3 papers
math-ph1999
Helicity current as a symplectic dilation
Hasan Gumral
A formal symplectic structure on RxM is constructed for the unsteady flow of an incompressible viscous fluid on a three dimensional domain M. The evolution equation for the helicit…
math-ph1998
Kinematical symmetries of 3D incompressible flows
Hasan Gumral
The motion of an incompressible fluid in Lagrangian coordinates involves infinitely many symmetries generated by the left Lie algebra of group of volume preserving diffeomorphisms…
solv-int1998
General vorticity conservation
Hasan Gumral
The motion of an incompressible fluid in Lagrangian coordinates involves infinitely many symmetries generated by the left Lie algebra of group of volume preserving diffeomorphisms…