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Aug
27
reviewed Close the identity permutation
Aug
24
reviewed Leave Closed Is this true: Every open set $A$ contains a neighborhood whose closure is a subset of $A$.
Aug
24
reviewed Close Similar Matrices and their Jordan Canonical Forms
Aug
24
reviewed Close Finding equation for hyperbola given 2 points and center
Aug
24
reviewed Close How to derive the complex Fourier series of $s(t) = 1-e^{-2t}$?
Aug
24
reviewed Close Topology induced by discrete metrics and topology induced by singleton
Aug
24
reviewed Close Can an element in a Noetherian domain have arbitrarily long factorizations?
Aug
24
reviewed Close How to integrate $\frac{\sec x}{ \tan^2 x}$
Aug
24
reviewed Close How can I calaculate this complex series?
Aug
24
reviewed Close Can an element in a Noetherian ring have arbitrarily long factorizations?
Aug
24
reviewed Close how to solve this : $R(m)=12+5m -0.4m^2$?
Aug
23
reviewed No Action Needed Countable $\sigma$-algebra
Aug
23
reviewed Leave Closed May Algebraic Geometry be appropriate for me?
Aug
23
reviewed Leave Closed $f$ and $f'$ are in $L^1 (\Bbb R)$. Prove that $\int_{-\infty}^{\infty} f' (x)dx=0$.
Aug
23
reviewed Leave Closed A question about an unusual ODE
Aug
23
reviewed Close $G$ of finite order $2p$ ($p$ is prime). Prove that $G$ abelian.
Aug
23
reviewed Close transitive action on finite abelian subgroups
Aug
23
reviewed Close How to define ordered pairs
Aug
23
reviewed Close Sum of $\sum_{k=1}^n\sin{k\theta}$
Aug
23
reviewed Close What will be the 100th term of the series: