fdmklugeextouop.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2011 Klaus Spanderen
 
 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/
 
 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at
 <http://quantlib.org/license.shtml>.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the license for more details.
*/
 
#ifndef quantlib_fdm_kluge_ext_ou_op_hpp
#define quantlib_fdm_kluge_ext_ou_op_hpp
 
#include <ql/methods/finitedifferences/operators/ninepointlinearop.hpp>
#include <ql/methods/finitedifferences/operators/fdmlinearopcomposite.hpp>
#include <ql/methods/finitedifferences/utilities/fdmboundaryconditionset.hpp>
 
 
namespace QuantLib {
 
    class FdmMesher;
    class YieldTermStructure;
    class KlugeExtOUProcess;
    class ExtOUWithJumpsProcess;
    class FdmExtOUJumpOp;
    class FdmExtendedOrnsteinUhlenbeckOp;
    class ExtendedOrnsteinUhlenbeckProcess;
 
    class FdmKlugeExtOUOp : public FdmLinearOpComposite {
      public:
        FdmKlugeExtOUOp(
            const ext::shared_ptr<FdmMesher>& mesher,
            const ext::shared_ptr<KlugeExtOUProcess>& klugeOUProcess,
            const ext::shared_ptr<YieldTermStructure>& rTS,
            const FdmBoundaryConditionSet& bcSet,
            Size integroIntegrationOrder);
 
        Size size() const override;
        void setTime(Time t1, Time t2) override;
 
        Array apply(const Array& r) const override;
        Array apply_mixed(const Array& r) const override;
 
        Array apply_direction(Size direction, const Array& r) const override;
        Array solve_splitting(Size direction, const Array& r, Real s) const override;
        Array preconditioner(const Array& r, Real s) const override;
 
        std::vector<SparseMatrix> toMatrixDecomp() const override;
 
      private:
 
        const ext::shared_ptr<FdmMesher> mesher_;
        const ext::shared_ptr<ExtOUWithJumpsProcess> kluge_;
        const ext::shared_ptr<ExtendedOrnsteinUhlenbeckProcess> extOU_;
 
        const ext::shared_ptr<YieldTermStructure> rTS_;
        const FdmBoundaryConditionSet bcSet_;
 
        const ext::shared_ptr<FdmExtOUJumpOp> klugeOp_;
        const ext::shared_ptr<FdmExtendedOrnsteinUhlenbeckOp> ouOp_;
 
        const NinePointLinearOp corrMap_;
    };
}
#endif