Towards finite-gap integration of the Inozemtsev model.
Takemura, Kouichi (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Takemura, Kouichi (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Hossein Movasati (2012)
Annales mathématiques Blaise Pascal
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In the present text we give a geometric interpretation of quasi-modular forms using moduli of elliptic curves with marked elements in their de Rham cohomologies. In this way differential equations of modular and quasi-modular forms are interpreted as vector fields on such moduli spaces and they can be calculated from the Gauss-Manin connection of the corresponding universal family of elliptic curves. For the full modular group such a differential equation is calculated and it turns out...
Strachan, Ian A.B. (2009)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Aleksandrov, A.G., Tanabé, S. (1996)
Georgian Mathematical Journal
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Nguyen Minh, Bogdan Ziemian (1996)
Banach Center Publications
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We investigate ramification properties with respect to parameters of integrals (distributions) of a class of singular functions over an unbounded cycle which may intersect the singularities of the integrand. We generalize the classical result of Nilsson dealing with the case where the cycle is bounded and contained in the set of holomorphy of the integrand. Such problems arise naturally in the study of exponential representation at infinity of solutions to certain PDE's (see [Z]). ...
Eilbeck, J.Chris, Enolski, Victor Z., Previato, Emma (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Inozemtsev, Vladimir I., Inozemtseva, Natalia G. (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Chalykh, Oleg (2007)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Enciso, A, Finkel, F., González-López, A., Rodríguez, M.A. (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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P. Marios Petropoulos, Pierre Vanhove (2012)
Annales mathématiques Blaise Pascal
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Modular and quasimodular forms have played an important role in gravity and string theory. Eisenstein series have appeared systematically in the determination of spectrums and partition functions, in the description of non-perturbative effects, in higher-order corrections of scalar-field spaces, ...The latter often appear as gravitational instantons as special solutions of Einstein’s equations. In the present lecture notes we present a class of such solutions in four dimensions, obtained...