Yrogirg's user avatar
Yrogirg's user avatar
Yrogirg's user avatar
Yrogirg
  • Member for 12 years, 8 months
  • Last seen more than a week ago
28 votes
5 answers
8k views

Software to render formulas to ASCII art

18 votes
3 answers
2k views

How to introduce stress tensor on manifolds?

18 votes
2 answers
2k views

Visualizing Exterior Derivative

18 votes
1 answer
3k views

Is there a codifferential for a covariant exterior derivative?

17 votes
1 answer
2k views

Visualizing Commutator of Two Vector Fields

15 votes
6 answers
2k views

Axiomatic approach to polynomials?

12 votes
2 answers
923 views

Tensor Decomposition

11 votes
2 answers
3k views

What are Free Objects?

10 votes
2 answers
2k views

Notation to work with vector-valued differential forms

9 votes
4 answers
436 views

Examples of familiar, easy-to-visualize manifolds that admit Lie group structures

9 votes
1 answer
638 views

Why there is no d'Alembert solution in 2D?

8 votes
2 answers
689 views

The usage of commutative diagrams

7 votes
1 answer
4k views

Problem book on differential forms wanted

6 votes
1 answer
805 views

Algorithms for symbolic definite integration?

6 votes
2 answers
580 views

Is it possible to evaluate $ \int_0^1 x^n \, dx$ by contour integration?

6 votes
0 answers
2k views

Inner product of $p$-forms [duplicate]

6 votes
1 answer
292 views

How to compute isomorphism $V \simeq V^{**}$ (in Haskell)?

6 votes
2 answers
3k views

Software for differential geometry

6 votes
0 answers
321 views

Integration of bundle-valued differential forms

5 votes
1 answer
570 views

Antiderivative of Polynomials

5 votes
1 answer
1k views

Continuity equation on manifolds

5 votes
1 answer
3k views

Product of Riemannian manifolds?

4 votes
2 answers
371 views

Interpretation of $\sum_{i=1}^n i$

4 votes
2 answers
173 views

Defining a Differentiable Function in a Non-Pointwise Manner

4 votes
2 answers
595 views

Evaluate a Nested Integral

4 votes
1 answer
462 views

Is there a natural Lie bracket for $\mathfrak X (M) \times C^\infty(M)$ (pairs of vector fields and smooth functions)?

4 votes
3 answers
2k views

What is the scalar product of tensors?

4 votes
1 answer
115 views

If $\operatorname{Def} X = \frac{1}{2} \mathcal L_X g$ then what is $\operatorname{Def}^* \operatorname{Def} X$?

4 votes
0 answers
263 views

What is $\int \frac{\delta F}{\delta u} \frac{\delta G}{\delta v} \, dx \; $?

4 votes
2 answers
409 views

How is partial time derivative $\frac{\partial}{\partial t}$ defined for vector flows?