noun, na-adjective
homeomorphism; topological equivalence
Mathematics term: a continuous bijection between topological spaces whose inverse is also continuous. Used in topology.
ドーナツとコーヒーカップは位相同型である。
A doughnut and a coffee cup are homeomorphic.
この写像が位相同型であることを示せ。
Show that this mapping is a homeomorphism.