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- 181Proofs that every mathematician should know?
- 86Why is the fundamental group of a compact Riemann surface not free ?
- 76"Advice to young mathematicians"
- 70Do you prove all theorems whilst studying?
- 59When is the tensor product of two fields a field?
- 57equivalence of Grothendieck-style versus Cech-style sheaf cohomology
- 56Etale cohomology -- Why study it?
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Top Tags (25)
38 About posting identical answers to a question jan 14 '13
22 Death of Grothendieck [closed] nov 14
21 Could editors please ask before deleting answers.? jan 10 '13
16 Being able to send a personal thank you message dec 14 '12
13 How do you cite a reference in a comment? jan 11 '12
13 Should rings be considered non commutative if the question doesn't imply they are commutative? mar 5 '14
12 when is that a comment is better than an answer? may 23 '13
10 Have I been removed? [duplicate] jun 11 '12
10 Are users here not dear? jul 4 '11