WebOct 20, 2009 · If you have a morphism X-->Y of schemes, finite type means that the fibers are finite dimensional and finite, that the fibers are zero-dimensional. Take for a finite … http://www-personal.umich.edu/~mmustata/Chapter5_631.pdf
Section 29.25 (01U2): Flat morphisms—The Stacks project
WebApr 9, 2024 · Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.. Visit Stack Exchange Web$\begingroup$ Georges, i understand that the degree is not defined for a finite morphism of varieties over $\mathbb{C}$ that is not dominant? (excuse the naive general use of … how to start a new game in fallout 76
ag.algebraic geometry - Surjective étale morphisms étale locally …
In algebraic geometry, a finite morphism between two affine varieties $${\displaystyle X,Y}$$ is a dense regular map which induces isomorphic inclusion $${\displaystyle k\left[Y\right]\hookrightarrow k\left[X\right]}$$ between their coordinate rings, such that $${\displaystyle k\left[X\right]}$$ is … See more A morphism f: X → Y of schemes is a finite morphism if Y has an open cover by affine schemes such that for each i, $${\displaystyle f^{-1}(V_{i})=U_{i}}$$ is an open affine … See more 1. ^ Shafarevich 2013, p. 60, Def. 1.1. 2. ^ Shafarevich 2013, p. 62, Def. 1.2. 3. ^ Hartshorne 1977, Section II.3. See more • The composition of two finite morphisms is finite. • Any base change of a finite morphism f: X → Y is finite. That is, if g: Z → Y is any … See more • Glossary of algebraic geometry • Finite algebra See more • The Stacks Project Authors, The Stacks Project See more WebThe Frobenius morphism is not necessarily surjective, even when R is a field. For example, let K = F p (t) be the finite field of p elements together with a single transcendental element; equivalently, K is the field of rational functions with coefficients in F p. Then the image of F does not contain t. WebEnter the email address you signed up with and we'll email you a reset link. how to start a new family tree in ancestry