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Aug
4
answered $A+B+C=2149$, Find $A$
Aug
4
answered Why would we a priori expect $V(I)$ to satisfy axioms to define the closed sets for a topology on $\text{Proj}(S)$?
Jul
28
answered Finding a path in a graph by its hash value
Jul
16
answered Reference request for a theorem on maps to normal varieties with equidimensional fibers being open
Jul
9
answered Fiber dimension theorem for locally closed sets
Jun
14
answered When $f(I)S=S$ for each ideal $I$ of $R$?
Jun
11
answered When does the regularity of $A$ implies the regularity of $A[w]$?
Jun
5
answered Isomorphic projective subvarieties, non-isomorphic rings
Jun
5
answered Blow-up of pair of intersecting lines
May
21
answered Zeroes of prime polynomials in the algebraic torus (A Hilbert's Nullstellensatz for Laurent polynomials?)
May
12
asked Inclusionwise maximal linear subvarieties of a projective variety
May
10
asked Is every codimension one subvariety of a projective variety a set-theoretic complete intersection?
May
5
answered what is the precise definition of a morphism defined over $k$?
Apr
23
answered Number of inflection points of an algebraic projective curve
Apr
22
answered Are points in general position generic points?
Apr
21
answered Every variety contains open affine normal subvariety
Apr
21
asked Is the preimage of the non-normal locus a divisor?
Apr
19
answered Example such that $ f_1(x)$ is reducible but $f(x)$ is irreducible.
Apr
15
answered Show that a variety is irreducible
Apr
13
answered Residue class field of coordinate ring