: a survey  Diophantine geometry in characteristic p: a survey José Felipe Voloch it goes without saying that the function-fields over finite fields must be granted a fully simultaneous treatment with number-fields, instead of the segregated status, and at best the separate but...
http://www.ma.utexas.edu/users/v...och/surveylatex/surveylatex.html

A Javascript calculator for pythagorean triplets.
site exerpt
pythagorean triplets pythagorean triples  T consists of three natural numbers x, y and z with x2 y2 z2. PT's with greatest common divisor 1 TPT's are of particular interest. Theorem 1 Every PT can be obtained in a unique way as a product of...
http://www.faust.fr.bw.schule.de/mhb/pythagen.htm

Given a Diophantine equation with any number of unknowns and with rational integer coefficients: devise a process, which could determine by a finite number of operations whether the equation is solvable in rational integers.
site exerpt
Hilbert's Tenth Problem. Diophantine Equations. By K.Podnieks  Adjust your browser window Right 4. Hilbert's Tenth Problem Statement of the problem: 10. Determining the solvability of a Diophantine equation. Given a Diophantine equation with any number of unknowns and with rational integer coefficients: devise a process, which could...
http://www.ltn.lv/~podnieks/gt4.html

Dario Alpern's Java/JavaScript code that solves Diophantine equations of the form Ax^2 + Bxy + Cy^2 + Dx + Ey + F = 0 in two selectable modes: "solution only" and "step by step" (or "teach") mode. There is also a link to his description of the solving methods.
site exerpt
Dario Alpern's Generic Two integer variable equation solver  If you are using that software, you should enable JavaScript, and then reload this page....
http://www.alpertron.com.ar/QUAD.HTM

A JavaScript applet which reads a and gives integer solutions of a^2+b^2 = c^2.
site exerpt
Pythagorean Triples b=(a²/m m)/2 c=b+m Pythagorean Triplets  Web Counter...
http://home.foni.net/~heinzbecker/pythagoras.html

Sets with the property that the product of any two distinct elements is one less than a square. Notes and bibliography by Andrej Dujella.
site exerpt
Diophantine m-tuples  The problem of the construction of Diophantine m-tuples, i.e. sets with the property that product of any two of its distinct elements is one less then a square, has a very long history. There are some new results in this...
http://www.math.hr/~duje/dtuples.html

Triangles in the Euclidean plane such that all three sides are rational. With tables of Heronian and Pythagorean triples.
site exerpt
Rational Triangles  Triangle as a triangle in the Euclidean plane such that all three sides measured relative to each other are rational. Once, it was thought that all triangles were rational. The discovery of counterexamples is attributed to the Pythagoreans. Any triangle...
http://grail.cba.csuohio.edu/~somos/rattri.html

John Robertson's treatise on how to solve Diophantine equations of the form x^2 - dy^2 = N.
site exerpt
Solving General Pell Equations  An improved version of what used to be here is now a PDF file at my homepage. Look for the PDF file titled Solving the generalized Pell equation The old HTML page (uncorrected, un-enhanced, on some browsers some math symbols...
http://hometown.aol.com/jpr2718/pelleqns.html

Record solutions.
site exerpt
Pell's equation  Large fundamental solutions of Pell's equation Introduction Results References Links Contact [Up] Introduction LetA be a positive integer which is not a perfect square. It is well known that there exist an infinite number of integer solutions of the equation...
http://www.ieeta.pt/~tos/pell.html

Notes by Jamie Bailey and Brian Oberg. Illustrates the method on FLT with exponent 4.
site exerpt
Fermat's Method of Infinite Descent  Fermat received his degree in Civil Law at the University of Orleans before 1631 and served as a lawyer and then a councillor at Toulouse. The political and legal path Fermat chose is attributed to the trends of upward social...
http://sweb.uky.edu/~jrbail01/fermat.htm

On-line Pell Equation solver by Michael Zuker.
site exerpt
Diophantus Quadraticus: X^2 dY^2 1  Enter a positive integer value for d. d must not be a perfect square. Verbose mode: Off: On: Professor Michael Zuker Department of Mathematical Sciences Rensselaer Polytechnic Institute zukerm@rpi.edu...
http://www.bioinfo.rpi.edu/~zukerm/cgi-bin/dq.html

Some of conjectures and open problems, compiled at AIM.
site exerpt
 Rational and integral points on higher dimensional varieties This web page highlights some of the conjectures and open problems concerning Rational and integral points on higher dimensional varieties. If you would like to print a hard copy of the whole...
http://aimath.org/WWN/qptsurface2/

MAGMA code to solve Diophantine equations of the form F(x)=G(y), for which Runge's condition is satisfied. Created by Szabolcs Tengely.
http://www.math.leidenuniv.nl/~tengely/main2.html

Articles, computations and software in Magma and GP by Martin Bright.
site exerpt
Diagonal quartic surfaces  Diagonal quartic surfaces This is Martin Bright's page about diagonal quartic surfaces. This page contains various bits and pieces which you can download. It is not really prepared for general use, and certainly not documented; but there is a small...
http://www.boojum.org.uk/maths/quartic-surfaces/

A web tool for solving Diophantine equations of the form ax + by = c.
http://www.thoralf.uwaterloo.ca/htdocs/linear.html

A web text by Fred Barnes on 60-, 90-, and 120-degree integer-sided triangles.
http://www.geocities.com/fredlb37/