SpECTRE  v2026.04.01
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gr::Tags::DerivativesOfSpacetimeMetricCompute< SpatialDim, Frame > Struct Template Reference

Compute item to get spacetime derivative of spacetime metric from spatial metric, lapse, shift, and their space and time derivatives. More...

#include <DerivativesOfSpacetimeMetric.hpp>

Public Types

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

Static Public Attributes

static constexpr auto function

Detailed Description

template<size_t SpatialDim, typename Frame>
struct gr::Tags::DerivativesOfSpacetimeMetricCompute< SpatialDim, Frame >

Compute item to get spacetime derivative of spacetime metric from spatial metric, lapse, shift, and their space and time derivatives.

Details

See derivatives_of_spacetime_metric(). Can be retrieved using gr::Tags::DerivativesOfSpacetimeMetric.

Member Typedef Documentation

◆ argument_tags

template<size_t SpatialDim, typename Frame>
using gr::Tags::DerivativesOfSpacetimeMetricCompute< SpatialDim, Frame >::argument_tags
Initial value:
tmpl::list<
::Tags::deriv<gr::Tags::Lapse<DataVector>, tmpl::size_t<SpatialDim>,
tmpl::size_t<SpatialDim>, Frame>,
tmpl::size_t<SpatialDim>, Frame>>
Indicates the Frame that a TensorIndexType is in.
Definition IndexType.hpp:36
Prefix indicating spatial derivatives.
Definition Prefixes.hpp:46
Prefix indicating a time derivative.
Definition Prefixes.hpp:28
Definition Tags.hpp:65
Definition Tags.hpp:61
Definition Tags.hpp:25

◆ base

template<size_t SpatialDim, typename Frame>
using gr::Tags::DerivativesOfSpacetimeMetricCompute< SpatialDim, Frame >::base
Initial value:

Member Data Documentation

◆ function

template<size_t SpatialDim, typename Frame>
auto gr::Tags::DerivativesOfSpacetimeMetricCompute< SpatialDim, Frame >::function
staticconstexpr
Initial value:
= static_cast<void (*)(
spacetime_deriv_spacetime_metric,
const tnsr::i<DataVector, SpatialDim, Frame>&,
const tnsr::I<DataVector, SpatialDim, Frame>&,
const tnsr::I<DataVector, SpatialDim, Frame>&,
const tnsr::iJ<DataVector, SpatialDim, Frame>&,
const tnsr::ii<DataVector, SpatialDim, Frame>&,
const tnsr::ii<DataVector, SpatialDim, Frame>&,
const tnsr::ijj<DataVector, SpatialDim, Frame>&)>(
Require a pointer to not be a nullptr
Definition Gsl.hpp:197
void derivatives_of_spacetime_metric(gsl::not_null< tnsr::abb< DataType, SpatialDim, Frame > * > spacetime_deriv_spacetime_metric, const Scalar< DataType > &lapse, const Scalar< DataType > &dt_lapse, const tnsr::i< DataType, SpatialDim, Frame > &deriv_lapse, const tnsr::I< DataType, SpatialDim, Frame > &shift, const tnsr::I< DataType, SpatialDim, Frame > &dt_shift, const tnsr::iJ< DataType, SpatialDim, Frame > &deriv_shift, const tnsr::ii< DataType, SpatialDim, Frame > &spatial_metric, const tnsr::ii< DataType, SpatialDim, Frame > &dt_spatial_metric, const tnsr::ijj< DataType, SpatialDim, Frame > &deriv_spatial_metric)
Computes spacetime derivative of spacetime metric from spatial metric, lapse, shift,...
Tensor< T, Symmetry<>, index_list<> > Scalar
Scalar type.
Definition TypeAliases.hpp:21

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