- hyperparallel lines
- мат.расходящиеся прямые
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
Hjelmslev transformation — In mathematics, the Hjelmslev transformation is an effective method for mapping an entire hyperbolic plane into a circle with a finite radius. The transformation was invented by Danish mathematician Johannes Hjelmslev. It utilizes Nikolai… … Wikipedia