Newbetuts

Base change and irreducibility/reducedness/connectedness in Qing Liu's book (3.2.7 and 3.2.11 using 3.2.6)

How to define a Weil divisor from a Cartier divisor on a variety?

$\operatorname{Spec} k[w,x,y,z] / (wz-xy)$ is normal

transform into weierstrass-form

Why degree of a reducible projective variety is the sum of the degree of its irreducible components

Hartshorne Theorem 8.17

Ext groups of modules over a noetherian ring (Hartshorne exercise III.6.7)

isolated non-normal surface singularity

On certain algebraic functions on the interval $[0, 1]$

Is there any English version of Récoltes et Semailles?

How did people get the inspiration for the sums of cubes formula?

General quadratic diophantine equation.

Hartshorne exercise II.5.12(b)

Rolling out pie dough

Stalks of the tensor product presheaf of two sheaves

Variety of Nilpotent Matrices

A Corollary on Estimation of Fiber Dimension from Kemper's Course on Commutative Algebra

New posts in algebraic-geometry

Pullback commutes with dual for locally free sheaf of finite rank

Why do all parabolas have an axis of symmetry?

Does Proj induce some equivalence of categories involving graded rings?

Base change and irreducibility/reducedness/connectedness in Qing Liu's book (3.2.7 and 3.2.11 using 3.2.6)

How to define a Weil divisor from a Cartier divisor on a variety?

$\operatorname{Spec} k[w,x,y,z] / (wz-xy)$ is normal

transform into weierstrass-form

Why degree of a reducible projective variety is the sum of the degree of its irreducible components

Hartshorne Theorem 8.17

Ext groups of modules over a noetherian ring (Hartshorne exercise III.6.7)

isolated non-normal surface singularity

On certain algebraic functions on the interval $[0, 1]$

Is there any English version of Récoltes et Semailles?

How did people get the inspiration for the sums of cubes formula?

General quadratic diophantine equation.

Hartshorne exercise II.5.12(b)

Rolling out pie dough

Stalks of the tensor product presheaf of two sheaves

Variety of Nilpotent Matrices

A Corollary on Estimation of Fiber Dimension from Kemper's Course on Commutative Algebra