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Mathematics : Recent Questions and Answers (Page 9)

Find answers to your questions about Mathematics or help others by answering their Mathematics questions.

Are all almost virtually free groups word hyperbolic?

Suppose $G$ is a finitely generated group with a finite symmetric generating set $A$. Lets define Cayley ball $B_A^n := (A cup {e})^n$ as the set of...

Asked on 01/03/2022 by Chain Markov

1 answer

Finding Terminal Lat/Long with initial lat/long, distance and bearing

So I have these three inputs -Reference Latitude and LongitudeDistance from reference pointBearing (in Radians)Now I'm looking for the Terminal latitude and longitude to plot in my map application. I...

Asked on 01/03/2022

1 answer

An illusionist and their assistant are about to perform the following magic trick

Let $k$ be a positive integer. A spectator is given $n=k!+k−1$ balls numbered $1,2,dotsc,n$. Unseen by the illusionist, the spectator arranges the balls into a sequence as...

Asked on 01/03/2022

2 answer

Add smaller Hamiltonian circuits to make bigger one

Is it always possible to generate a Hamiltonian circuit by adding smaller ones? For example, a 8x8 grid can be split into four 4x4 grids, each having a Hamiltonian circuit....

Asked on 01/03/2022 by correaswebert

0 answer

One number is removed from the set of integers from $1$ to $n.$ The average of the remaining numbers is $163/4.$ Which integer was removed?

One number is removed from the set of integers from $1$ to $n.$ The average of the remaining numbers is $dfrac{163}4$. Which integer was removed?Source. ...

Asked on 01/03/2022 by Drich1002

4 answer

Is it ever possible to "win" a 50/50 game with a clear goal in mind.

Lets say I have 750 dollars and want at least 1250 dollars at the end of a 50/50 game where I can bet any possible value. Is there any way...

Asked on 01/03/2022 by Big Altz

2 answer

Two sequences $f_n$ and $g_n$ such that $int_{[0,1]}f_n g_n$ does not go to $0$ as $nrightarrowinfty$, with these conditions on $f_n$ and $g_n$

Question: Suppose $f_n, g_n:[0,1]rightarrowmathbb{R}$ are measurable functions such that $f_nrightarrow 0$ a.e. on $[0,1]$ and $sup_nint_{[0,1]}|g_n|dx<infty$.Give an example of two sequences $f_n$ and $g_n$...

Asked on 01/03/2022

2 answer

finding the degree of a zero of a function with given conditions

Let $f$ be a holomorphic function at the unit circular disk and that $f(0)=0$. Now let $f$ be real valued function on the radii $[0,1)$ and...

Asked on 01/03/2022 by pencil321

2 answer

Should the subsets in this graph theory exercise be finite?

I'm reading Béla Bollobás's Modern Graph Theory and one of the exercises (I.10) says the following:Show that in an infinite graph $G$ with countably many edges there exists a...

Asked on 01/03/2022 by laurencevs

0 answer

Inverse Mellin Transform

We all know that the Inverse Mellin Transform is$$left{mathcal{M}^{-1}varphiright}(x) = f(x)=frac{1}{2 pi i} int_{c-i infty}^{c+i infty} x^{-s} varphi(s), mathrm{d}s.$$So what is my problem? I want to calculate...

Asked on 01/03/2022

0 answer

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