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Top Questions
15
votes
Is Einstein-Hilbert action the unique action whose variation gives Einstein's field equations?
general-relativity
variational-principle
action
asked Nov 26 '13 at 5:54
physics.stackexchange.com
14
votes
For which topological spaces $X$ can one write $X \approx Y \times Y$? Is $Y$ unique?
general-topology
asked Jul 10 '12 at 20:18
math.stackexchange.com
10
votes
Why does tachyon arise in bosonic string theory?
string-theory
conformal-field-theory
tachyon
anomaly
asked Jul 6 '13 at 10:37
physics.stackexchange.com
10
votes
Effect of boundary conditions on partition functions
statistical-mechanics
condensed-matter
boundary-condition
asked Jul 10 '12 at 12:02
physics.stackexchange.com
10
votes
Quantum mechanics on Cantor set?
quantum-mechanics
mathematical-physics
mathematics
asked Aug 25 '12 at 19:21
physics.stackexchange.com
6
votes
Is it possible to construct a 1-D linear differential operator with given spectrum $0\leq\lambda_0\leq \lambda_1\leq\dots\leq\lambda_n\le\dots$?
functional-analysis
differential-operators
asked Feb 5 '15 at 0:34
math.stackexchange.com
5
votes
What equations govern the formation of droplets on a surface?
fluid-dynamics
experimental-physics
asked Jul 8 '12 at 23:01
physics.stackexchange.com
Top Answers
12
Proof of Canonical Commutation Relation (CCR)
physics.stackexchange.com
10
Irreducible Representations Of Lorentz Group
physics.stackexchange.com
9
Intersecting Wilson loops in 2D Yang-Mills
physics.stackexchange.com
7
Is there a general relationship between the conformal weight of a field and its (classical) scaling dimension?
physics.stackexchange.com
7
Why is electric field zero inside a hollow metal sphere ?
physics.stackexchange.com
7
Why Weyl invariance is important for consistent string theory?
physics.stackexchange.com
6
Poisson structure comes from hamiltonian?
physics.stackexchange.com
6
Is there a general systematic approach how to calculate the individual terms in an operator product expansion?
physics.stackexchange.com
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