List questions from upper-lower-bounds | MathQa

Random Walk Upper-Bound. For any symmetric Random Walk, absolute value of partial sum $S_n$ never exceeds $\sqrt{2 \pi n}+\sqrt{\frac{\pi}2}$?

Published on 12 Jan 2025 - 9:45

What is the lower bound on the Frobenius norm of a product of square matrices?

Published on 12 Jan 2025 - 9:36

exchange between a random variable and a lower bound (which is such on a set of probabilty tending to 1) inside the expected value

Published on 12 Jan 2025 - 9:45

Lower bound $\int_0^\infty e^{-t-\frac{t^2}{2\sigma^2}}dt$ by $1-\frac{1}{\sigma^2}$

Published on 12 Jan 2025 - 9:43

Find the least upper bound and greatest lower bound for {$x : x^3 \ge 8 $}

Published on 12 Jan 2025 - 9:45

Find the least upper bound and greatest lower bound for { $x : \sin(x) \geq -1 $ }

Published on 12 Jan 2025 - 9:45

How can I prove that a function has a certain bound on an interval?

Published on 12 Jan 2025 - 9:45

Let S = {${a_1, a_2, a_3, ... a_n}$} be a finite nonempty set of real numbers a. prove bounded b. show lub and glb are elements of S

Published on 12 Jan 2025 - 9:45

T is a nonempty subset of S. (a) Show that T is bounded (b) Show that glb S $\leq$ glb T $\leq$ lub T $ \leq$ lubS

Published on 12 Jan 2025 - 9:45

Show that $x_0^2 = 2$ is impossible by showing $x_0^2 = 2$, then $x_0$ is not rational

Published on 12 Jan 2025 - 9:45