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David E Speyer

Professor of Mathematics at the University of Michigan. My research interests are in combinatorial algebraic geometry, particularly Schubert calculus, matroids and cluster algebras. I also enjoy thinking about number theory and computational mathematics.

Disclaimer: I have 10 years of answers on MO. I do not feel obliged to respond to every comment I get.

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33 What is our policy on asking about correctness of preprints? Oct 2 '13
24 Questions which are research level but where the OP is unlikely to have the background to follow the research Jan 3
20 How should we react to the existence of Math Educators SE? Mar 4 '15
20 What to do with homework questions? Sep 25 '13
17 Interesting (and not sufficiently answered) questions on math.SE Nov 12 '14
17 Is “reciprocal voting” permitted? Sep 25 '13
15 How can we visually differentiate MathOverflow from MathStackExchange within the constraints of the new design themes? Dec 13 '18
15 What is our policy on asking about correctness of preprints? Oct 1 '13
13 Long MathJax in comment breaks linewrapping throughout the comment thread [duplicate] Aug 20 '15
13 Interesting (and not sufficiently answered) questions on math.SE Nov 12 '14
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