The story
Coined by William Thurston (1946-2012), American mathematician. See horosphere and ball.
Etymology from Wiktionary, CC BY-SA 4.0.
horoball
Today it means: A horosphere together with the space above it. Full definition →
Today it means: A horosphere together with the space above it. Full definition →
Coined by William Thurston (1946-2012), American mathematician. See horosphere and ball.
Etymology from Wiktionary, CC BY-SA 4.0.