We prove that the noncommutative(n×n)-matrix KdV equation is exactly a reduction of the geometric KdV flows from R to the symmetric para-Grassmannian manifold G2n,n=SL(2n,R)/SL(n,R)×SL(n,R)and it can also be...We prove that the noncommutative(n×n)-matrix KdV equation is exactly a reduction of the geometric KdV flows from R to the symmetric para-Grassmannian manifold G2n,n=SL(2n,R)/SL(n,R)×SL(n,R)and it can also be realized geometrically as a motion of Sym-Pohlmeyer curves in the symmetric Lie algebra sl(2n,R)with initial data being suitably restricted.This gives a para-geometric characterization of the noncommutative matrix KdV equation.展开更多
基金supported by National Natural Science Foundation of China (Grant No.11271073)Doctoral Fund of Ministry of Education of China (Grant No.20110071110002)
文摘We prove that the noncommutative(n×n)-matrix KdV equation is exactly a reduction of the geometric KdV flows from R to the symmetric para-Grassmannian manifold G2n,n=SL(2n,R)/SL(n,R)×SL(n,R)and it can also be realized geometrically as a motion of Sym-Pohlmeyer curves in the symmetric Lie algebra sl(2n,R)with initial data being suitably restricted.This gives a para-geometric characterization of the noncommutative matrix KdV equation.