Is it known that infinitely many members of the first sequence are presentable as the sums of different members of the second sequence?

21 January 2015 1 10K Report

Let m,n be any fixed natural numbers. Consider two sequences (with respect to k) "n multichoose k" and "m multichoose k"

Fatemeh Saghafi

I am not expert in this field

Badges
Science topic

More Ural Bekbaev's questions See All

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

Does $n$-power-associativity, for $n$ big enough, imply $n+1$-power- associativity for $m$-dimensional algebras over a field of characteristic zero?

Let $F$ be a field, $Char.(F)=0$ and $n$ be a natural number. We say that an algebra $A$ over $F$ is $n$-power-associative if $n_{th}$ power of any element is well defined. Is it true that there...

25 July 2018 9,251 2 View

Where can I find foreign exchange (international) reserves structure of the developed countries?

I have looked on the websites of central banks but they generally publish only total amount of reserves without its structure. Statististical data would be even better, if there are any.

18 November 2012 4,786 3 View

The Bigger You Are, the Harder You Fall (some lessons from Dinosaurs)?

Evolutionary fitness is based on an organism’s ability to adapt rapidly to changing environmental circumstances. Large-bodied mammals have been equipped with large brains (and hence a high...

06 August 2024 4,849 2 View

Are air moisture harvesting technologies effective in combating desertification?

Air moisture harvesting Air water collection devices

06 August 2024 5,473 2 View

Request a single Lecture notes for math as detailed as this that I can find in one place?

- The Existence/Uniqueness of Solutions to Higher Order Linear Differential Equations - Higher Order Homogenous Differential Equations - Wronskian Determinants of $n$ Functions - Wronskian...

03 August 2024 2,366 0 View

State of art in natural disasters?

Are increasing the costs of disasters in the affected countries.

01 August 2024 1,794 2 View

How can I get my Granzyme B flow cytometry stain to be consistent?

I have used PE and PE-Dazzle 594 fluorochromes and have managed to get NK cells to properly show GranzymeB expression after 4 hr PMA/ionomycin stimulaton, but for some reason my CD8 cells in the...

01 August 2024 7,677 2 View

What is the acceptable p-value cutoff for GO enrichment analysis ?

I have an RNA-seq data that I have analysed using Limma-voom and have extracted the gene IDs, log2FC and the p-values. At p value < 0.05, I have over 10,000 DEGs, however, when I run the GO...

31 July 2024 225 2 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 4 View

What are the roles of innovation in achieving the Sustainable Development Goals (SDG)?

31 July 2024 3,533 2 View

Can we find a statistical matrix mechanics equivalent to the Schrödinger equation?

We assume that we can find a statistical matrix mechanics equivalent to Schrödinger's PDE in two consecutive steps: i-Transform the Schrödinger PDE describing the wave function Ψ into its square...

27 July 2024 3,959 4 View

Seeking MATLAB Code for Differential Evolution in Multilevel Thresholding Image Segmentation ?

Hello, I am a research scholar currently working on a project involving image segmentation, and I am interested in using differential evolution for this purpose . I would greatly appreciate it if...

25 July 2024 9,926 1 View