SpECTRE  v2026.04.01
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gh::Tags::ExtrinsicCurvatureCompute< SpatialDim, Frame > Struct Template Reference

Compute item to get extrinsic curvature from generalized harmonic variables and the spacetime normal vector. More...

#include <ExtrinsicCurvature.hpp>

Public Types

using argument_tags
using return_type = tnsr::ii<DataVector, SpatialDim, Frame>
using base = gr::Tags::ExtrinsicCurvature<DataVector, SpatialDim, Frame>
Public Types inherited from gr::Tags::ExtrinsicCurvature< DataVector, SpatialDim, Frame >
using type

Static Public Attributes

static constexpr auto function

Detailed Description

template<size_t SpatialDim, typename Frame>
struct gh::Tags::ExtrinsicCurvatureCompute< SpatialDim, Frame >

Compute item to get extrinsic curvature from generalized harmonic variables and the spacetime normal vector.

Details

See extrinsic_curvature(). Can be retrieved using gr::Tags::ExtrinsicCurvature.

Member Typedef Documentation

◆ argument_tags

template<size_t SpatialDim, typename Frame>
using gh::Tags::ExtrinsicCurvatureCompute< SpatialDim, Frame >::argument_tags
Initial value:
tmpl::list<gr::Tags::SpacetimeNormalVector<DataVector, SpatialDim, Frame>,
Auxiliary variable which is analytically the spatial derivative of the spacetime metric.
Definition Tags.hpp:38
Conjugate momentum to the spacetime metric.
Definition Tags.hpp:27

Member Data Documentation

◆ function

template<size_t SpatialDim, typename Frame>
auto gh::Tags::ExtrinsicCurvatureCompute< SpatialDim, Frame >::function
staticconstexpr
Initial value:
= static_cast<void (*)(
const tnsr::A<DataVector, SpatialDim, Frame>&,
const tnsr::aa<DataVector, SpatialDim, Frame>&,
const tnsr::iaa<DataVector, SpatialDim, Frame>&)>(
Require a pointer to not be a nullptr
Definition Gsl.hpp:197
void extrinsic_curvature(gsl::not_null< tnsr::ii< DataType, SpatialDim, Frame > * > ex_curv, const tnsr::A< DataType, SpatialDim, Frame > &spacetime_normal_vector, const tnsr::aa< DataType, SpatialDim, Frame > &pi, const tnsr::iaa< DataType, SpatialDim, Frame > &phi)
Computes extrinsic curvature from generalized harmonic variables and the spacetime normal vector.

The documentation for this struct was generated from the following file:
  • src/PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic/ExtrinsicCurvature.hpp