Topic

# Event (relativity)

About: Event (relativity) is a research topic. Over the lifetime, 16047 publications have been published within this topic receiving 159985 citations.

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TL;DR: In this article, event study methods are described including some of the potential complications of the approach, and an example is included to illustrate the approach and to illustrate how the impact of an economic event can be measured by examining security prices surrounding the event.

Abstract: The event study is an important research tool in economics and finance. The goal of an event study is to measure the effects of an economic event on the value of firms. Event study methods exploit the fact that, given rationality in the marketplace, the effects of an event will be reflected immediately in security prices. Thus the impact can be measured by examining security prices surrounding the event. In this paper event study methods are described including some of the potential complications. An example is included to illustrate the approach.

4,193 citations

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01 Jan 1891

TL;DR: The 7th edition of the Black's Law Dictionary as discussed by the authors is the most comprehensive, authoritative, scholarly, and accessible American law dictionary ever published, and it has a strong reputation as a legal reference tool for the 21st century.

Abstract: Since Black's Law Dictionary is revised on average only once each decade, the publication of a new edition is a major event. The strong reputation that Black's has attained over the past 108 years positions it as the quintessential legal reference tool for the 21st century. The 7th edition of Black's Law Dictionary is the most comprehensive, authoritative, scholarly, and accessible American law dictionary ever published.

2,404 citations

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TL;DR: Two people, 1 and 2, are said to have common knowledge of an event E if both know it, and 1 knows that 2 knows it, 2 knows that 1 knows It, and so on.

Abstract: Two people, 1 and 2, are said to have common knowledge of an event E if both know it, 1 knows that 2 knows it, 2 knows that 1 knows it, 1 knows that 2 knows that 1 knows it, and so on.

2,119 citations

01 Jan 2016

TL;DR: This application applied longitudinal data analysis modeling change and event occurrence will help people to enjoy a good book with a cup of coffee in the afternoon instead of facing with some infectious virus inside their computer.

Abstract: Thank you very much for downloading applied longitudinal data analysis modeling change and event occurrence. As you may know, people have look hundreds times for their favorite novels like this applied longitudinal data analysis modeling change and event occurrence, but end up in malicious downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they are facing with some infectious virus inside their computer.

2,102 citations

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TL;DR: In this article, it was shown that in all except the spherically symmetric cases there is a nontrivial causality violation, i.e., there are closed timelike lines which are not removable by taking a covering space; moreover, when the charge or angular momentum is so large that there are no Killing horizons, this causal violation is of the most flagrant possible kind in that it is possible to connect any event to any other by a future-directed time line.

Abstract: The Kerr family of solutions of the Einstein and Einstein-Maxwell equations is the most general class of solutions known at present which could represent the field of a rotating neutral or electrically charged body in asymptotically flat space. When the charge and specific angular momentum are small compared with the mass, the part of the manifold which is stationary in the strict sense is incomplete at a Killing horizon. Analytically extended manifolds are constructed in order to remove this incompleteness. Some general methods for the analysis of causal behavior are described and applied. It is shown that in all except the spherically symmetric cases there is nontrivial causality violation, i.e., there are closed timelike lines which are not removable by taking a covering space; moreover, when the charge or angular momentum is so large that there are no Killing horizons, this causality violation is of the most flagrant possible kind in that it is possible to connect any event to any other by a future-directed timelike line. Although the symmetries provide only three constants of the motion, a fourth one turns out to be obtainable from the unexpected separability of the Hamilton-Jacobi equation, with the result that the equations, not only of geodesics but also of charged-particle orbits, can be integrated completely in terms of explicit quadratures. This makes it possible to prove that in the extended manifolds all geodesics which do not reach the central ring singularities are complete, and also that those timelike or null geodesics which do reach the singularities are entirely confined to the equator, with the further restriction, in the charged case, that they be null with a certain uniquely determined direction. The physical significance of these results is briefly discussed.

1,881 citations