892 reputation
215
bio website joshphysics.com
location Los Angeles
age 28
visits member for 2 years
seen Jan 29 at 19:03

New project: phermi.com

Let me know if you know of any hard physics problems with clever solutions. (email listed to the left)

Personal website: joshphysics.com

Currently a lecturer at the UCLA Department of Physics and Astronomy.

Ph.D. theoretical high energy physics, UCLA.

BA/BS in physics/math, UC Berkeley.


Jun
28
revised Special conformal killing fields - solving for integral curves.
deleted 11 characters in body
Jun
28
revised Special conformal killing fields - solving for integral curves.
added 322 characters in body
Jun
28
comment Special conformal killing fields - solving for integral curves.
@HansLundmark Very slick; thanks.
Jun
28
comment Special conformal killing fields - solving for integral curves.
@Kirill I found where I went wrong; I hadn't originally simply directly computed $\dot y$, so I had obtained the identity $y\cdot(\dot y + b)$ which is of course still true but not what we want. I hope you don't mind if I post my own answer as well and perhaps accept it since it's a bit simpler? Thanks so much for your help!
Jun
28
comment Special conformal killing fields - solving for integral curves.
@Kirill I probably made an error, let me check my algebra.
Jun
28
comment Special conformal killing fields - solving for integral curves.
@Kirill Agreed, but how does one solve the equation at the end for $x$?
Jun
28
comment Special conformal killing fields - solving for integral curves.
Wow, bravo for all this effort. The crazy thing is that I saw this exactly at the same time that I think I've almost figured out a really tricky way to do this. See my edit to the question (the Progress! section) I'll read through this as well. Thanks again.
Jun
28
revised Special conformal killing fields - solving for integral curves.
added 652 characters in body
Jun
28
revised Special conformal killing fields - solving for integral curves.
added 408 characters in body
Jun
27
asked Special conformal killing fields - solving for integral curves.
Jun
4
comment Big O notation for complex-valued functions of a real variable
@TedShifrin Thank you.
Jun
4
asked Big O notation for complex-valued functions of a real variable
Mar
28
revised What extra assumption makes this transformation affine?
edited tags
Mar
28
comment What extra assumption makes this transformation affine?
@Rahul Ok thanks for the insight.
Mar
28
comment What extra assumption makes this transformation affine?
@Rahul Ah thanks! Does one need to restrict the field over which $V$ is defined?
Mar
28
comment What extra assumption makes this transformation affine?
@BISHD Great! One might think that such curiosity would warrant an upvote ;) ? Thanks for the edits btw.
Mar
28
awarded  Custodian
Mar
28
reviewed Approve What extra assumption makes this transformation affine?
Mar
28
comment What extra assumption makes this transformation affine?
@BISHD lol ok. I had hoped what I was asking was clear from the context, but I agree it's not entirely clear, so I changed the wording to "how weak one can make additional assumptions." How's that?
Mar
28
revised What extra assumption makes this transformation affine?
added 15 characters in body