[ǝ`lip·tik dif·ǝ¦ren·chǝl i`kwā·zhǝn]
MATHEMATICS A general type of second-order partial differential equation which includes Laplace's equation and has the form
where Aij, Bi, C, and F are suitably differentiable real functions of x1, x2, ..., xn , and there exists at each point (x1, x2, ..., xn ) a real linear elliptic partial differential equation transformation on the xi which reduces the quadratic form
to a sum of n squares, all of the same sign. Also known as elliptic partial differential equation.
- upper branch
- upper bright band
- Upper Cambrian
- Upper Carboniferous
- upper consolute temperature
- upper control limit
- Upper Cretaceous
- upper critical solution temperature
- upper culmination
- upper curtate
- upper cyclone
- Upper Devonian
- upper explosive limit
- upper face height
- upper flammable limit
- upper front
- upper half-power frequency
- upper high
- Upper Huronian
- upper integral
- upper inversion
- Upper Jurassic
- upper-level anticyclone
- upper-level chart
- upper-level cyclone