group of spectral homologies

См. также в других словарях:

• Spectral sequence — In the area of mathematics known as homological algebra, especially in algebraic topology and group cohomology, a spectral sequence is a means of computing homology groups by taking successive approximations. Spectral sequences are a… …   Wikipedia

• Massey product — The Massey product is an algebraic generalization of the phenomenon of Borromean rings. In algebraic topology, the Massey product is a cohomology operation of higher order introduced in (Massey 1958), which generalizes the cup product …   Wikipedia

• Mirror neuron — A mirror neuron is a neuron that fires both when an animal acts and when the animal observes the same action performed by another.[1][2] [3] Thus, the neuron mirrors the behaviour of the other, as though the observer were itself acting. Such… …   Wikipedia