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Robert Lewis
  • Member for 9 years, 5 months
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30 votes
3 answers
7k views

Eigenvalues of $A$ and $A + A^T$

8 votes
2 answers
749 views

Frenet-Serret and Vector Fields

7 votes
3 answers
643 views

Skew-symmetric, Time Dependent, Linear Ordinary Differential Equations

5 votes
3 answers
543 views

Characterization of Plane Curves *via* Curvature $\kappa(s)$ or Equal Curvature Curves are Congruent

3 votes
1 answer
429 views

Similar Matrices and Conjugate Flows

3 votes
1 answer
218 views

$\lim_{t \to \infty} \vert \phi(t) \vert = \lim_{t \to \infty} \vert \ \ddot \phi(t) \vert =0$; does $\vert \dot \phi(t) \vert \to 0$ as well?

3 votes
2 answers
218 views

Is $S = I + T^\dagger T$ surjective?

3 votes
2 answers
163 views

Representing a unit speed curve on a general surface in terms of its Frenet Frame

2 votes
1 answer
67 views

Rescuscitaton of "Values of c for which the given quotient ring is a field." [duplicate]

1 vote
1 answer
69 views

Rings Trapped Between Fields [duplicate]

1 vote
4 answers
109 views

More on Matrices Representing Complex Numbers

-1 votes
1 answer
103 views

Ideals in $R$ and $R[x]$