1.

Record Nr.

UNINA9911089711203321

Autore

Brown John David

Titolo

Lower dimensional gravity / / John David Brown

Pubbl/distr/stampa

Singapore ; ; Teaneck, N.J., : World Scientific, c1988

ISBN

1-283-97143-7

981-4434-17-5

Edizione

[1st ed.]

Descrizione fisica

1 online resource (164 p.)

Disciplina

530.11

Soggetti

Quantum gravity

Supergravity

Gauge fields (Physics)

General relativity (Physics)

Symmetry (Physics)

Space and time

Particles (Nuclear physics)

Mathematical physics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

A revised version of the author' thesis. Cf. p. v.

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

CONTENTS; I INTRODUCTION; I.1 Three Dimensional Gravity; I.2 Two Dimensional Gravity; References for Chapter I; II THE ASYMPTOTIC STRUCTURE OF THREE DIMENSIONAL GRAVITY; II.1 Introduction; II.2 Solutions To Three Dimensional Gravity With Λ < 0; II.3 Global Charges and the RxSO(2) Asymptotic Symmetries; II.4 The Conformal Group Of Asymptotic Symmetries; IV.5 The Canonical Realization Of Asymptotic Symmetries; II. Appendix 1: The Initial Value Problem; II. Appendix 2: The Lie and Surface Deformation Algebras; References for Chapter II; III BL.ACK HOLES IN TWO SPACETIME DIMENSIONS

III.1 Point Sources in Two Dimensional GravityIII.2 Black Hole Solutions; References for Chapter III; IV NEUTRALIZATION OF THE COSMOLOGICAL CONSTANT IN TWO SPACETIME DIMENSIONS; IV.I Introduction; IV.1a. Particle creation.; IV.1b. Neutralization of the cosmological constant.; IV.1c. Additional features of particle creation.; IV.1d. Overview.; IV.2 Pair Creation Without Gravity; IV.2a. Lorentzian solutions.; IV.2b.



Instantons.; IV.2c. Action and probability.; IV.3 Adding Gravity; IV.3a. The gravitational equation.; IV.3b. Geometry of the instantons.; IV.4 Instantons For Pair Creation

IV..4a. Solving the equations.IV.4b. Interpretation.; IV.5 The Gravitational Action; IV.5a. Coordinate invariance.; IV.5b. Surface terms.; IV.6 Probability For Particle Creation; IV.6a. Type 1 instantons.; IV.6b. Topology change.; IV.6c. Dependence on m and e.; IV.7 The Cosmological Constant; IV.7a. Evolution from de Sitter spacetime.; IV.7b. Evolution to (nearly) flat spacetime.; IV.8 Membrane Creation In Four Dimensions; IV.8a. Four dimensional generalization.; IV.8b. Instantons.; IV.8c. Probability.; IV.8d. Neutralizing the cosmological constant.; References for Chapter IV

Sommario/riassunto

This book addresses the subject of gravity theories in two and three spacetime dimensions. The prevailing philosophy is that lower dimensional models of gravity provide a useful arena for developing new ideas and insights, which are applicable to four dimensional gravity. The first chapter consists of a comprehensive introduction to both two and three dimensional gravity, including a discussion of their basic structures. In the second chapter, the asymptotic structure of three dimensional Einstein gravity with a negative cosmological constant is analyzed. The third chapter contains a treatment



2.

Record Nr.

UNISA996716681903316

Autore

Deijl Lucas van der

Titolo

Translating the New Philosophy in the Dutch Early Enlightenment (1640-1720)

Pubbl/distr/stampa

Amsterdam : , : Amsterdam University Press, , 2025

©2025

ISBN

1-04-077572-1

1-04-078705-3

1-003-70858-7

90-485-6376-3

9781003708582

Edizione

[1st ed.]

Descrizione fisica

1 online resource (296 pages)

Collana

Studies in Early Modernity in the Netherlands Series

Classificazione

LAN009010LIT024020PHI032000

Disciplina

199/.492

Soggetti

LANGUAGE ARTS & DISCIPLINES / Linguistics / Historical & Comparative

LITERARY CRITICISM / Modern / 17th Century

PHILOSOPHY / Movements / Rationalism

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Frontmatter -- Table of Contents -- List of figures -- List of tables -- 1 Introduction -- Part I Reforming the language of philosophy -- 2 The Hobbesian Turn -- 3 Enlightened vocabularies -- Part II Translating the New Philosophy -- 4 The search for linguistic transparency -- 5 The politics of linguistic purism -- 6 The rhetoric of translation -- 7 The eclecticism of the marketplace -- 8 Conclusion -- Bibliography -- Appendix A. The Translation Corpus -- Appendix B. The Test Corpus -- Index of persons

Sommario/riassunto

A small group of freethinkers from the Dutch Republic played a key role in the major intellectual changes of the Early Enlightenment (1640-1720).In the wake of Cartesianism, their rationalist ideas transformed debates about science, theology, medicine, and political theory.