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# Questions

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### $A_\infty$ structure on Ext-algebras well defined?

mar 12 12 at 22:47 David White 4,84812027

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### Why do modules with small support have high Exts?

may 23 10 at 23:16 Hailong Dao 15.4k2969

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### What is a symplectic form intuitively?

mar 31 10 at 17:38 Jan Weidner 5,9082139

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### Introduction to W-Algebras/Why W-algebras?

aug 31 11 at 11:49 Hiraku Nakajima 1,133510

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### Why is the definition of l-adic sheaves so complicated?

dec 16 11 at 5:07 S. Carnahan 25.6k4190

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### What are important examples of filtered/graded rings in physics?

jan 4 10 at 18:25 José Figueroa-O'Farrill 19k23193

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### Proj for rings graded by different things then $\mathbb N$ ?

nov 29 10 at 16:20 J.C. Ottem 8,58811645

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### Examples of Eigensheaves outside of langlands

jun 29 at 16:59 David Ben-Zvi 12.6k12850

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### Schubert varieties which admit small resolutions of singularities

sep 5 at 19:51 Alexander Woo 1,6151514

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