1Departamento de Matemática - IME Universidade de São Paulo CEP: 05508-090 São Paulo S.P., Brazil 2Department of Mathematics Wellesley College Wellesley, MA 02458. U.S.A.
Annales Polonici Mathematici, Tome 99 (2010) no. 2, pp. 201-214
We characterize the Christoffel pairs of timelike isothermic surfaces
in the four-dimensional split-quaternions. When restricting the receiving space
to the three-dimensional imaginary split-quaternions,
we establish an equivalent condition for a timelike surface
in $\mathbb R^3_2$ to be real or complex isothermic
in terms of the existence of integrating factors.
Keywords:
characterize christoffel pairs timelike isothermic surfaces four dimensional split quaternions restricting receiving space three dimensional imaginary split quaternions establish equivalent condition timelike surface mathbb real complex isothermic terms existence integrating factors
Affiliations des auteurs :
M. P. Dussan 
1
;
M. Magid 
2
1
Departamento de Matemática - IME Universidade de São Paulo CEP: 05508-090 São Paulo S.P., Brazil
2
Department of Mathematics Wellesley College Wellesley, MA 02458. U.S.A.
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author = {M. P. Dussan and M. Magid},
title = {Timelike {Christoffel} pairs in the split-quaternions},
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M. P. Dussan; M. Magid. Timelike Christoffel pairs in the split-quaternions. Annales Polonici Mathematici, Tome 99 (2010) no. 2, pp. 201-214. doi: 10.4064/ap99-2-7