## Proceedings of the International School of Physics "Enrico Fermi.", Volume 11N. Zanichelli, 1960 - Nuclear physics |

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Page 120

Time-

time, as an example. ... Let it possess a moment of time

sense, that there exists a co-ordinate system such that in this co-ordinate system

the ...

Time-

**symmetric**gravitational waves, regular everywhere and presumably at alltime, as an example. ... Let it possess a moment of time

**symmetry**[19] in thissense, that there exists a co-ordinate system such that in this co-ordinate system

the ...

Page 121

At the moment of time-

magnetic field, subject to the condition div h = 0, provides only two disposable

numbers per space point. In the language of Fourier analysis, 1) there are two

states of ...

At the moment of time-

**symmetry**the electric field vanishes identically. Themagnetic field, subject to the condition div h = 0, provides only two disposable

numbers per space point. In the language of Fourier analysis, 1) there are two

states of ...

Page 128

Brill deals with the special case of a universe which admits a moment of time

exist closed 3-spaces which satisfy the initial value requirement (90) >R = 0 and

which ...

Brill deals with the special case of a universe which admits a moment of time

**symmetry**and an axis of rotational**symmetry**(eqs. (78)-(81)). He proves thereexist closed 3-spaces which satisfy the initial value requirement (90) >R = 0 and

which ...

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### Contents

GENERALITÀ | 1 |

PARTE PRIMA Problemi teorici | 9 |

PARTE SECONDA Correlazioni angolari polarizzazioni e decadimenti beta | 251 |

3 other sections not shown

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### Common terms and phrases

allowed angle angular assumed calculated charge classical combination completely component connection conservation consider constant contribute correlation corresponding coupling curvature decay defined density dependence derived described determination direction discussed effects electric electromagnetic field electron element elementary emission energy equations example existence experiment experimental expression factor Fermi field final finds formula function geometrodynamics geometry give given gravitational histories initial interaction invariance known leads limit magnetic mass matrix means measured metric modes momentum neutrino neutron nuclei observed obtained operators pairs parity particle phase Phys physics polarization possible present principle problem properties purely quantity quantum quantum mechanics question radiation ratio reason reference relation relativity respect result scattering shown shows solution space spin spinor symmetry Table theory transformation transition universe vector wave weak zero