SimPEG.regularization.CrossGradient#

class SimPEG.regularization.CrossGradient(mesh, wire_map, approx_hessian=True, **kwargs)[source]#

The cross-gradient constraint for joint inversions.

..math::: phi_c(mathbf{m_1},mathbf{m_2}) = lambda sum_{i=1}^{M} | nabla mathbf{m_1}_i times nabla mathbf{m_2}_i |^2

All methods assume that we are working with two models only.

Attributes

whether to use the semi-positive definate approximation for the hessian.

Methods

`__call__`(model)	Computes the sum of all cross-gradient values at all cell centers.
`calculate_cross_gradient`(model[, ...])	Calculates the cross-gradients of the models at each cell center.
`deriv`(model)	Computes the Jacobian of the cross-gradient.
`deriv2`(model[, v])	Computes the Hessian of the cross-gradient.

Galleries and Tutorials using `SimPEG.regularization.CrossGradient`#