distant parallelism and gravitation [Archive]

Mihai Cartoaje

Jun29-04, 05:40 PM

<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>Anyone knows a model which approximates gravitation with non-trivial\ndistant parallelism?\n\nIs it possible?\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">  View this Usenet post in original ASCII form </a></div><P></jabberwocky>Anyone knows a model which approximates gravitation with non-trivial
distant parallelism?

Is it possible?

Arkadiusz Jadczyk

Jun30-04, 10:04 PM

<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>On Tue, 29 Jun 2004 22:40:31 +0000 (UTC), mcartoaje@netscape.net (Mihai\nCartoaje) wrote:\n\n>Anyone knows a model which approximates gravitation with non-trivial\n>distant parallelism?\n>\n>Is it possible?\n\n\nYou may like to check this:\n\nhttp://olympus.het.brown.edu/pipermail/spr/Week-of-Mon-20020624/002264.html\n\nark\n--\n\nArkadiusz Jadczyk\nhttp://www.cassiopaea.org/quantum_future/homepage.htm\n\n--\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">  View this Usenet post in original ASCII form </a></div><P></jabberwocky>On Tue, 29 Jun 2004 22:40:31 +0000 (UTC), mcartoaje@netscape.net (Mihai
Cartoaje) wrote:

>Anyone knows a model which approximates gravitation with non-trivial
>distant parallelism?
>
>Is it possible?

You may like to check this:

http://olympus.het.brown.edu/pipermail/spr/Week-of-Mon-20020624/002264.html

ark
--

Arkadiusz Jadczyk
http://www.cassiopaea.org/quantum_future/homepage.htm

--

Mihai Cartoaje

Jul1-04, 04:48 PM

<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>Arkadiusz Jadczyk <arkREMOVETHIS@ANDTHIScassiopaea.org> wrote in message news:<1iu4e05vdi4o2bebbv52dmrsbvduolj8c0@4ax.com>. ..\n\n> You may like to check this:\n\nI have read recent articles on teleparallel gravity. In those models,\nfor any solution and two vectors, we can find another solution that\nhas the same metric and for which those vectors are parallel. I am\nasking about a model in which this is not possible.\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">  View this Usenet post in original ASCII form </a></div><P></jabberwocky>Arkadiusz Jadczyk <arkREMOVETHIS@ANDTHIScassiopaea.org> wrote in message news:<1iu4e05vdi4o2bebbv52dmrsbvduolj8c0@4ax.com>...

> You may like to check this:

I have read recent articles on teleparallel gravity. In those models,
for any solution and two vectors, we can find another solution that
has the same metric and for which those vectors are parallel. I am
asking about a model in which this is not possible.

Mihai Cartoaje

Jul22-04, 04:16 AM

<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\nmcartoaje@netscape.net (Mihai Cartoaje) wrote in message news:<4b163dde.0406270919.6e48cd7f@posting.google. com>...\n> Anyone knows a model which approximates gravitation with non-trivial\n> distant parallelism?\n\nI have an idea. If w: T(M) -> R^4 is the parallelism form and\n\ng(u, v) = n_ab w_a(u) w_b(v)\n\nis the metric, then to take, in harmonic coordinates,\n\nw = sqrt( n g )\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">  View this Usenet post in original ASCII form </a></div><P></jabberwocky>mcartoaje@netscape.net (Mihai Cartoaje) wrote in message news:<4b163dde.0406270919.6e48cd7f@posting.google.com>...
> Anyone knows a model which approximates gravitation with non-trivial
> distant parallelism?

I have an idea. If w: T(M) -> R^4 is the parallelism form and

g(u, v) = n_{ab} w_a(u) w_b(v)

is the metric, then to take, in harmonic coordinates,

w = \sqrt( n g )