Читать книгу Algebra and Applications 2 - Группа авторов - Страница 30

An operad is a combinatorial device which appeared in algebraic topology (May 1972), coined for coding “types of algebras”. Hence, for example, a Lie algebra is an algebra over some operad denoted by LIE, an associative algebra is an algebra over some operad denoted by ASSOC, a commutative algebra is an algebra over some operad denoted by COM and so on.