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Geometric phases, reduction and LiePoisson structure for the resonant threewave interaction
 Physica D
, 1998
"... Hamiltonian LiePoisson structures of the threewave equations associated with the Lie algebras su(3) and su(2, 1) are derived and shown to be compatible. Poisson reduction is performed using the method of invariants and geometric phases associated with the reconstruction are calculated. These resul ..."
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Cited by 17 (6 self)
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Hamiltonian LiePoisson structures of the threewave equations associated with the Lie algebras su(3) and su(2, 1) are derived and shown to be compatible. Poisson reduction is performed using the method of invariants and geometric phases associated with the reconstruction are calculated. These results can be applied to applications of nonlinearwaves in, for instance, nonlinear optics. Some of the general structures presented in the latter part of this paper are implicit in the literature; our purpose is to put the threewave interaction in the modern setting of geometric mechanics and to explore some new things, such as explicit geometric phase formulas, as well as some old things, such as integrability, in this context.
Geometry and control of threewave interactions
 in The Arnoldfest
, 1997
"... The integrable structure of the threewave equations is discussed in the setting of geometric mechanics. LiePoisson structures with quadratic Hamiltonian are associated with the threewave equations through the Lie algebras su(3) and su(2, 1). A second structure having cubic Hamiltonian is shown to ..."
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Cited by 4 (1 self)
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The integrable structure of the threewave equations is discussed in the setting of geometric mechanics. LiePoisson structures with quadratic Hamiltonian are associated with the threewave equations through the Lie algebras su(3) and su(2, 1). A second structure having cubic Hamiltonian is shown to be compatible. The analogy between this system and the rigidbody or Euler equations is discussed. Poisson reduction is performed using the method of invariants and geometric phases associated with the reconstruction are calculated. We show that using piecewise continuous controls, the transfer of energy among three 1 waves can be controlled. The so called quasiphasematching control strategy, which is used in a host of nonlinear optical devices to convert laser light from one frequency to another, is described in this context. Finally, we discuss the connection between piecewise constant controls and billiards.
unknown title
, 708
"... Weyl functions, inverse problem and special solutions for the system auxiliary to the nonlinear optics equation ..."
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Weyl functions, inverse problem and special solutions for the system auxiliary to the nonlinear optics equation
Multicomponent integrable wave equations II.
, 907
"... The Darboux–Dressing Transformations developed in [1] are here applied to construct soliton solutions for a class of boomeronic–type equations. The vacuum (i.e. vanishing) solution and the generic plane wave solution are both dressed to yield one soliton solutions. The formulae are specialised to th ..."
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The Darboux–Dressing Transformations developed in [1] are here applied to construct soliton solutions for a class of boomeronic–type equations. The vacuum (i.e. vanishing) solution and the generic plane wave solution are both dressed to yield one soliton solutions. The formulae are specialised to the particularly interesting case of the resonant interaction of three waves, a wellknown model which is of boomeronic– type. For this equation a novel solution which describes three locked dark pulses (simulton) is introduced. PACS: 02.30Ik; 02.30Jr
Mathematical Sciences HP Laboratories Bristol
, 1998
"... threewave interaction; geometric phases; reduction; LiePoisson structure Hamiltonian LiePoisson structures of the threewave equations associated with the Lie algebras su(3) ana su(2,1) are delivered and shown to be compatible. POIsson reduction is performed using the method of invariants and geom ..."
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threewave interaction; geometric phases; reduction; LiePoisson structure Hamiltonian LiePoisson structures of the threewave equations associated with the Lie algebras su(3) ana su(2,1) are delivered and shown to be compatible. POIsson reduction is performed using the method of invariants and geometric phases associated with the reconstruction are calculated. These results can be applied to applications of nonlinearwaves in, for Instance, nonlinear optics. Some of the general structures presented in the latter part of ~IS paper are implicit in the litet:atur~; our purpose IS to put the threewave Interaction In the modem setting of geometric mechanics and to explore some new things, such as integrability, in thIS context.