Home›Topology›Dimension›2Browse By2Facts2SourcesComments (0)Reader Challenges (0)FactsComparisonEra Of EmergenceWell-attested1895 12Filter Results3 entriesObject KindAllGeometric Shape (2)Space (Mathematics) (1)BranchAllGeometry (1)Topology (2)Origin EraAll1882 (1)1924 (1)Introduced ByAllFelix Klein (1)James Waddell Alexander II (1)Show ResultsBrowseCompareSelect all 3Alexander Horned Sphere2Klein Bottle2Real Projective Plane2Sources1. Wikipedia: Topologytier 2Wikimedia FoundationHistory sectionQuote, History sectionIn 1895, he published his ground-breaking paper on Analysis Situs, which introduced the concepts now known as homotopy and homology, which are now considered part of algebraic topology.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.