Integrable systems from inelastic curve flows in 2– and 3– dimensional Minkowski space. Issue 2 (2nd April 2016)

• Record Type: Journal Article
• Authors: Alkan, Kivilcim; Anco, Stephen C.
• Is Part Of: Journal of nonlinear mathematical physics. Volume 23:Issue 2(2016)
• Page Start: 256
• Page End: 299
• Publication Date: 2016-04-02
• Subjects: curve flow -- integrable system -- Minkowski plane -- Minkowski space; Nonlinear theories -- Periodicals; Mathematical physics -- Periodicals; 515.252
• DOI: 10.1080/14029251.2016.1175822
• Languages: English
• ISSNs: 1402-9251

Abstract

Abstract: Integrable systems are derived from inelastic flows of timelike, spacelike, and null curves in 2– and 3– dimensional Minkowski space. The derivation uses a Lorentzian version of a geometrical moving frame method which is known to yield the modified Korteveg-de Vries (mKdV) equation and the nonlinear Schrödinger (NLS) equation in 2– and 3– dimensional Euclidean space, respectively. In 2–dimensional Minkowski space, timelike/spacelike inelastic curve flows are shown to yield the defocusing mKdV equation and its bi-Hamiltonian integrability structure, while inelastic null curve flows are shown to give rise to Burgers' equation and its symmetry integrability structure. In 3–dimensional Minkowski space, the complex defocusing mKdV equation and the NLS equation along with their bi-Hamiltonian integrability structures are obtained from timelike inelastic curve flows, whereas spacelike inelastic curve flows yield an interesting variant of these two integrable equations in which complex numbers are replaced by hyperbolic (split-complex) numbers.