R. Mark Bradley

5 Questions 25 Answers 0 Followers

Questions related from R. Mark Bradley

Divergence of a vector field on a two-dimensional surface embedded in R^3?

Can anyone tell me the correct expression for the divergence of a vector field J on a two-dimensional surface embedded in R^3? The vector field is everywhere tangent to the surface. I need an...

25 July 2019 1,232 17 View

How can I compute the Lyapunov exponents for a nonlinear PDE?

We are interested in computing the largest Lyapunov exponent for a variant of the the Kurimoto-Sivashinsky equation in 1+1 dimensions. Any suggestions?

02 August 2016 6,490 5 View

How can I solve the second order ODE \sqrt(y)(1 + cy'') = x(x^2-1) with boundary conditions y(1) = y(-1) = 0?

Consider the boundary value problem \sqrt(y)(1 + cy'') = x(x^2-1) with boundary conditions y(1) = y(-1) = 0. Here y = y(x), the primes denote derivatives with respect to x, and c is a positive...

26 March 2014 4,236 6 View

Why do under-compressive shocks form?

Is there a way to see intuitively and physically why under-compressive shocks form? The formation of compressive (Lax) shocks makes perfect sense to me, but I can't see why under-compressive...

29 November 2013 1,907 5 View

Can an AFM scan produce a skewed image?

Is it possible that the rows in an AFM scan could be misaligned? For example, could the image of a square produced by an AFM end up being a rhombus? Also, how accurate is the aspect ratio of the...

25 October 2013 365 7 View