28 char connection_flat_C[] =
"$Header: /cvsroot/Lorene/C++/Source/Connection/connection_flat.C,v 1.6 2014/10/13 08:52:50 j_novak Exp $" ;
66 #include "connection.h"
109 cout <<
"Connection_flat::operator= : not implemented yet !" << endl ;
virtual ~Connection_flat()
destructor
Tensor_sym delta
Tensor which defines the connection with respect to the flat one: is the difference between the con...
Class intended to describe valence-2 symmetric tensors.
Connection_flat(const Map &, const Base_vect &)
Contructor from a triad, has to be defined in the derived classes.
virtual void set_etat_zero()
Sets the logical state of all components to ETATZERO (zero state).
const Base_vect *const triad
Triad with respect to which the connection coefficients are defined.
bool assoc_metric
Indicates whether the connection is associated with a metric (in which case the Ricci tensor is symme...
const Map *const mp
Reference mapping.
void operator=(const Connection_flat &)
Assignment to another Connection_flat.
Tensor * p_ricci
Pointer of the Ricci tensor associated with the connection.
virtual const Tensor & ricci() const
Computes (if not up to date) and returns the Ricci tensor associated with the current connection.
Base class for coordinate mappings.
Vectorial bases (triads) with respect to which the tensorial components are defined.