a generalization of strong causality
thesis
- وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر
- author ندا ابراهیمی
- adviser نصرالله گرامی محمدرضا مولایی
- publication year 1388
abstract
در این رساله t_n - علیت قوی تعریف می شود. این رده ها در جدول علیت فضا- زمان بین علیت پایدار و علیت قوی قرار دارند. یک قضیه برای رده بندی آنها ثابت می شود و t_n- علیت قوی با رده های علی کارتر مقایسه می شود. همچنین ثابت می شود که علیت فشرده پایدار از t_n - علیت قوی نتیجه می شود. بعلاوه به بررسی رابطه نظریه دامنه ها با نسبیت عام می پردازیم و ثابت می کنیم که نوع خاصی از فضا- زمان های علی پایدار, با استفاده از رابطه +^k, روابط هم- پیوسته هستند که توپولوژی بازه ای آنها همان توپولوژی منیفلد است.
similar resources
Causality in Strong Shear Flows
It is well known that the standard transport equations violate causality when gradients are large or when temporal variations are rapid. We derive a modified set of transport equations that satisfy causality. These equations are obtained from the underlying Boltzmann equation. We use a simple model for particle collisions which enables us to derive moment equations non-perturbatively, i.e. with...
full textA Generalization of the Strong Castelnuovo Lemma
We consider a set X of distinct points in the n-dimensional projective space over an algebraically closed field k. Let A denote the coordinate ring of X , and let ai(X) = dimk[Tor R i (A, k)]i+1. Green’s Strong Castelnuovo Lemma (SCL) shows that if the points are in general position, then an−1(X) 6= 0 if and only if the points are on a rational normal curve. Cavaliere, Rossi and Valla conjectur...
full textEquivalence of Granger Causality and Transfer Entropy: A Generalization
Barnett et al. in 2009 proved that Granger causality and transfer entropy causality measure are equivalent for time series which have a Gaussian distribution. Granger causality test is linear, while transfer entropy a non-linear test. Many biological and physical mechanisms show to have non-Gaussian distributions. In this paper we investigate under which conditions on probability density distri...
full textA GENERALIZATION OF PRIME HYPERIDEALS
Let $R$ be a multiplicative hyperring. In this paper, we introduce and study the concept of n-absorbing hyperideal which is a generalization of prime hyperideal. A proper hyperideal $I$ of $R$ is called an $n$-absorbing hyperideal of $R$ if whenever $alpha_1o...oalpha_{n+1} subseteq I$ for $alpha_1,...,alpha_{n+1} in R$, then there are $n$ of the $alpha_i^,$s whose product ...
full textStrong causality from weak via continuous monitoring
Repeated unbiased measurements cause a continual application of the weak causality principle, leading to an apparent arrow of time for continuously-monitored quantum systems.
full textStrong Cosmic Censorship and Causality Violation
We investigate the instability of the Cauchy horizon caused by causality violation in the compact vacuum universe with the topology B × S × R, which Moncrief and Isenberg considered. We show that if the occurrence of curvature singularities are restricted to the boundary of causality violating region, the whole segments of the boundary become curvature singularities. This implies that the stron...
full textMy Resources
document type: thesis
وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023