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SUMMARY:Discrete Boussinesq equations - Hietarinta\, J (University of Turk
 u)
DTSTART:20130708T090000Z
DTEND:20130708T093000Z
UID:TALK46132@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:We discuss lattice versions of the Boussinesq equation. Since 
 the continuous form is not\nevolutionary (i.e.\, first order in time deriv
 atives) but second order in time\, the Boussinesq\nequation cannot be disc
 retized as a one-component equation on an elementary quadrilateral of the 
 Cartesian lattice. Instead there are one-component discretizations on a 3 
 x 3 stencil and three-component versions on the quadrilateral. Furthermore
 \, discrete bilinear versions are also known. We compare these different a
 pproaches and the related soliton solutions.\n
LOCATION:Seminar Room 1\, Newton Institute
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