Journal of Mathematical Finance, 2017, 7, 934-940
http://www.scirp.org/journal/jmf
ISSN Online: 2162-2442
ISSN Print: 2162-2434
DOI: 10.4236/jmf.2017.74051 Nov. 28, 2017 934 Journal of Mathematical Finance
On the Inverse Problem of Dupire’s Equation
with Nonlocal Boundary and Integral
Conditions
Coskun Guler
1
, Volkan Oban
2
1
Department of Mathematical Engineering, Yildiz Technical University, Istanbul, Turkey
2
Department of Mathematical Engineering, Istanbul Technical University, Istanbul, Turkey
Abstract
In this study, Inverse Problem for Dupire’s Equation with nonlocal boundary
and integral conditions is studied. Then, by means of the some transforma-
tion, this equation is converted to diffusion equation. The conditions for the
existence and uniqueness of a classical solution of the problem under consid-
eration are established and continuous dependence of ( ) , v ρ on the data is
shown. It is emphasized that this problem is well-posed.
Keywords
Mathematical Finance, Dupire’s Formula, Dupire’s Equation, Local Volatility,
Diffusion Equation, Inverse Problem, Well-Posedness
1. Introduction
In mathematical finance, Dupire’s formula (local volatility) is expressed in the
following form
( )
2
2
1
, 2
V V
rS
t S
St
S V
S
σ
∂ ∂
+
∂ ∂
=
∂
∂
The Dupire formula enables us to deduce the volatility function in a local vo-
latility model from quoted put and call options in the market. In a local volatility
model the asset price model is under a risk-neutral measurement. For the rele-
vant formula, reference [1].
Non-homogeneous Dupire’s equation is shown as follows,
How to cite this paper: Guler, C. and
Oban, V. (2017) On the Inverse Problem of
Dupire’s Equation with Nonlocal Boundary
and Integral Conditions. Journal of Ma-
thematical Finance, 7, 934-940.
https://doi.org/10.4236/jmf.2017.74051
Received: October 11, 2017
Accepted: November 25, 2017
Published: November 28, 2017
Copyright © 2017 by authors and
Scientific Research Publishing Inc.
This work is licensed under the Creative
Commons Attribution International
License (CC BY 4.0).
http://creativecommons.org/licenses/by/4.0/
Open Access