In algebraic topology, a Steenrod algebra was defined by Henri Cartan (1955) to be the algebra of stable cohomology operations for mod p {\displaystyle p} cohomology. For a given prime number p {\displaystyle p} , the Steenrod algebra A p {\displaystyle A_{p}} is the graded Hopf algebra over the field F p {\displaystyle \mathbb {F} _{p}} of order p {\displaystyle p} , consisting of all stable cohomology operations for mod p {\displaystyle p} cohomology.
In algebraic topology, a Steenrod algebra was defined by Henri Cartan (1955) to be the algebra of stable cohomology operations for mod p {\displaystyle p} cohomology. For a given prime number p {\displaystyle p} , the Steenrod algebra A p {\displaystyle A_{p}} is the graded Hopf algebra over the field F p {\displaystyle \mathbb {F} _{p}} of order p {\displaystyle p} , consisting of all stable cohomology operations for mod p {\displaystyle p} cohomology.
Source: Wikipedia "Steenrod algebra" · CC BY-SA 4.0
Share this article: X · Bluesky