New posts in algebraic-geometry

Pullbacks and isomorphisms of vector bundles

differential-geometry algebraic-geometry vector-bundles

Show that $(x^2+y^2+a^2)^2-a^4-4a^2x^2$ is irreducible for $a\neq 0$

abstract-algebra algebraic-geometry commutative-algebra

What is the differences between scheme-theoretical intersection and set-theoretical intersection?

algebraic-geometry representation-theory

Precise definition of an "algebraic function"

real-analysis algebraic-geometry polynomials algebraic-curves

Nonsingular projective variety of degree $d$

abstract-algebra algebraic-geometry algebraic-curves

Is a minimal Gröbner Basis a minimal system of generators?

algebraic-geometry commutative-algebra modules groebner-basis graded-modules

What does it mean if $V(I)\subset\operatorname{Spec} R$ doesn't contain any irreducible component of $\operatorname{Spec} R$?

abstract-algebra algebraic-geometry commutative-algebra

Can the number of solutions $xy(x-y-1)=n$ for $x,y,n \in Z$ be unbounded as n varies?

number-theory algebraic-geometry

Working with Morphisms in Local Coordinates

algebraic-geometry arithmetic-geometry abstract-algebra

Visualizing a Calabi Yau

algebraic-geometry 3d visualization

Calculation with Leray spectral sequence

algebraic-geometry sheaf-theory sheaf-cohomology spectral-sequences

Projective equivalence: Linear subspaces under the action of $PGL_n$

linear-algebra geometry algebraic-geometry

The Wronskian of holomorphic differentials as a q-differential

algebraic-geometry differential-geometry riemann-surfaces

Does the Zariski closure of a maximal subgroup remain maximal?

group-theory algebraic-geometry algebraic-groups

Variety of pairs of product-zero matrices

linear-algebra algebraic-geometry

Is a linear combination of minors irreducible?

abstract-algebra algebraic-geometry commutative-algebra polynomials determinant

The image of a proper scheme is closed

algebraic-geometry schemes

Geometric fibers $\mathbb P^n$ + Vanishing of Brauer group implies projective bundle

algebraic-geometry projective-schemes brauer-group

Showing that the fiber of a morphism of schemes over a point is homeomorphic to the preimage

algebraic-geometry proof-verification schemes maximal-and-prime-ideals localization

The étale fundamental group as a functor

group-theory algebraic-geometry category-theory etale-cohomology