Here is a problem I face practicing the theory of rings: Define $\phi : \mathbb{Z}[t] \to \mathbb{Q}$, a ring homomorphism (it does map $1$ to $1$). I’m trying to show that if $\phi(t)=\frac{u}{v}$ (in lower terms) then we have $\frac{m}{n}\in\operatorname{Im}(\phi)$ (in lower terms again) if and only if every prime factor of $n$ divides $v$ […]

I was woundering if anyone knows any good references about Kähler and complex manifolds? I’m studying supergravity theories and for the simpelest N=1 supergravity we’ll get these. Now in the course-notes the’re quite short about these complex manifolds. I was hoping someone of you guys might know a good (quite complete book) about the subject […]

This is going to be a relatively broad/open-ended question, so I apologize before hand if it is the wrong place to ask this. Anyways, I’m currently a 3rd year undergraduate starting to more seriously research possible grad schools. I find myself in somewhat of a weird spot as my primary interests lie in physics, but […]

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