M.N.Raia's user avatar
M.N.Raia's user avatar
M.N.Raia's user avatar
M.N.Raia
  • Member for 7 years, 5 months
  • Last seen this week
8 votes
3 answers
1k views

Question about manifolds and coordinate transformations

8 votes
2 answers
555 views

Silly doubt about tidal effects and Einstein Field Equations

7 votes
4 answers
1k views

Question on connections in general relativity and particle physics

6 votes
2 answers
745 views

About physical meaning of Hausdorff, Second Countable and Paracompact conditions of Manifold Theory

6 votes
2 answers
310 views

Question about the Lie group $SU(3) \times SU(2) \times U(1)$ and the concept of manifold

6 votes
1 answer
456 views

Silly question about kinematics and Christoffel symbols

5 votes
3 answers
295 views

Silly question about Galilei Group

5 votes
1 answer
433 views

A Doubt on Covariant Derivatives and Particle Physics

4 votes
4 answers
230 views

Doubt on the need for Topological Manifolds [closed]

4 votes
1 answer
263 views

Gravitational Collapse: Kerr solution is a vacuum solution but not for any rotating body?

4 votes
0 answers
73 views

Am I seeing a particle orbiting a Morris-Thorne Wormhole? [duplicate]

4 votes
1 answer
112 views

Is there somesort of "recipe" to check if an spacetime exibit the Unruh effect?

4 votes
2 answers
671 views

Single astrophysical object or a cosmological solution?: A doubt on Einstein Field Equation solutions

4 votes
1 answer
198 views

Special relativity and general relativity: are the local charts affine spaces?

4 votes
2 answers
4k views

Spring-Mass-Pendulum "via Newton's Laws"

4 votes
2 answers
237 views

Question about the true nature of the Spinor mathematical object [closed]

4 votes
1 answer
570 views

What is an vacuum in QFT in curved spacetime?

4 votes
3 answers
1k views

What are Connections in physics?

4 votes
2 answers
346 views

Question about the "wave function" on Relativistic Quantum Mechanics (RQM) and Quantum Field Theory (QFT)

3 votes
0 answers
83 views

Question about the travel time of a ship "using" a warp drive metric

3 votes
1 answer
626 views

Silly doubt on penrose diagram for evaporating black hole

3 votes
0 answers
256 views

Question about Ricci Rotation Coeficients

3 votes
0 answers
162 views

Doubt about energy conditions: the Time-like Convergence Condition

3 votes
3 answers
324 views

Doubt about the vacua equations of General Relativity

3 votes
2 answers
1k views

How can a comoving observer be "privileged"?

3 votes
0 answers
30 views

Question on apparent super efficiency of the magnetic penrose process

3 votes
2 answers
246 views

Silly question about a realization given by gravitomagnetism: could there exist a "apparent gravitational magnet"?

3 votes
1 answer
117 views

Silly question about black hole analogues: is it possible do construct an "at home-DIY" experiment?

3 votes
3 answers
1k views

A doubt on calculation of tetrad basis vectos of a non-diagonal metric tensor

3 votes
1 answer
161 views

A Doubt on Hawking Radiation: What Birrell wants to say here?

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