в более общих выражениях
• xs = λ(s/p) is characteristic at P if Δp = 0. More generally, a manifold is characteristic at P if its tangent hyperplane at P is characteristic.
Источник:
Русско-английский научно-технический словарь
на Gufo.me
• xs = λ(s/p) is characteristic at P if Δp = 0. More generally, a manifold is characteristic at P if its tangent hyperplane at P is characteristic.