9,474 reputation
22758
bio website
location Moscow, Russia
age
visits member for 3 years, 9 months
seen 1 hour ago

umagon at google mail


1h
reviewed Close Prove something is divisible by a prime
9h
reviewed Close Prove that $f(\partial D)$ is closed, known $D$ is a open set, $f$ is a compact vector field
9h
reviewed Close Relations and functions class $11$
9h
reviewed Close Divisibility question regarding integer $n$
9h
reviewed Close number of pairwise distinct subsequences
9h
reviewed Close How can I compute the singular homology?
2d
reviewed Close Gerschgorin Theorem singularity proof
2d
reviewed Close If $2$ cars are parked back to back, and each travels forward $8$ miles…
2d
reviewed Close Proof for the existence of infinite integer $n$ such that $n^2 = p + 8$ (where p is some prime)
2d
reviewed Close Proving Inequality Equation with $4$ variables
2d
reviewed Close Show there exists a $c$ such that $f'(c) = \lim_{n\to\infty} f'(x_n)$
2d
reviewed Close How to find all $3\times3$ matrices $A$ that satisfies $A^2-3A-4I = 0$?
2d
reviewed Close The only sets in $R^n$ which are both open and closed are the empty set and $R^n$ itself.
2d
reviewed Close Need help finding probability distribution
2d
reviewed Close Statistical Inference: Improving An Estimator
Apr
20
reviewed Close what method should I use? The power formula? or The logarithmic formula? (indefinite integral)
Apr
20
reviewed Close Prove the triangle inequality
Apr
20
reviewed Close Pobability four letter problem
Apr
20
reviewed Close Prove that $|x+y| \leq |x|+|y|$
Apr
20
reviewed Close A basic question on convergence in distribution