Laplace–Carson transform

From Wikipedia, the free encyclopedia
Jump to: navigation, search

In mathematics, the Laplace–Carson transform, named after Pierre Simon Laplace and John Renshaw Carson, is an integral transform with significant applications in the field of physics and engineering, particularly in the field of railway engineering.

Definition[edit]

Let V(j,t) be a function and p a complex variable. The Laplace–Carson transform is defined as:[1]


V^\ast(j,p) = p\int^{\infty}_0 V(j,t) e^{-pt} \, dt

The inverse Laplace–Carson transform is:


V(j,t) = \frac{1}{2\pi i} \int^{a_0+i\infty}_{a_0-i\infty} e^{tp} \frac{V^\ast(j,p)}{p} \, dp

where a_0 is a real-valued constant, i\infty refers to the imaginary axis, which indicates the integral is carried out along a straight line parallel to the imaginary axis lying to the right of all the singularities of the following expression:


e^{tp}\frac{V(j,t)}{p}

See also[edit]

References[edit]

  1. ^ Frýba, Ladislav (1973). Vibration of solids and structures under moving loads. LCCN 70-151037.