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May
8
answered Prove that $f^{-1} (F)$ is closed
May
8
answered Proving direct sum when field is NOT of characteristic $2$.
May
8
answered Additive closure in the set of all functions $f \in \mathcal{F}(S,\mathbb{F})$ such that $f(s)=0$ for all but a finite number of elements of $S$
May
8
answered Is there an endomorphism $F$ and a vector $v$, such that $F$-invariant $span\{v, F(v), F^2(v), …\}$ is decomposable
May
7
reviewed Reject and Edit Polynomial with a prime number as a root
May
7
revised Polynomial with a prime number as a root
added 1 character in body
May
7
answered Polynomial with a prime number as a root
May
7
answered Analysis of Algorithms - Big O Notation Equivalences - Limits
May
7
revised continuity and pointwise convergence
deleted 90 characters in body
May
7
answered General Formula of the $n$th Derivative for $f(x) = xe^{2x}$
May
7
comment Integral of $e^{2\sin x}$
This integral is not elementary. The antiderivative of $\exp\bigl(2\sin x\bigr)$ cannot be written explicitly in elementary functions.
May
7
comment Isomorphism of a product $C_n \times C_m$ of cyclic groups with the cyclic group $C_{mn}$
The first two groups are isomorphic, just reorder the elements: escarbille.free.fr/group/?g=6_2b&z=0|5|1|3|2|4
May
7
reviewed Looks OK Regex for strings with no three identical consecutive characters
May
7
reviewed Leave Open Find density function of $X + Y$ , where $X, Y$ random variables.
May
7
reviewed Leave Open 2 Second Pendulum Length on The Moon
May
7
reviewed Leave Open $X$ is normal matrix and $AX=XB$ and $XA=BX$.why $A{X^*} = {X^*}B$ and ${X^*}A = B{X^*}$?
May
7
reviewed Leave Open Application of Ito's formula
May
7
reviewed Leave Open Order-preserving map of regressive functions on $\omega_1$
May
7
reviewed Close show $(x+1)^p = x^p$ + 1 (mod p)
May
7
reviewed Close Exponential Probability Question