Recent content by sukmeov

Oscillator with diagonal potential (1 0 0 9).

4= 3x0+4= 3x1 +1, so degeneracy is 2. floor(4/3)+1=2... am I missing something?

Yeah. Think I was being silly. A general method might be useful for 3 or more summands... I posted an attempt above. Do you think it is correct?

Wait... If n=3n_1 + n_2 then is it just floor(n/3) +1?

Too dim for this kind of combinatorics. Could anyone refer me to/ explain a general way of approaching these without having to think :D. Thanks.

My surname's funny? Many thanks.

How does one solve the partial differential equation Uxx+Uyy+Uzz=C when C is non-zero. Here U is a function of x,y and z where (x,y,z) lies in the ball centered at 0 of radius 1 and U=0 on the boundary. Uxx, Uyy and Uzz denote second partial derivatives with respect to x, y and z. Any hints on...

Very helpful. Thank you. Ukan Sukmeov.

Many thanks. So there is no sign change in the formula, even if v is negative? Also it's not a nickname it's my surname.

I think this should be t'= Lorentz factor* (1+v/c)t, but that doesn't make sense to me.