= G-spectrum
{wiki=G-spectrum}
G-spectrum refers to a concept in the field of algebraic topology, specifically in the study of stable homotopy theory. It is the construction of a certain type of spectrum that captures the homotopical information of a given space or a kind of generalized space. A spectrum is a sequence of spaces (or more generally, objects in a stable category) along with stable homotopy equivalences that allow for a systematic study of stable phenomena in topology.
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