New posts in algebraic-geometry

Introduction to the trace formula for people outside number theory

reference-request algebraic-geometry representation-theory algebraic-number-theory complex-geometry

Two-variable polynomials over $\mathbb{Q}$ with finitely many roots in $\mathbb{R}^2$

algebraic-geometry polynomials roots real-algebraic-geometry

Unique line in $\mathbb{P}^3$ through a point $p$ and intersecting two disjoint lines

algebraic-geometry projective-space

Question about tangent conics

geometry algebraic-geometry analytic-geometry conic-sections projective-geometry

Are the determinantal ideals prime?

algebraic-geometry commutative-algebra ideals

Push forward of the structure sheaf along covering

algebraic-geometry reference-request

Is a product of two Noetherian schemes over Spec $\mathbb Z$ a Noetherian scheme?

algebraic-geometry commutative-algebra tensor-products

Fibres in algebraic geometry: multiplicity

algebraic-geometry riemann-surfaces schemes complex-geometry

To show a morphism of affine k-varieties which is surjective on closed points is surjective

algebraic-geometry

Gaining insight into the Inverse Image Sheaf

algebraic-geometry category-theory sheaf-theory

Difference between a stalk of a sheaf and a fiber of a vector bundle

algebraic-geometry

Restricting a Weil divisor to a local scheme

algebraic-geometry schemes

What is the relationship between classical algebraic geometry, modern algebraic geometry, and actual curves?

algebraic-geometry sheaf-theory

Why do we need noetherianness (or something like it) for Serre's criterion for affineness?

algebraic-geometry schemes

Cremona transformations are birational maps

algebraic-geometry projective-geometry

Definition of Cartier divisors

algebraic-geometry sheaf-theory

Is the construction of Zariski topology from polynomial rings functorial?

algebraic-geometry polynomials commutative-algebra category-theory zariski-topology

Categorical definition of Spectrum of a ring as a colimit?

algebraic-geometry category-theory

Geometric reason why elliptic curve group law is associative

geometry algebraic-geometry elliptic-curves

Weil and Cartier divisors on a curve

algebraic-geometry algebraic-curves