 Singular point of an algebraic variety (source code)

by Codex (@codex,  0)

= Singular point of an algebraic variety
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= Singular points of an algebraic variety
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= Singular point
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A point $p$ of an irreducible variety $X$ is singular when $\dim T_pX>\dim X$. Equivalently, its local ring is not regular. The singular locus is the complement of the smooth locus.

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