String Theory in wrong hands
I was reading this thread and found it interesting how many people replied to a supposedly dying field. Witten leaving ST would be unfortunate but not the end. IMO I believe that the field requires some physics students with a very high math background, especially...
i have a question about elements in SL(2,Z3), a,b,c,d are intergers and ad-bc=1 or Det [A]=1. i have to write all the matrices of this group and prove that I do have all of them.
i know that only 3 elements exists in Z3 {[0],[1],[2]} with all others just being repeats. i.e. [-3]=0, [[4]=[1]...
thanks a bunch, I was sort of close, but never looked at the vector part of it. My first integral where dy=0 I was using (x^2+1)dx from 1-->2. I should be able to complete it now, again thank you.
My problem has force decreasing with F=(1/r^2)r, where F is a vecotr and r is unit vector. i need to find a).work done in moving from a point at r=sqrt(2) to a point at r=2*sqrt(2) by a direct radial path and (b) by a path from (1,1)-->(2,1)-->(2,2). Compare my answers.
a)I did direct radial...