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gr-qc1998
Harmonic Map Formulation of Colliding Electrovac Plane Waves
Y. Nutku
The formulation of the Einstein field equations admitting two Killing vectors in terms of harmonic mappings of Riemannian manifolds is a subject in which Charlie Misner has played…
hep-th1998★ 20 cited
Alternative bi-Hamiltonian structures for WDVV equations of associativity
J. Kalayci, Y. Nutku
The WDVV equations of associativity in 2-d topological field theory are completely integrable third order Monge-Ampère equations which admit bi-Hamiltonian structure. The time vari…