Newbetuts

Is the inverse of $(x+y, zw+z+w, y^2)\subset Q[x,y,z,w]$ under inclusion $g: Z[x,y,z,w]\to Q[x,y,zw]$ in $Z[x,y,z,w]$ still be $(x+y, zw+z+w, y^2)$?

Are sets given in parametric form always algebraic?

Fundamental theorem of Algebra using fundamental groups.

Constructing prime ideal of tensor product from two prime ideals

Reference for a real algebraic geometry problem

Tangent space in a point and First Ext group

Picard group and cohomology

Tangent space of a point of an algebraic variety

Show that $\mathbb{A}^n$ on the Zariski Topology is not Hausdorff, but it is $T_1$

How to find the number of intersection points between affine curves with multiplicity 2?

Curve in $\mathbb{A}^3$ that cannot be defined by 2 equations

Affine scheme $X$ with $\dim(X)=0$ but infinitely many points

Calculating Radical of an Ideal [closed]

Blowing up a point in projective n-space $\mathbb{P}^n$

Why does Mumford want to avoid "reduction to Jacobians"?

When considering a finite-type scheme as a ringed space, is it enough to look at its $k$-points?

What are a cyclic $k$-algebra and a monoid $k$-algebra?

New posts in algebraic-geometry

Finding the Transformation to a Canonical form for a Quadric Surface

$A$ abelian variety. Is the multiplication by $n_A$ surjective?

Comparing notions of degree of vector bundle

Is the inverse of $(x+y, zw+z+w, y^2)\subset Q[x,y,z,w]$ under inclusion $g: Z[x,y,z,w]\to Q[x,y,zw]$ in $Z[x,y,z,w]$ still be $(x+y, zw+z+w, y^2)$?

Are sets given in parametric form always algebraic?

Fundamental theorem of Algebra using fundamental groups.

Constructing prime ideal of tensor product from two prime ideals

Reference for a real algebraic geometry problem

Tangent space in a point and First Ext group

Picard group and cohomology

Tangent space of a point of an algebraic variety

Show that $\mathbb{A}^n$ on the Zariski Topology is not Hausdorff, but it is $T_1$

How to find the number of intersection points between affine curves with multiplicity 2?

Curve in $\mathbb{A}^3$ that cannot be defined by 2 equations

Affine scheme $X$ with $\dim(X)=0$ but infinitely many points

Calculating Radical of an Ideal [closed]

Blowing up a point in projective n-space $\mathbb{P}^n$

Why does Mumford want to avoid "reduction to Jacobians"?

When considering a finite-type scheme as a ringed space, is it enough to look at its $k$-points?

What are a cyclic $k$-algebra and a monoid $k$-algebra?