Alexander Bryzgalov

5 Questions 25 Answers 0 Followers

Questions related from Alexander Bryzgalov

What the analytical formula for the integral which is consisted of two Bessel functions product? The argument of BesselJ contains Cosh function

For the validation purporses I need to know any analitical formula of the integral (see the picture) I have tried to find something in different Tables of integrals like Gradshteyn and Ryzhik......

08 August 2017 3,992 1 View

What are the books to study General Physics at university in English?

I would like to know, which books are internationally recognized for studying Mechanics, Molecular Physics, Waves, Electricity and Magnetism, Optics and Atomic Physics. Russian favorite authors...

08 August 2017 3,711 8 View

Is the order of coordinates important in the calculus of tensors?

For example, if I use spherical coordinates, r is X1, theta is X2 and phi is X3. But could I use, for example, phi as X1, theta as X2 and r as X3 in the calculus of tensors?

03 March 2015 4,866 6 View

What is the best way to approximate mixed derivative?

I try to solve numerically the differential equation with mixed derivative. I found one possibility for the mixed derivative like y(i+1,j-1)-y(i,j-1)-y(i-1,j+1)+y(i-1,j). But may be there are...

09 September 2014 5,514 8 View

Which problem can describe this differential equation?

I have developed a code, that calculates solution of the diff(Psi,t)=diff(Psi$2,x,y)+U(x,y) equation. I know, that this equation is used in the theory of heat conductivity, but I want to find...

08 August 2014 9,879 4 View