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# Questions

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### What is the purpose of section 3 of BBD?

apr 12 at 2:12 S. Carnahan 25.6k4190

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### How would you say that a small category is embedded into functors from a large $C'$ to abelian groups?

apr 8 at 5:00 Mikhail Bondarko 5,8761421

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### Singularity locus in terms of ideals.

apr 6 at 6:41 Mikhail Bondarko 5,8761421

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### When $R/(f)$ is regular?

mar 25 at 11:43 Mikhail Bondarko 5,8761421

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### Regular subscheme of a projective limit of schemes

mar 11 at 8:42 Mikhail Bondarko 5,8761421

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### Which schemes can be presented as limits of smooth varieties?

mar 6 at 10:06 Mikhail Bondarko 5,8761421

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### How would you call a subscheme of a smooth $S$-scheme?

feb 23 at 8:35 Mikhail Bondarko 5,8761421

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### If $X,Y$ are regular and of finite type over $S$, can $X\times _S Y$ be embedded into a regular $S$-scheme?

feb 21 at 21:29 Mikhail Bondarko 5,8761421

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### Applications for intersection (co)homology and for the Decomposition Theorem for students?

feb 17 at 17:07 Geordie Williamson 1,237410

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