User Charles Matthews

6 votes

If you went into a coma now and woke in twenty years time what would be your first post on MO?

answered Jul 10, 2010 at 13:22

6 votes

Accepted

Minimal normal subgroups of a finite group

answered Jul 16, 2010 at 10:51

6 votes

Consolidation: Aftermathematics of fads

answered May 24, 2010 at 11:06

6 votes

Isolated quadratic residues in integers mod p

answered May 21, 2010 at 12:48

6 votes

The word "torsion" and its connection to geometry and homology

answered May 25, 2010 at 13:05

6 votes

Spectral sequence

answered May 26, 2010 at 14:56

6 votes

A Learning Roadmap request: From high-school to mid-undergraduate studies

answered Jun 14, 2010 at 21:21

6 votes

What is the etymology of the term "perverse sheaf"?

answered Jun 29, 2010 at 21:21

6 votes

Accepted

Prime Number Theorem w/o Complex Analysis

answered Apr 4, 2011 at 21:12

6 votes

Life after Hartshorne (the book, not the person)...

answered Apr 13, 2011 at 11:07

6 votes

Where does the principal ideal theorem (from CFT) go?

answered Apr 30, 2011 at 7:15

6 votes

Accepted

Preliminaries for Mumford's Abelian Varieties

answered Jun 6, 2011 at 12:06

6 votes

Accepted

Why should I believe in the Siegel's and Hasse's rationale ?

answered Jun 26, 2012 at 11:00

5 votes

Mathematics for ebook readers

answered Jun 9, 2013 at 14:51

5 votes

Generating the symplectic group

answered May 25, 2011 at 11:03

5 votes

What is the advantage of the approach of valuations to the Riemann-Roch Theorem for curves (a la Chevalley)? AKA theory of algebraic functions in one variable

answered Jan 21, 2012 at 13:58

5 votes

Accepted

Can an even degree galois extension complete p-adically to an even galois extension

answered Apr 10, 2011 at 16:38

5 votes

Place of Analytic geometry in modern undergraduate curriculum

answered Mar 28, 2011 at 8:31

5 votes

Accepted

0 dimensional Dedekind domain?

answered Jun 20, 2010 at 13:25

5 votes

In what ways is physical intuition about mathematical objects non-rigorous?

answered Jun 12, 2010 at 16:54

5 votes

Where can we find Deligne's paper " Theorie de Hodge I"?

answered May 24, 2010 at 15:34

5 votes

Connections between ultrafilters in topology and logic

answered May 27, 2010 at 10:26

5 votes

The vanishing of Ramanujan's Function tau(n)

answered Jul 8, 2010 at 18:24

5 votes

Demystifying complex numbers

answered Jul 1, 2010 at 10:17

5 votes

Accepted

Simple definition of the Hausdorff measure using squared paper

answered Aug 12, 2010 at 11:11

5 votes

Which numbers appear as discriminants of cubics?

answered Feb 18, 2011 at 14:33

5 votes

Why certain diophantine equations are interesting (and others are not) ?

answered Oct 17, 2010 at 14:33

4 votes

What is a square root of a line bundle?

answered Nov 3, 2010 at 16:29

4 votes

What is the difference between hard and soft analysis?

answered Nov 20, 2010 at 10:13

4 votes

Topos theory reference suitable for undergraduates

answered Feb 18, 2011 at 20:53

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256 Answers

If you went into a coma now and woke in twenty years time what would be your first post on MO?

Minimal normal subgroups of a finite group

Consolidation: Aftermathematics of fads

Isolated quadratic residues in integers mod p

The word "torsion" and its connection to geometry and homology

Spectral sequence

A Learning Roadmap request: From high-school to mid-undergraduate studies

What is the etymology of the term "perverse sheaf"?

Prime Number Theorem w/o Complex Analysis

Life after Hartshorne (the book, not the person)...

Where does the principal ideal theorem (from CFT) go?

Preliminaries for Mumford's Abelian Varieties

Why should I believe in the Siegel's and Hasse's rationale ?

Mathematics for ebook readers

Generating the symplectic group

What is the advantage of the approach of valuations to the Riemann-Roch Theorem for curves (a la Chevalley)? AKA theory of algebraic functions in one variable

Can an even degree galois extension complete p-adically to an even galois extension

Place of Analytic geometry in modern undergraduate curriculum

0 dimensional Dedekind domain?

In what ways is physical intuition about mathematical objects non-rigorous?

Where can we find Deligne's paper " Theorie de Hodge I"?

Connections between ultrafilters in topology and logic

The vanishing of Ramanujan's Function tau(n)

Demystifying complex numbers

Simple definition of the Hausdorff measure using squared paper

Which numbers appear as discriminants of cubics?

Why certain diophantine equations are interesting (and others are not) ?

What is a square root of a line bundle?

What is the difference between hard and soft analysis?

Topos theory reference suitable for undergraduates