TOPICS

Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics Foundations of Mathematics Geometry History and Terminology Number Theory Probability and Statistics Recreational Mathematics Topology

Alphabetical Index New in MathWorld

Topology

Topological Invariants

Dehn Invariant
Divisible Property
Hereditary Property
Productive Property

About MathWorld
MathWorld Classroom
Contribute
MathWorld Book
wolfram.com

13,267 Entries
Last Updated: Wed Apr 30 2025
©1999–2025 Wolfram Research, Inc.
Terms of Use

wolfram.com
Wolfram for Education
Created, developed and nurtured by Eric Weisstein at Wolfram Research

Created, developed and nurtured by Eric Weisstein at Wolfram Research