Fixed points for pairs of mappings indcomplete topological spaces

Troy L. Hicks, B. E. Rhoades
1993 International Journal of Mathematics and Mathematical Sciences  
Several important metric space fixed point theorems are proved for a large class of non-metric spaces. In some cases the metric space proofs need only minor changes. This is surprising since the distance function used need not be symmetric and need not satisfy the triangular inequality.
doi:10.1155/s0161171293000304 fatcat:elvouwzpsvg4fdo2s4fwqw6p3a