That had occurred to me, but I though there might be something you could prove about a topology finer than the trivial one. But I guess it fits the bill.
Greetings,
I'm helping out a student with her upcoming topology exam and something has be stomped. It's probably simple but I'm not seeing it at the moment.
Consider a Hausdorf space (X,T). Any compact subset of X is therefore closed.
The question is to prove the existence of a coarser...
Differential Equations for sure, it's the bread & butter of any physical sub-discipline.
Geometry and topology is something you can easily study in your own time should you need it later on.
I'm not sure what you mean by this. If you are referring to a book that will essentially "teach you to do research", I doubt that something like this exists. Even if it does, I don't think it will be relevant.
Every discipline and sub-discipline has it's own way of doing things. The main...
This is actually though to answer conceptually, and even ill-posed. You see, what you do with GR is find a solution to the Einstein equations given a certain mass/energy distribution. That solution is a certain spacetime. If I understand you correctly, you seem to be asking how the 3 spatial...
I've been thinking about it the last few minutes, and it's really a hard problem. It's tough enough to get wavelike solutions to Einstein's equations, the heart of general relativity (all kinds of technicalities like gauge choices etc...) without forcing it to go from a Swartzschild metric (like...
Bootcamp only let's you choose between OS's when you boot. A friend I now runs a virtual PC on his macbook (so it's not like he has that good hardware) and apparently it runs real smoothly these days. I'm thinking of checking it out myself one of these days.
Nice. I like him already. Even though I'm European, it pisses me of when people are against the war in Iraq because of anti-American sentiments or naive notions on the use of force in international politics. He sums up my sentiments quite well : the war wasn't necesarry, a burden on the US and...
I run XP on my Macbook Pro when forced to. It runs ok, in fact it's the most stable Windows that I've ever used. There are some features, such as the webcam, the lighting and the two finger scrolling on the touchpad that are not supported but other then that it works like a charm.
Good question. I'm guessing that you're asking if, in case of the sun dissappearing, the "wave front" carrying the change in spacetime geometry would make everything it hits revert to flat Minkowski space or that there are intermediate forms. Honestly, I have no idea but I wonder if anyone else...
Switzerland is one huge fortress. The entire male adult population is armed and that pictoresque mountain shack posed strategically near a mountain pass is probably an antitank gun in disguise.