What mathematical tools are suitable to describe the evolution of globally minimal surfaces?

04 May 2019 7,503 10 View

Is it really possible to get a grant to write a book?

08 September 2018 1,583 8 View

Action - this is what?

What is an action from the point of view of physics is known to everyone, but I am interested in the question of what an action is in terms of mathematical philosophy. In other words, I'm...

06 July 2018 8,333 4 View

Can I put the universe in a drop?

From the point of view of mathematics, there seems to be no obstacle for a noncompact manifold to be embedded in a closed manifold (for example, the winding of a torus everywhere densely...

05 June 2018 641 9 View

What are the interpretations of Planck length?

For example, can it be interpreted as Lorentzian reduction of the length of the Planck interval action caused by the acceleration given by the gravitational constant? Of course, in this case...

04 May 2018 9,537 31 View

Is the hypothesis correct?

Is the hypothesis on the representation of the Riemann zeta function true by the product of the sums (or the sum of products) of the probability amplitudes of a random walk along broken lines...

10 November 2017 9,475 3 View

What is the scale of a closed universe?

Are you aware of articles that deal with the Planck scale of the universe?

04 May 2016 3,238 2 View

What is the complex amplitude of the probability from the point of view of mathematics?

Somehow it turns out unfairly - physicists use this concept, but no mathematics.

03 April 2016 7,456 1 View

Do you know any expert in the field who could review this opus?

Book: The mathematical formalism of the theory of everything ABSTRACT: Despite the philosophical orientation of the book, designed to study the idealistic basis of materialism, you will not find...

11 December 2015 5,305 8 View

Octonions and their Lie algebras. Is there an alternative interpretation?

Let the linear conformal transformations (homotetics and orthogonal transformation) act on the real plane (x,y) by the real matrix a b -b a If such a matrix acts on a pair of planes, we will...

01 January 1970 348 23 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How to make a time series imputation benchmark ?

Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...

24 February 2021 7,470 7 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

Are there any candidates for an Einstein's bare cosmological constant?

It is commonly accepted that General Relativity has its own 'bare' cosmological constant that contributes together with the cosmological constant resulting from vacuum energy density for an...

23 February 2021 5,448 8 View

Resistivity of PVD TiNx thin films vs. N2 flow?

In the PVD of TiN thin films (~100A), I've found the resistivity of the TiN films dropped from ~100 to 60um*cm with N2 flow increasing up to the metallic mode ending point; then the resistivity...

21 February 2021 1,864 2 View

How can we determine the positive definiteness of multivariable polyomial? Is there any MATLAB function available for that?

Can we check the positive definiteness of a multivariable polynomial using MATLAB functions? Of course in literature, there are few complex methods that use tensor algebra. However, before going...

16 February 2021 1,218 3 View