79 #include "time_slice.h" 150 resu = resu / (2*
nn()) ;
170 resu = resu / (2*
nn()) ;
virtual const Vector & beta() const
shift vector at the current time step (jtime )
Metric for tensor calculation.
Sym_tensor ope_killing(const Metric &gam) const
Computes the Killing operator associated with a given metric.
int scheme_order
Order of the finite-differences scheme for the computation of time derivatives.
Tensor field of valence 0 (or component of a tensorial field).
int jtime
Time step index of the latest slice.
Evolution_std< Sym_tensor > gam_dd_evol
Values at successive time steps of the covariant components of the induced metric ...
Tensor field of valence 1.
virtual const Sym_tensor & gam_dd() const
Induced metric (covariant components ) at the current time step (jtime )
Evolution_std< Sym_tensor > k_uu_evol
Values at successive time steps of the contravariant components of the extrinsic curvature tensor ...
virtual const Scalar & trk() const
Trace K of the extrinsic curvature at the current time step (jtime )
virtual const Sym_tensor & k_uu() const
Extrinsic curvature tensor (contravariant components ) at the current time step (jtime ) ...
virtual const Sym_tensor & gam_uu() const
Induced metric (contravariant components ) at the current time step (jtime )
Evolution_std< Sym_tensor > gam_uu_evol
Values at successive time steps of the contravariant components of the induced metric ...
Evolution_std< Sym_tensor > k_dd_evol
Values at successive time steps of the covariant components of the extrinsic curvature tensor ...
const Metric & gam() const
Induced metric at the current time step (jtime )
Metric * p_gamma
Pointer on the induced metric at the current time step (jtime)
virtual const Sym_tensor & k_dd() const
Extrinsic curvature tensor (covariant components ) at the current time step (jtime ) ...
Evolution_std< double > the_time
Time label of each slice.
virtual const Sym_tensor & cov() const
Read-only access to the covariant representation.
Evolution_std< Scalar > trk_evol
Values at successive time steps of the trace K of the extrinsic curvature.
Evolution_std< Scalar > n_evol
Values at successive time steps of the lapse function N.
Evolution_std< Vector > beta_evol
Values at successive time steps of the shift vector .
Class intended to describe valence-2 symmetric tensors.
virtual const Scalar & nn() const
Lapse function N at the current time step (jtime )
Tensor down(int ind, const Metric &gam) const
Computes a new tensor by lowering an index of *this.