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Bence Racskó
  • Member for 7 years, 7 months
  • Last seen this week
  • Hungary
32 votes
Accepted

Does spacetime position not form a four-vector?

28 votes
Accepted

What is the meaning of non-coordinate basis?

16 votes
Accepted

Yang-Mills vs Einstein-Hilbert Action

15 votes

What is the difference between configuration space and phase space?

14 votes
Accepted

Does the "Euler-Lagrange operator" $(\gamma,L) \mapsto (\partial_x L)\circ d\gamma- (\partial_v L\circ d\gamma)'$ have some geometric interpretation?

13 votes

Why does the analogy between electromagnetism and general relativity differ if you consider them as gauge theories or fiber bundles?

13 votes
Accepted

Physical understanding of coordinate vs non-holonomic basis

12 votes
Accepted

Can Einstein-Hilbert action be derived from symmetry considerations?

12 votes
Accepted

What's the variation of the Christoffel symbols with respect to the metric?

11 votes

Intuition behind differential operators as the basis vectors of a manifold (space-time)

10 votes
Accepted

Lorentz Transformations Vs Coordinate Transformations

10 votes
Accepted

Is there differential form notation for Maxwell's equation in curved spacetime?

8 votes

Carroll's interpretation of 1-forms

8 votes
Accepted

Using partial derivatives for Maxwell's equations in curved spacetime

8 votes

How do I show that there exists variational/action principle for a given classical system?

7 votes
Accepted

Covariance in special and general relativity

7 votes

Connection between different kinds of "Lagrangian"

7 votes
Accepted

Carroll's Spacetime and Geometry - Notion of open subset of a manifold

7 votes

Information entropy and physics correlation

7 votes
Accepted

Equivalence of two definitions of the stress-energy tensor in general relativity

7 votes

GR and my journey to the centre of the Earth

6 votes
Accepted

Trace of a Tensor

6 votes

Which global symmetry of Minkowski space (if any) gets gauged to the diffeomorphism invariance of general relativity?

6 votes

Definition of the stress-energy tensor

6 votes
Accepted

Is the vanishing of the covariant derivative of the metric necessary?

6 votes

Is local Lorentz + diffeomorphism invariance equivalent to full local Poincaré invariance?

6 votes
Accepted

Virtual displacements

6 votes

Equivalence of two formulation of Maxwell equations on manifolds

6 votes
Accepted

Varying the Einstein-Hilbert action without reference to a chart

6 votes
Accepted

How does one derive the Einstein Field Equations

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