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David E Speyer's user avatar
David E Speyer's user avatar
David E Speyer's user avatar
David E Speyer
  • Member for 12 years, 1 month
  • Last seen more than a week ago
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About

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 >= 15 years of answers on MO. I will often not respond to comments on old answers. Sorry, there is a point where I need to limit how much time I put in.

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Top posts

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42
Unique candidate that fails
Sep 7, 2014
36
Uninsulting way to say "this will eventually be easy"
Mar 28, 2015
30
Should an undergraduate math program contain a course on Lebesgue integration?
Mar 24, 2022
24
What can (and should) an educator do about ambiguous terms like "triangle", "square", etc?
Jun 2, 2021
22
How can students foreknow that amount of wood in a napkin ring is the same, regardless of the size of the sphere, without any computation?
Feb 26
20
Should one include the unit in the variable? E.g. should one write $x^\circ = 30^\circ$ or $x = 30^\circ$?
Jan 12, 2023
20
How to advise students who want to do a "Bourbaki"-style study?
Mar 31, 2014
20
Impossibility of trisecting the angle, doubling the cube and alike, what are reasons for or against discussing them in a course on algebra?
Oct 20, 2015
18
Is there a simple explanation for calculus classes of why partial fractions work?
Sep 5, 2014
15
Why are induction proofs so challenging for students?
Nov 24, 2015

Top network posts

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212
Evaluate $\int_0^1 \frac{\log \left( 1+x^{2+\sqrt{3}}\right)}{1+x}\mathrm dx$
201
How to find the Galois group of a polynomial?
180
Most memorable titles
131
Why do primes dislike dividing the sum of all the preceding primes?
122
How did Cole factor $2^{67}-1$ in 1903?