= Ring spectrum
{wiki=Ring_spectrum}
A **ring spectrum** is a concept from stable homotopy theory, which is a branch of algebraic topology. It generalizes the idea of a ring in the context of stable homotopy categories, allowing us to study constructions involving stable homotopy groups and cohomology theories in a coherent way. In more technical terms, a ring spectrum is a spectrum \\( R \\) that comes equipped with multiplication and unit maps that satisfy certain properties.
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