I would like to let you know that my article (with John Price) on the
foreign exchange option symmetry in a multiple currency market:
V.A. Kholodnyi and J.F. Price, "Foreign Exchange Option Symmetry and a
Coordinate-Free Description of a Multiple Currency Market in Terms of
Differential Geometry on Graphs", Journal of Nonlinear Analysis, Theory,
Methods and Applications, 47 (9), (2001) 5885-5896,
is now available at:
I hope this article might be of interest to you.