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Kummer’s 24 Solutions of the Hypergeometric Differential Equation with the Aid of Fractional Calculus
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作者 Tohru Morita Ken-ichi Sato 《Advances in Pure Mathematics》 2016年第3期180-191,共12页
We know that the hypergeometric function, which is a solution of the hypergeometric differential equation, is expressed in terms of the Riemann-Liouville fractional derivative (fD). The solution of the differential eq... We know that the hypergeometric function, which is a solution of the hypergeometric differential equation, is expressed in terms of the Riemann-Liouville fractional derivative (fD). The solution of the differential equation obtained by the Euler method takes the form of an integral, which is confirmed to be expressed in terms of the Riemann-Liouville fD of a function. We can rewrite this derivation such that we obtain the solution in the form of the Riemann-Liouville fD of a function. We present a derivation of Kummer’s 24 solutions of the hypergeometric differential equation by this method. 展开更多
关键词 Fractional Derivative hypergeometric Differential equation hypergeometric Function
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Fractional sum and fractional difference on non-uniform lattices and analogue of Euler and Cauchy Beta formulas
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作者 CHENG Jin-fa 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2021年第3期420-442,共23页
As is well known,the definitions of fractional sum and fractional difference of f(z)on non-uniform lattices x(z)=c1z^(2)+c2z+c3 or x(z)=c1q^(z)+c2q^(-z)+c3 are more difficult and complicated.In this article,for the fi... As is well known,the definitions of fractional sum and fractional difference of f(z)on non-uniform lattices x(z)=c1z^(2)+c2z+c3 or x(z)=c1q^(z)+c2q^(-z)+c3 are more difficult and complicated.In this article,for the first time we propose the definitions of the fractional sum and fractional difference on non-uniform lattices by two different ways.The analogue of Euler’s Beta formula,Cauchy’Beta formula on non-uniform lattices are established,and some fundamental theorems of fractional calculas,the solution of the generalized Abel equation on non-uniform lattices are obtained etc. 展开更多
关键词 difference equation of hypergeometric type non-uniform lattice fractional sum fractional difference special functions Euler’s Beta formula Cauchy’Beta formula
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Two-parameter families of uniquely extendable Diophantine triples
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作者 Mihai Cipu Yasutsugu Fujita Maurice Mignotte 《Science China Mathematics》 SCIE CSCD 2018年第3期421-438,共18页
Let A and K be positive integers and ε∈ {-2,-1,1,2}. The main contribution of the paper is a proof that each of the D(ε~2)-triples {K, A^2 K+2εA,(A +1)~2 K + 2ε(A+1)} has uniqui extension to a D(ε~2)-quadruple. ... Let A and K be positive integers and ε∈ {-2,-1,1,2}. The main contribution of the paper is a proof that each of the D(ε~2)-triples {K, A^2 K+2εA,(A +1)~2 K + 2ε(A+1)} has uniqui extension to a D(ε~2)-quadruple. This is used to slightly strengthen the conditions required for the existencc of a D(1)-quintuple whose smallest three elements form a regular triple. 展开更多
关键词 Diophantine m-tuples Pell equations hypergeometric method linear forms in logarithms
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