Talk:Morphism of finite type

From WikiProjectMed
Jump to navigation Jump to search

distinction between finite type and locally of finite type

It seems that the page defines what is called locally of finite type. According to [1]https://stacks.math.columbia.edu/tag/01T1 a morphism of finite type should additionally be quasi-compact. This may or may not be included depending on the sizes of the index sets in which reside, however, such index sets are not specified.

Potentially there needs to be a split into two articles, one for locally of finite type and one for finite type. Note that the quasi-compact is mostly satisfied for morphisms between "reasonable" schemes which are of greatest interest. Since this articles makes a lot of concrete examples with affine schemes where only the condition for "locally of finite type" are checked, they could easily go to a "finite type" page with the additional remark that quasi-compactness is trivially satisfied. Tpreu (talk) 10:40, 15 August 2023 (UTC)[reply]