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Metric-tensor
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Killing Vectors in Schwarzschild Metric
August 1st, 2022
metric-tensor
vector-fields
symmetry
general-relativity
Does time speed up or slow down near a black hole?
August 1st, 2022
black-holes
time
metric-tensor
differential-geometry
general-relativity
Dimensional analysis of metric tensor
December 24th, 2020
general-relativity
dimensional-analysis
metric-tensor
The signature of the metric and the definition of the electromagnetic tensor
June 6th, 2021
electromagnetism
special-relativity
metric-tensor
tensor-calculus
conventions
Conformal transformation vs diffeomorphisms
July 6th, 2021
coordinate-systems
conformal-field-theory
diffeomorphism-invariance
differential-geometry
metric-tensor
Deriving the Lorentz Transformation
January 11th, 2020
special-relativity
metric-tensor
inertial-frames
lorentz-symmetry
Are any of Euclid's 5 postulates false in Minkowski spacetime?
October 28th, 2020
distance
special-relativity
metric-tensor
Why is time-order invariant in timelike interval?
April 3rd, 2020
metric-tensor
observers
inertial-frames
spacetime
special-relativity
Intuition behind reversal of Schwarz inequality for Minkowski space?
August 22nd, 2020
metric-tensor
special-relativity
Why is the scalar product of four-velocity with itself -1?
March 1st, 2020
metric-tensor
special-relativity
velocity
Metric tensor in special and general relativity
August 1st, 2022
differential-geometry
general-relativity
metric-tensor
coordinate-systems
special-relativity
Unorthodox way of solving Einstein field equations
June 1st, 2020
metric-tensor
general-relativity
stress-energy-momentum-tensor
Einstein field equations to the Alcubierre metric
May 16th, 2020
general-relativity
metric-tensor
tensor-calculus
warp-drives
How to prove that a flat spacetime admits Minkowski coordinates?
March 5th, 2020
general-relativity
metric-tensor
coordinate-systems
curvature
differential-geometry
Metric tensor of coordinate transformation
February 25th, 2022
metric-tensor
coordinate-systems
special-relativity
General Relativity: is Tangent Space Always Flat?
August 1st, 2022
curvature
metric-tensor
spacetime
general-relativity
Space-like and time-like: where do the names come from?
August 1st, 2022
terminology
relativity
metric-tensor
causality
How to show the spacetime interval is invariant in general?
December 25th, 2020
general-relativity
metric-tensor
tensor-calculus
coordinate-systems
covariance
What is the motivation from Physics for the Levi-Civita connection on GR?
September 1st, 2022
general-relativity
gravity
spacetime
differential-geometry
metric-tensor
Definition of the Spacetime Interval
April 29th, 2021
metric-tensor
spacetime
special-relativity
invariants
coordinate-systems
Induced metric on a null hypersurface
May 31st, 2020
general-relativity
metric-tensor
How is the spherical coordinate metric tensor derived?
February 2nd, 2022
metric-tensor
homework-and-exercises
differential-geometry
coordinate-systems
Are basis vectors imaginary in special relativity?
August 1st, 2022
special-relativity
metric-tensor
complex-numbers
General relativity: Why don't these two differentials commute?
September 1st, 2022
general-relativity
differential-geometry
metric-tensor
How can one obtain the metric tensor numerically?
August 1st, 2022
general-relativity
metric-tensor
computational-physics
simulations
Minkowski spacetime: Is there a signature (+,+,+,+)?
October 6th, 2020
special-relativity
wick-rotation
complex-numbers
metric-tensor
spacetime
What is 'past null infinity'?
August 1st, 2022
definition
metric-tensor
spacetime
general-relativity
causality
Question about proper time in general relativity
February 21st, 2020
metric-tensor
time
general-relativity
Covariant vs contravariant vectors
August 1st, 2022
covariance
differential-geometry
metric-tensor
tensor-calculus
vectors
Infinitesimal Lorentz transformation is antisymmetric
May 13th, 2020
lie-algebra
metric-tensor
group-theory
special-relativity
homework-and-exercises
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