tag:blogger.com,1999:blog-5880610.post5647014330501253924..comments2020-11-29T02:07:43.911-05:00Comments on Information Processing: Monster talkSteve Hsuhttp://www.blogger.com/profile/02428333897272913660noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5880610.post-84603754656144947212007-09-13T03:36:00.000-04:002007-09-13T03:36:00.000-04:00STS, I was thinking about your request and I think...STS, I was thinking about your request and I think a textbook is actually the place to find what you are asking for (perhaps I misunderstand). In our references the paper by Pavelle has some analytical results for solutions with spherical symmetry, but it's not very pedagogical. The paper by Sorkin et al. is nicely written and discusses the "moment in time" symmetry in more detail.<BR/><BR/>Steve Hsuhttps://www.blogger.com/profile/02428333897272913660noreply@blogger.comtag:blogger.com,1999:blog-5880610.post-69733453781128968162007-09-12T11:47:00.000-04:002007-09-12T11:47:00.000-04:00Could you give me a reference for the computations...Could you give me a reference for the computations for this type of isotropic initial condition? Even if it isn't in MTW, is there an old chestnut paper somewhere that works out the Ricci and stress-energy tensors for metrics of this general form? <BR/><BR/>I find this stuff entertaining, but don't have the hours to apply to warming up my brain on these calculations. I'd rather have somebody Sethhttps://www.blogger.com/profile/16486234948199900568noreply@blogger.comtag:blogger.com,1999:blog-5880610.post-43253072643097180592007-09-12T02:30:00.000-04:002007-09-12T02:30:00.000-04:00I didn't complain... I was just being realistic. I...I didn't complain... I was just being realistic. I'd like to have the guy who complained that I hate physics read the paper, though :-)<BR/><BR/>Our goal is to count the number of distinct initial conigurations with fixed ADM mass M. The configurations satisfy the Einstein constraints, so they make good initial data for any choice of density profile \rho (r) (note we impose a "moment in time" Steve Hsuhttps://www.blogger.com/profile/02428333897272913660noreply@blogger.comtag:blogger.com,1999:blog-5880610.post-7183160946485517092007-09-12T02:11:00.000-04:002007-09-12T02:11:00.000-04:00At the risk of being directed to some trivial exer...At the risk of being directed to some trivial exercise in Misner, Thorne and Wheeler: is it obvious your monsters represent solutions to the Einstein equations? I just wonder if the distortion of space going on is entirely consistent with the way you're distributing matter.<BR/><BR/>You've complained we don't comment on your physics, so ...Sethhttps://www.blogger.com/profile/16486234948199900568noreply@blogger.com