https://www.youtube.com/watch?v=zkmSjRUcdXU&t=1s Stalks and Sheafification Harpreet Bedi2015/01/24 に公開
https://www.youtube.com/watch?v=DHRaQ1IsB5c 06. Algebraic geometry - Sheafification, continued (Diana Carolina Castaneda) Anton Mosunov2016/10/28 に公開 Algebraic geometry seminar Department of Pure Mathematics University of Waterloo October 27th, 2016 Following the notes of Ravi Vakil, available at https://www.youtube.com/redirect?q=http%3A%2F%2Fmath.stanford.edu%2F%7Evakil%2F216blog%2Findex.html&redir_token=daDhTC5mL_GSRKBgcwo1ChbXPgx8MTU0NDM1MzU5NkAxNTQ0MjY3MTk2&event=video_description&v=DHRaQ1IsB5c
https://www.youtube.com/watch?v=j7YmI5Prmnk Presheaves and Sheaves Harpreet Bedi2015/01/21 に公開 コメント Ghazanfar Abbas2 年前 wao nice way to explain the concept of sheaf...,?
https://www.youtube.com/watch?v=487LjWIi_RU Sheaves/Presheaves as Contravariant Functors, Kernel Presheaf is a Sheaf Harpreet Bedi2013/08/27 に公開 There are two slides, in the first slide we talk about Presheaves as contravariant functors, talk about equalizer condition, sheafification and in the second slide we talk about Image and Coker presheag コメント tomuf2 年前 Hi, at the end of the video (around 12:45) - if you manage to lift s_1 and s_2 to G(U), doesn't it give you a unique projection to G(U)/Im(U)? Isn't the problem with coimage not being sheaf more related to the fact that s_1 and s_2 in G(U_1) and G(U_2) don't neccessarily need to agree on the intersection of U_1 and U_2??
