| 41. | Because of the gauge invariance of general relativity, the correct formulation of cosmological perturbation theory is subtle.
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| 42. | SSA perturbation theory is developed in Nekrutkin ( 2010 ) and Hassani et al . ( 2011 ).
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| 43. | Asymptotic analysis ( perturbation theory ) is widely used in the modern applied mathematics, mechanics and physics.
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| 44. | Perturbation theory at the level of the random phase approximation captures many of the properties of composite fermions.
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| 45. | :: : : You can exactly work out the case of two Hydrogen atoms in perturbation theory.
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| 46. | The interaction of strings is most straightforwardly defined by generalizing the perturbation theory used in ordinary quantum field theory.
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| 47. | This equation can be solved using ordinary perturbation theory in the same way as regular expansion for was obtained.
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| 48. | Renormalization was first developed in quantum electrodynamics ( QED ) to make sense of infinite integrals in perturbation theory.
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| 49. | Singular perturbation theory is a rich and ongoing area of exploration for mathematicians, physicists, and other researchers.
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| 50. | But standard perturbation theory techniques don't work at distances, where the running coupling constant reaches 1.
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