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JacobiDN






Mathematica Notation

Traditional Notation









Elliptic Functions > JacobiDN[z,m] > Transformations > Sums over products of six Jacobi functions





http://functions.wolfram.com/09.29.16.0159.01









  


  










Input Form





Sum[JacobiSN[z + 4 k (EllipticK[m]/p), m]^4 (JacobiDN[z + 4 (k + r) (EllipticK[m]/p), m] JacobiCN[z + 4 (k + s) (EllipticK[m]/p), m] + JacobiDN[z + 4 (k - r) (EllipticK[m]/p), m] JacobiCN[z + 4 (k - s) (EllipticK[m]/p), m]), {k, 0, p - 1}] == (2/m) JacobiCS[4 r (EllipticK[m]/p), m] JacobiDS[4 s (EllipticK[m]/p), m] Sum[JacobiCN[z + 4 k (EllipticK[m]/p), m] JacobiDN[z + 4 k (EllipticK[m]/p), m] JacobiSN[z + 4 k (EllipticK[m]/p), m]^2, {k, 0, p - 1}] + (2/m^2) (JacobiDS[4 r (EllipticK[m]/p), m] JacobiNS[4 r (EllipticK[m]/p), m] JacobiCS[4 s (EllipticK[m]/p), m] JacobiNS[4 s (EllipticK[m]/p), m] + JacobiCS[4 r (EllipticK[m]/p), m] JacobiDS[4 s (EllipticK[m]/p), m] (JacobiNS[4 r (EllipticK[m]/p), m]^2 + JacobiNS[4 s (EllipticK[m]/p), m]^2)) Sum[JacobiCN[z + 4 k (EllipticK[m]/p), m] JacobiDN[z + 4 k (EllipticK[m]/p), m], {k, 0, p - 1}] /; Element[p, Integers] && p >= 1 && Element[r, Integers] && Inequality[1, LessEqual, r, Less, p] && Element[s, Integers] && Inequality[1, LessEqual, s, Less, r]










Standard Form





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MathML Form







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</mi> <mo> &#8289; </mo> <mo> ( </mo> <mrow> <mfrac> <mrow> <mn> 4 </mn> <mo> &#8290; </mo> <mi> r </mi> <mo> &#8290; </mo> <mrow> <mi> K </mi> <mo> &#8289; </mo> <mo> ( </mo> <mi> m </mi> <mo> ) </mo> </mrow> </mrow> <mi> p </mi> </mfrac> <mo> &#10072; </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> <mo> + </mo> <msup> <mrow> <mi> ns </mi> <mo> &#8289; </mo> <mo> ( </mo> <mrow> <mfrac> <mrow> <mn> 4 </mn> <mo> &#8290; </mo> <mi> s </mi> <mo> &#8290; </mo> <mrow> <mi> K </mi> <mo> &#8289; </mo> <mo> ( </mo> <mi> m </mi> <mo> ) </mo> </mrow> </mrow> <mi> p </mi> </mfrac> <mo> &#10072; </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> </mrow> <mo> ) </mo> </mrow> </mrow> </mrow> <mo> ) </mo> </mrow> <mo> &#8290; </mo> <mrow> <munderover> <mo> &#8721; </mo> <mrow> <mi> k </mi> <mo> = </mo> <mn> 0 </mn> </mrow> <mrow> <mi> p </mi> <mo> - </mo> <mn> 1 </mn> </mrow> </munderover> <mrow> <mrow> <mi> cn </mi> <mo> &#8289; </mo> <mo> ( </mo> <mrow> <mrow> 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References





A. Khare, A. Lakshminarayan, U. Sukhatme, "Cyclic Identities Involving Jacobi Elliptic Functions. II", math-ph/0207019, (2002) http://arXiv.org/abs/math-ph/0207019

A. Khare, A. Lakshminarayan, U. Sukhatme, "Cyclic Identities Involving Jacobi Elliptic Functions", Journal of Mathematical Physics, v. 44, issue 4, pp. 1822-1841 (2003)










Date Added to functions.wolfram.com (modification date)





2002-12-18