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2d
answered Why does the commutator subgroup of a unipotent algebraic group have smaller dimension?
Feb
7
answered How to prove that $A⊆B$ means that $A∪B=B$
Feb
4
answered factors in polynomial rings with field coefficients
Jan
29
answered $P$ is a Sylow subgroup of $G$ then $P$ is normal in $G$.
Jan
29
answered Inverse of the element in the multiplicative group
Jan
25
answered Group isomorphisms don't preserve everything?
Jan
19
answered Equivalent definition of almost geometric quotient
Jan
18
answered Proving that $A^{T}A = M$ for all symmetric complex matrices $M$.
Dec
22
answered Closed orbits for reductive group actions
Nov
12
answered Why is the secant variety a variety?
Nov
3
answered Categorical Quotient
Oct
21
answered Does the character with the following properties exist?
Oct
8
answered Constructing realizations of Hilberts weak Nullstellensatz?
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 $A[w]$?