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Phil Harmsworth's user avatar
Phil Harmsworth's user avatar
Phil Harmsworth's user avatar
Phil Harmsworth
  • Member for 7 years, 5 months
  • Last seen this week
25 votes

What do you do when you're stuck?

11 votes

Is amateur research in mathematics viable?

11 votes

Do we lose any solutions when applying separation of variables to partial differential equations?

10 votes

Rediscovery of lost mathematics

10 votes

What are some ways to stay engaged with the mathematical community from outside academia?

9 votes

Books you would like to read (if somebody would just write them…)

9 votes

Proving a system is nonintegrable /not solvable with Inverse Scattering Transform

8 votes

English translation of Wilhelm Killing's 1889 paper

8 votes
Accepted

Reference to formal approach to homotopy analysis method

7 votes
Accepted

Good ways to organize old personal mathematical resources

6 votes

Occurrences of (co)homology in other disciplines and/or nature

6 votes

Autobiographies of mathematicians

6 votes

Application of Lie group analysis of PDE (beyond calculation of exact solutions)

5 votes

Spectral sequences in algebraic topology

5 votes
Accepted

What would be a good introductory reference for learning jet-bundle theory?

5 votes

Simple-looking nonlinear ODE with fractional power

5 votes

How do I make the conceptual transition from multivariable calculus to differential forms?

4 votes

References for existence of solutions to overdetermined system of partial differential inequalities

4 votes

Nonlinear second order ODE $y''+f(x)y=g(x)y^3$

4 votes

Applications of Hamiltonian formalism to classical mechanics

4 votes

Software computing dimension and degree

4 votes

Rediscovery of lost mathematics

4 votes

Homology software

4 votes
Accepted

How did the term "space" in mathematics started to be understood as a set with a structure?

3 votes

Does there exist an electromagnetic analogue of Einstein's field equations?

3 votes

Connection of principal fiber bundles — history

3 votes

Papers of the masters translated to English in one location

3 votes
Accepted

Spaces of solutions to algebraic linear differential equations

3 votes

How to find the symmetry group of the differential equation

3 votes

The Unreasonable Effectiveness of Physics in Mathematics. Why ? What/how to catch?