J-function
Encyclopedia
The term J-function may refer to
- The Klein j-invariantJ-invariantIn mathematics, Klein's j-invariant, regarded as a function of a complex variable τ, is a modular function defined on the upper half-plane of complex numbers.We haveThe modular discriminant \Delta is defined as \Delta=g_2^3-27g_3^2...
in mathematics - Leverett J-function in petroleum engineering