Results 71 to 80 of about 694 (184)
Journal of Applied Mathematics, 2012 Accurate approximate closed-form solutions for the cubic-quintic Duffing oscillator are obtained in terms of elementary functions. To do this, we use the previous results obtained using a cubication method in which the restoring force is expanded in ...
A. Beléndez +6 more
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Null paths on a toroidal topological black hole in conformal Weyl gravity
European Physical Journal C: Particles and Fields, 2018 The motion of massless particles on the background of a toroidal topological black hole is analyzed in the context of conformal Weyl gravity. Null geodesics, in terms of the Jacobi elliptic functions, are found analytically.
J. R. Villanueva +3 more
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Doubly Periodic Functions and Floquet Theorem
Sultan Qaboos University Journal for ScienceIn complex analysis, an elliptic function is a meromorphic function that is periodic in two directions. Just as a periodic function of a real variable is defined by its values on an interval, an elliptic function is determined by its values on a ...
Nafya H. Mohammed Journal +1 more
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Analytical and dynamical insights into the truncated M-fractional Akbota equation
Boundary Value ProblemsThis paper investigates the truncated M-fractional Akbota equation via the application of Jacobi elliptic function expansion approach. Akbota is an integrable Heisenberg ferromagnetic couple system of equations that is very useful to visualize and study ...
Muhammad Ishfaq Khan +5 more
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Visualization of the solution of Jacobi elliptic expanding function
Acta Physica Sinica, 2005 Thanks to the powerful software MATLAB, this paper gets the beautiful figures of a kind of Jacobi elliptic function-sn(x,k);and as an example, we also d raw the figures of solution of Jacobi expanding function of KdV equation in two different parameters.
null Zheng Qiang +2 more
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On a functional equation for Jacobi's elliptic function cn(z; k)
Aequationes Mathematicae, 1984 The author considers the functional equation \((1)\quad (f(x+y)+f(x- y))(f(x)^ 2+f(y)^ 2)=2f(x)f(y)(f(x+y)f(x-y)+1),\) where f:\({\mathbb{C}}\to {\mathbb{C}}\) and x,y are complex variables. He shows first that (1) is a generalization of the cosine functional equation \(f(x+y)+f(x- y)=2f(x)f(y).\) The main result proved in this paper is the following ...
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On elliptic genera of 6d string theories
Journal of High Energy Physics, 2018 We study the elliptic genera of 6d strings based on their modular properties. They are weak Jacobi forms of weight 0, whose indices are determined from the 2d chiral anomalies.
Joonho Kim, Kimyeong Lee, Jaemo Park
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Symmetries, travelling-wave and self-similar solutions of two-component BKP hierarchy
Alexandria Engineering JournalWe investigate the two-component BKP hierarchy equation for its Lie point symmetries. To obtain a complete classification of the group-invariant solution, we derive the one-dimensional optimal system of subalgebras of A3,3(D⨂sT2).
J. Mohammed Zubair Ahamed, R. Sinuvasan
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Jacobi elliptic functions and change of variable in a convolution
Aequationes mathematicae, 1990 The author considers the functional equation \(G(y+x)/G(y- x)=(f(y)+f(x))/(f(y)-f(x))\) connected with the Brownian motion. He gives the complete set of solutions of this equation in the class of meromorphic functions.
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88th Annual Meeting of the Meteoritical Society 2026: Abstracts
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley +1 more source