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30 Aug 2019: Show that a Killing covector ka satisfies. ka;bc = Rabcdkd. A spacetime is said to be static if it possesses a timelike Killing covector ka whichis hypersurface-orthogonal. ... with ρ p > 0 then the fluid 4-velocity ua is parallel to ka. [

16 May 2024: KA Roehrig, D Skinner. – Journal of High Energy Physics. (2018).

16 May 2024: Company Name. AstraZeneca. Address. Li Ka Shing Centre (Cambridge Institute), Robinson Way, Cambridge CB2 0RE, U.K.

17 Jun 2019: A Killing vector field Ka of a metric gab satisfies. Ka;b Kb;a = 0. ... Hence show that a constant vector field Ka with one non-zero component, K4 say, is aKilling vector field if gab is independent of x4.

12 Jul 2023: Compute PHintP and use it to derive. 〈[Hint,n. a. φa(ka)]〉 = 2 Re〈Hintn. ... a. φa(ka)〉. (ii) Then, use the in-in formalism to derive a time integral expression for 〈na φa(ka)〉to linear order in λ.

17 Jun 2019: Hence a 7 ax 7 S(Ka)I, so our fourth equation is. ... Level 1 k1 = K s1 = S(C(0),S0 = •) K1 = Ka S1 = Sab.

17 Jun 2019: Let. Q(k) = aR′ (a)R(a). kaj′ (ka)j(ka). Obtain the relation. tan δ =Q(k)j2(ka)ka. ... Q(k)n(ka)j(ka)ka 1. Suppose thattan δ. γ. k0 k,. for some , with all other δ small for k k0.

30 Aug 2019: a) There exists a timelike Killing vector Ka such that LKgab = LKρ = LKp = 0. ... b) The velocity Ua is proportional to Ka. Express Ua in terms of Ka and hence show that.

17 Jun 2019: What distinguishes a stationary metric from a“static” metric? A Killing vector field Ka of a metric gab satisfies. ... Ka;b Kb;a = 0. Show that this is equivalent to. gab,cKc gacKc,b gcbKc,a = 0.

30 Aug 2019: kaakb = κkb. evaluated on the horizon, where ka is the time translation Killing vector.