cohomologous field

Игры ⚽ Нужна курсовая?

Closed and exact differential forms — In mathematics, especially vector calculus and differential topology, a closed form is a differential form α whose exterior derivative is zero (dα = 0), and an exact form is a differential form that is the exterior derivative of another … Wikipedia
Projective representation — In the mathematical field of representation theory, a projective representation of a group G on a vector space V over a field F is a group homomorphism from G to :PGL( V ,F) = GL( V ,F)/F lowast; where GL( V ,F) is the automorphism group of… … Wikipedia
Circle bundle — In mathematics, an (oriented) circle bundle is an oriented fiber bundle where the fiber is the circle , or, more precisely, a principal U(1) bundle. It is homotopically equivalent to a complex line bundle. In physics, circle bundles are the… … Wikipedia

Словари и энциклопедии на Академике