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Jan
21
awarded  Yearling
Jan
17
awarded  Popular Question
Jan
10
comment For a surface with $K=0$ everywhere, show that the holonomy group reduces to the identity element.
Thanks for the comments! So how would I work in the requirement that the surface has to be simply connected?
Jan
10
comment For a surface with $K=0$ everywhere, show that the holonomy group reduces to the identity element.
I am intuitively inclined to think that on the cone also the holonomy group should be trivial. Maybe I am missing something. Thanks for your comment!
Jan
9
comment For a (left) ideal $I$, how can $R \cdot I$ be a proper subset?
As a complete aside, if you want to make a larger space in LaTeX you can use \quad.
Jan
9
asked For a surface with $K=0$ everywhere, show that the holonomy group reduces to the identity element.
Jan
3
revised Slight problem with solving a trigonometric equation.
added 407 characters in body
Jan
3
comment Slight problem with solving a trigonometric equation.
I will update my answer!
Jan
3
answered Slight problem with solving a trigonometric equation.
Jan
3
answered Prove by induction that $\sum_{k=0}^{n}(-1)^{n+k} k^{2} = \frac{n(n+1)}{2}$
Jan
3
comment How do I evaluate $\sum_{r=1}^{n} [r(r+1)(r+2)(r+3)] $?
You could also expand it in terms of $r^4$, $r^3$, $r^2$, $r$ and $r^0$ and then use the formulas for those sums separately.
Jan
3
revised What are other methods to Evaluate $\int_0^{\infty} \frac{y^{m-1}}{1+y} dy$?
added 310 characters in body
Jan
3
answered Showing that $1 - \frac{x^2}2\leq\cos x$, $\forall x \in \mathbb{R}$
Jan
3
revised What are other methods to Evaluate $\int_0^{\infty} \frac{y^{m-1}}{1+y} dy$?
added 281 characters in body
Jan
3
answered What are other methods to Evaluate $\int_0^{\infty} \frac{y^{m-1}}{1+y} dy$?
Dec
29
comment Curve on a torus
Also, the torus is a surface of revolution which means that you can apply Clairaut's relation. This way you can find geodesics on the torus.
Dec
29
comment Curve on a torus
This may help rdrop.com/~half/math/torus/torus.geodesics.pdf
Dec
28
revised Likelihood Ratio and Neyman-Pearson factorization theorem
Latexed it up
Dec
28
awarded  Custodian
Dec
28
reviewed No Action Needed How can I deduce the value of $\frac{1}{\sqrt{4\pi t}}\int_{-\infty}^{\infty}\sin(y)e^{-\frac{(x-y)^2}{4t} } dy$ without actually evaluating it?