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olivier dot begassat dot cours at gmail dot com


2d
reviewed Approve Which convex $2n$-gons have symmetry group $D_n$ instead of $D_{2n}$?
2d
reviewed Leave Open Proving function in real analysis
Nov
13
reviewed Reject $(n-1)$-alternative tensor on E are decomposable
Nov
3
reviewed Close How to determine if the subset is closed under scalar multiplication and vector addition
Nov
3
reviewed Close Prove there exist sets $A, B, C, D$ with $(A \cup C) × (B \cup D) \not = (A × B) \cup (C × D)$
Nov
3
reviewed Close Confusions about Linear Algebra (determinants)
Sep
19
reviewed Approve Very basic probability problem
Sep
10
reviewed Approve Solve equation with two unknowns
Sep
9
reviewed Close How is every subset of real numbers measurable despite the existence of a non-measurable set?
Aug
2
reviewed Approve Trigonometric integral evaluation: $\int 4 \sin^4 x \cos^3 x \,dx$
Jul
31
reviewed Reject A question about Markov
Jul
31
reviewed Approve how to get the answer for the following integration?
Jul
31
reviewed Close When is the localization of a module trivial?
Jul
31
reviewed Close Functions, finding related formula
Jul
31
reviewed Close To control first derivative with the function itself: $f'(x)^2\leq Cf(x)$ near where $f(x_0)=f'(x_0)=f''(x_0)=0$.
Jul
31
reviewed Close partnership calculation
Jul
31
reviewed Close How to find right coset
Jul
31
reviewed Close Lebesgue's Measure
Jul
31
reviewed Close Surjective, Injective, Bijective Functions from $\mathbb Z$ to itself
Jul
31
reviewed Approve The definition of the right regular representation