thumb|This hypercube graph is the [[Graph of a polytope| of the tesseract.]]
thumb|This hypercube graph is the [[Graph of a polytope| of the tesseract.]]
In mathematics, particularly in algebraic topology, the of a topological space presented as a simplicial complex (resp. CW complex) refers to the subspace that is the union of the simplices of (resp. cells of ) of dimensions In other words, given an inductive definition of a complex, the is obtained by stopping at the .
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).