The Diophantine Equation x^n+y^m=c(x^k)(y^l), n,m,k,l,c natural numbers

Details The Diophantine Equation x^n+y^m=c(x^k)(y^l), n,m,k,l,c natural numbers The Diophantine Equation x^n+y^m=c(x^k)(y^l), n,m,k,l,c natural numbers

2010-06-08

arxiv.org/abs/1006.1880v1

Mathematics

Number Theory

24 pages no figures

Scientific paper

The subject matter of this work is the diophantine equation x^n+y^m=c(x^k)(y^l), where n,m,k,l,c are natural numbers.We investigate this equation from the point of view of positive integer solutions.A preliminary examination of sources such as reference[1](L.E.Dickson's History of the Theory of Numbers, Vol.II) and [2](W.Sierpinski's Elementary Theory of Numbers) shows that little or no material can be found regarding this diophantine equation.Note that when c=1, (x,y)=(1,1) is a solution regardless of the values of the exponents n,m,k,and l. In Section3, five results from number theory are listed.The first four are well known and are stated without proof.Result5 is of central importance and it is used in the proofs of most of the nine theorems of this paper.We offer a detailed proof of Result5. The entire paper is organized according to eight cases. Here is a sample of two of the nine theorems. In Theorem2, we prove that if n

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