E8 may refer to:

Mathematics

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  • E8, an exceptional simple Lie group with root lattice of rank 8
  • E8 lattice, special lattice in R8
  • E8 manifold, mathematical object with no smooth structure or topological triangulation
  • E8 polytope, alternate name for the 421 semiregular (uniform) polytope
  • Elementary abelian group of order 8

Physics

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  • E8 Theory, term sometimes loosely used to refer to An Exceptionally Simple Theory of Everything

Transport

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Other uses

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See also

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