High Quality Content by WIKIPEDIA articles! In mathematics, an algebraic space is a generalization of the schemes of algebraic geometry introduced by Michael Artin for use in deformation theory. Intuitively, an algebraic space is a scheme modulo a "nice" equivalence relation; the resulting category of algebraic spaces extends the category of schemes and allows to carry out several natural constructions that are needed for example in deformation theory or in the construction of moduli spaces but are not possible in the smaller category of schemes.

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