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线性分式递推数列a n 1 =pa n s/qan r的通项公式及其周期存在的探究
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作者 梁国喜 《试题与研究(教学论坛)》 2019年第32期120-122,共3页
形式为 a n + 1 =pa n + s/qa n + r , p,q,r,s ∈ R的线性分式递推数列是高中数学数列部分常见题型。本文从初等数学的角度:化归思想,取倒数,转化等差(或等比)数列,给出形式为a n + 1 =pa n + s/qa n + r的线性分式递推数列的通项公式... 形式为 a n + 1 =pa n + s/qa n + r , p,q,r,s ∈ R的线性分式递推数列是高中数学数列部分常见题型。本文从初等数学的角度:化归思想,取倒数,转化等差(或等比)数列,给出形式为a n + 1 =pa n + s/qa n + r的线性分式递推数列的通项公式及周期存在的判定,并举例说明其价值。 展开更多
关键词 化归思想 线性分式递推数列公式 周期
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关于不定方程x^2+(x+1)~2=z^2的正整数解 被引量:1
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作者 邬毅 《西安文理学院学报(自然科学版)》 2006年第2期36-37,共2页
从两个最基本的不定方程x2+y2=z2和x2-dy2=1以及它们的相关定理出发,讨论了不定方程x2+(x+1)2=z2的正整数解的通项公式,并对n取特殊值的情况进行了赋值运算,结果验证了它的所有正整数解的通项公式.
关键词 不定方程 正整数解 通项分式
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On the Evaluation Overlap Integrals with the Same and Different Screening Parameters Over Slater Type Orbitals via the Fourier-Transform Method
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作者 M.Yavuz N.Yükcü E.OEztekin H.Yilmaz S.Doendür 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第1期151-158,共8页
In this paper, derivation of analytical expressions for overlap integrals with the same and different screening parameters of Slater type orbitals (STOs) via the Fourier-transform method is presented. Consequently, it... In this paper, derivation of analytical expressions for overlap integrals with the same and different screening parameters of Slater type orbitals (STOs) via the Fourier-transform method is presented. Consequently, it is relatively easy to express the Fourier integral representations of the overlap integrals with same and different screening parameters mentioned as finite sums of Gegenbauer, Gaunt, binomial coefficients, and STOs. 展开更多
关键词 overlap integrals gegenbauer polynomials slater type orbitals
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SEMI-ALGEBRAICALLY CONNECTED COMPONENTS OF MINIMUM POINTS OF A POLYNOMIAL FUNCTION
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作者 XIAO Shuijing ZENG Guangxing 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第6期1028-1046,共19页
In a recent article, the authors provided an effective algorithm for both computing the global infimum of f and deciding whether or not the infimum of f is attained, where f is a multivariate polynomial over the field... In a recent article, the authors provided an effective algorithm for both computing the global infimum of f and deciding whether or not the infimum of f is attained, where f is a multivariate polynomial over the field R of real numbers. As a complement, the authors investigate the semi- algebraically connected components of minimum points of a polynomial function in this paper. For a given multivariate polynomial f over R, it is shown that the above-mentioned algorithm can find at least one point in each semi-algebraically connected component of minimum points of f whenever f has its global minimum. 展开更多
关键词 Global minimum minimum point polynomial optimization rational univariate represen-tation (RUR) semi-algebraically connected component strictly critical point.
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