QuantLib: a free/open-source library for quantitative finance
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exponentialjump1dmesher.hpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2011 Klaus Spanderen
5
6 This file is part of QuantLib, a free-software/open-source library
7 for financial quantitative analysts and developers - http://quantlib.org/
8
9 QuantLib is free software: you can redistribute it and/or modify it
10 under the terms of the QuantLib license. You should have received a
11 copy of the license along with this program; if not, please email
12 <quantlib-dev@lists.sf.net>. The license is also available online at
13 <http://quantlib.org/license.shtml>.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the license for more details.
18*/
19
20/*! \file exponentialjump1dmesher.hpp
21 \brief mesher for a exponential jump mesher with high
22 mean reversion rate and low jump intensity
23*/
24
25#ifndef quantlib_exponential_jump_1d_mesher_hpp
26#define quantlib_exponential_jump_1d_mesher_hpp
27
30
31namespace QuantLib {
32
33 /*! Mesher for a exponential jump process with high
34 mean reversion rate and low jump intensity
35 \f[
36 \begin{array}{rcl}
37 dY_t &=& -\beta Y_{t-}dt + J_tdN_t \\
38 \omega(J)&=&\frac{1}{\eta_u}e^{-\frac{1}{\eta_u}J}
39 \end{array}
40 \f]
41 */
42
43 /*! References:
44 B. Hambly, S. Howison, T. Kluge, Modelling spikes and pricing
45 swing options in electricity markets,
46 http://people.maths.ox.ac.uk/hambly/PDF/Papers/elec.pdf
47 */
48
50 public:
51 ExponentialJump1dMesher(Size steps, Real beta, Real jumpIntensity,
52 Real eta, Real eps = 1e-3);
53
54 // approximation. see Hambly et.al.
55 Real jumpSizeDensity(Real x) const; // t->\inf
56 Real jumpSizeDensity(Real x, Time t) const;
57 Real jumpSizeDistribution(Real x) const; // t->\inf
59
60 private:
62 };
63}
64
65#endif
const DefaultType & t
One-dimensional simple FDM mesher object working on an index.
iterator for a linear fdm operator
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
QL_REAL Real
real number
Definition: types.hpp:50
std::size_t Size
size of a container
Definition: types.hpp:58
Definition: any.hpp:35
Real beta
Definition: sabr.cpp:200