Why is the boundary term in the Einstein-Hilbert action, the Gibbons-Hawking-York term, generally "missing" in General Relativity courses, IMPORTANT from the variational viewpoint, geometrical setting and the needs of Black Hole Thermodynamics? Shouldn't it be also included in modern courses of General Relativity despite its global effect on the equations of motion is irrelevant (at least in the classical theory of relativistic gravity)?
Subscribe to:
Post Comments (Atom)
-
At room temperature, play-dough is solid(ish). But if you make a thin strip it cannot just stand up on it's own, so is it still solid? O...
-
I have an hydrogenic atom, knowing that its ground-state wavefunction has the standard form ψ=Ae−βrwith $A = \frac{\bet...
-
Sometimes I am born in silence, Other times, no. I am unseen, But I make my presence known. In time, I fade without a trace. I harm no one, ...
-
The gravitation formula says F=Gm1m2r2,so if the mass of a bob increases then the torque on it should also increase...
-
I want to know what happens to the space a black hole crosses over as our galaxy travels through space.
-
This image from NASA illustrates drag coefficients for several shapes: It is generally accepted that some variation of the teardrop/airfoil...
-
Small vessels generally lean into a turn, whereas big vessels lean out. Why do ships lean to the outside, but boats lean to the inside of a ...
No comments:
Post a Comment