Top network posts

• 35 What is a blow-up?
• 28 Example of an algebra which is not a σ-algebra.
• 27 Spectrum of $\mathbb{Z}[x]$
• 20 Irreducible components of the variety $V(X^2+Y^2-1,X^2-Z^2-1)\subset \mathbb{C}^3.$
• 17 How are $\operatorname{Spec} \mathbb{Q}, \operatorname{Spec}\mathbb{R}, \operatorname{Spec}\mathbb{C}$ etc different?
• 17 A maximal ideal is always a prime ideal?
• 16 Triangle inequality for subtraction?
• View more network posts →