The zero locus or vanishing locus of a function is the set of points where it vanishes, in that it takes the value zero.
For a function, its zero locus is the preimage of zero, hence the level set at 0.
Hilbert’s Nullstellensatz (German: “zero locus theorem”) characterizes joint zero loci of ideals of functions in a polynomial ring.
Last revised on May 24, 2023 at 21:36:53. See the history of this page for a list of all contributions to it.