# Time-like isothermic surfaces associated to Grassmannian systems

### M.P. Dussan

Department of Mathematics Department of Mathematics IME - USP Wellesley College São Paulo, Brazil Wellesley, MA### M.A. Magid

Department of Mathematics Department of Mathematics IME - USP Wellesley College São Paulo, Brazil Wellesley, MA

## Abstract

We establish that, as is the case with space-like isothermic surfaces, time-like isothermic surfaces in pseudo-riemannian space $\mathbb R^{n-j,j}$ are associated to the $O(n-j+1,j+1)/O(n-j,j)\times O(1,1)$-system.

## Cite this article

M.P. Dussan, M.A. Magid, Time-like isothermic surfaces associated to Grassmannian systems. Doc. Math. 10 (2005), pp. 527–549

DOI 10.4171/DM/198