dglap.h

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//
// APFEL++ 2017
//
// Author: Valerio Bertone: valerio.bertone@cern.ch
//
 
#pragma once
 
#include "apfel/matchedevolution.h"
#include "apfel/set.h"
#include "apfel/operator.h"
 
namespace apfel
{
  template<class T>
  class Dglap: public MatchedEvolution<Set<T>>
  {
  public:
    Dglap() =  delete;
 
    Dglap(std::function<Set<Operator>(int const&, double const&)> const& SplittingFunctions,
          std::function<Set<Operator>(bool const&, int const&)>   const& MatchingConditions,
          Set<T>                                                  const& ObjRef,
          double                                                  const& MuRef,
          std::vector<double>                                     const& Thresholds,
          int                                                     const& nsteps = 10);
 
    Set<T> MatchObject(bool const& Up, int const& nf, Set<T> const& sd) const;
 
    Set<T> Derivative(int const& nf, double const& t, Set<T> const& f) const;
 
 
    void SetInitialDistributions(std::function<double(int const&, double const&)> const& InDistFunc);
 
    void SetInitialDistributions(std::function<std::map<int, double>(double const&)> const& InDistFunc);
 
    void SetInitialDistributions(std::function<std::map<int, double>(double const&, double const&)> const& InDistFunc, double const& mu);
  private:
    std::function<Set<Operator>(int const&,double const&)> _SplittingFunctions;
    std::function<Set<Operator>(bool const&,int const&)>   _MatchingConditions;
  };
}