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Jan
9
reviewed Approve To show a matrix $A=I$ if all eigen values are $1$ and the set $\{A^n:n\in\mathbb{N}\}$ be bounded
Aug
29
reviewed Approve A normal matrix with real eigenvalues is Hermitian
Aug
29
reviewed Approve Eigenvalues for the Sturm-Liouville boundary value problem
Aug
29
reviewed Approve A normal matrix with real eigenvalues is Hermitian
Feb
6
reviewed Approve Browder sequence question
Nov
17
reviewed Approve semidirect-product tag wiki
Nov
17
reviewed Approve semidirect-product tag wiki excerpt
Nov
6
reviewed Approve What is the smallest Lie subalgebra of $ {{\frak{gl}}_{n}}(\mathbb{R}) $ whose center is the set of $ (n \times n) $-scalar matrices?
Nov
6
reviewed Approve Pullbacks and pushouts
Nov
6
reviewed Approve Left Cosets and Right Cosets.
Nov
5
reviewed Approve find solutions of the pffafian differential equation
Nov
5
reviewed Approve Proof by induction that alternating sum of binomial coefficients is $0$
Nov
4
reviewed Approve How to prove Euler's Theorem
Nov
4
reviewed Approve Is $L^2(\Omega)$ dense in $H^{-1}(\Omega)$?
Nov
4
reviewed Approve 1000 people and the number 105
Nov
4
reviewed Approve Assume $ 0<x<1 $, show that $(1+x)log^2(1+x)<x^2$
Nov
4
reviewed Approve average of a bounded convex set
Nov
4
reviewed Approve Given only the graphical representation of a curve, how can I find the function?
Oct
27
reviewed Approve Why not $f(z)=z^2$ conformal at $z=0$?
Mar
18
reviewed Approve For any point $ a $ of a compact subset $ S $ of a metric space, prove that there exists a nearest point $ c $ to $ a $.