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olivier dot begassat dot cours at gmail dot com


Mar
12
reviewed Close The property of positive fourier series.
Mar
2
reviewed Close Choosing $5$ cards from a deck of $52$ cards
Mar
2
reviewed Close Nilpotent Subring
Mar
2
reviewed Close Proving density of $\mathbb{Q}^n$ in $\mathbb{R}^n$
Feb
26
reviewed Close How many ways can 5 of 9 factories be visited?
Feb
26
reviewed Leave Open Equality in Minkowski's inequality proof(no integrals)
Feb
26
reviewed Leave Open Proving inverse of transpose is transpose of inverse
Feb
25
reviewed Approve suggested edit on How to prove a simple proposition about local rings and maximal ideals
Feb
21
reviewed Leave Open Find the volume bounded by a cylinder.
Feb
20
reviewed Approve suggested edit on Is there a general formula to represent the cardinality of a Cartesian product of n sets?
Feb
20
reviewed Leave Open How to evaluate this integral $\int_0^{\frac{\pi}{2}}(\ln(\tan x))^2dx$?
Feb
20
reviewed Approve suggested edit on Inducing homomorphisms on localizations of rings/modules
Feb
20
reviewed Close Prove that $(a,bc)=1$ if and only if $(a,b)=1$ and $(a,c)=1$
Feb
18
reviewed Approve suggested edit on Tough contest problem
Feb
18
reviewed Close How many seconds are there in 7 3/8 minutes?
Feb
18
reviewed Leave Open How to compute the value of $1 \cdot \frac{2}3 \cdot \frac 45 \cdots$, as $n$ goes to infinity?
Feb
15
reviewed Approve suggested edit on Permutations using coefficient method
Feb
15
reviewed Approve suggested edit on $4^x-4^{x-1}=24$ what is the value of $(2x)^x$?"
Feb
14
reviewed Approve suggested edit on Structure of coalgebra on $\mathbb Z/n\mathbb Z$
Feb
8
reviewed Approve suggested edit on Limits of general functions