When closure of a path connected set is path connected again?

In general closure of a path connected set is not path connected. For example, the graph of sin(1/x) on (0,1] . However, if we require the original set to be open, does >that make the...

09 October 2019 8,505 5 View

Why are scientists trying to merge gravity and quantum physics even though gravity is just the curvature of space-time?

unification theory, string theory

02 March 2018 4,454 32 View

Can we define based covering rough graphs?

Rough graphs can be defined.By analogy can we define based covering rough graphs?

01 February 2018 6,092 0 View

Can we define Cayley graphs for rough or based covering rough or super rough groups?

Based covering rough seds, Cayley graphs

01 February 2018 2,446 1 View

What is the regular magic square matrix?

for exmple 16 3 2 13 5 10 11 18 9 6 7 12 4 15 14 1 is a magic square madrix 4x4 widh endries 1, 2,3,.... 16.

10 November 2017 7,298 8 View

Happy new yearrrr?

happy life reality research fresh

11 December 2016 3,768 15 View

Is anybody interested to topology of max plus algebras?

10 November 2016 5,932 1 View

What is the relation between nano topology and rough sets?

09 October 2016 4,800 5 View

How is the generalized inverse of block product of matrices in max plus algebra?

Max plus algebra; generalized inverse; block product of matrices

06 July 2016 6,746 1 View

How are Toeplitz systems in tropical algebras?

Tropical algebras, Toeplitz systems

03 April 2016 8,405 6 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View