Sheaves(層)とその関連のyoutubeを集めました(主に関数系(代数幾何で省いたものがある)) あまり理解できていませんが、良さそうなものを見繕いました(^^ https://www.youtube.com/watch?v=0GC2zPnfEiQ Space with functions Harpreet Bedi2012/11/16 に公開 Algebraic Analogue of Manifolds, and a precursor to sheaves Ref: Part III notes Burt Totaro
https://www.youtube.com/watch?v=6Vv_OUHfn7c&t=1s Sheaves and Stalk Harpreet Bedi2012/11/28 に公開 Motivation for Sheaves, Definition, Examples, Germ and Stalk コメント Soham Chowdhury2 年前(編集済み) I think "lie in the germ at at 0" is a bit misleading. Shouldn't it be that the constant 0-function (i.e. x-axis) and the two functions with the red tick have the same germ at 0? So your "germ at -1" is actually "germ of functions which take the value -1 in a small neighborhood of 0". Please correct me if this is wrong. erikkk1 年前 i have a question, its probably a bit stupid but iam not shure if i am getting the idea of a germ correctly! The fact that you write F_(0,0) confuses me a little bit. So are the Germs of functions taking value say -1 at x=0 also in the Stalkt F_(0,0) or is this another one.?
https://www.youtube.com/watch?v=LpFOtSv8ziM Sheaves and Stalks 2 Harpreet Bedi2012/12/06 に公開 Relationship between sheaves and stalks コメント Miguel Zamora5 年前 Is it the continuation of Shaves and Stalks? I think something is missed, thank you?