Rough path analysis via fractional calculus
Authors:
Yaozhong Hu and David Nualart
Journal:
Trans. Amer. Math. Soc. 361 (2009), 26892718
MSC (2000):
Primary 60H10, 60H05; Secondary 26A42, 26A33, 46E35
Published electronically:
November 20, 2008
MathSciNet review:
2471936
Fulltext PDF Free Access
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Abstract: Using fractional calculus we define integrals of the form , where and are vectorvalued Hölder continuous functions of order and is a continuously differentiable function such that is Hölder continuous for some . Under some further smooth conditions on the integral is a continuous functional of , , and the tensor product with respect to the Hölder norms. We derive some estimates for these integrals and we solve differential equations driven by the function . We discuss some applications to stochastic integrals and stochastic differential equations.
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Additional Information
Yaozhong Hu
Affiliation:
Department of Mathematics, University of Kansas, Lawrence, Kansas 660452142
Email:
hu@math.ku.edu
David Nualart
Affiliation:
Department of Mathematics, University of Kansas, Lawrence, Kansas 660452142
Email:
nualart@math.ku.edu
DOI:
http://dx.doi.org/10.1090/S000299470804631X
PII:
S 00029947(08)04631X
Keywords:
Rough path,
fractional calculus,
integral,
integration by parts,
differential equation,
stability,
stochastic differential equation,
WongZakai approximation,
convergence rate.
Received by editor(s):
October 2, 2006
Received by editor(s) in revised form:
September 6, 2007
Published electronically:
November 20, 2008
Additional Notes:
The work of the first author was supported in part by the National Science Foundation under Grant No. DMS0204613 and DMS0504783.
The work of the second author was partially supported by the MCyT Grant BFM20000598 and the NSF Grant No. DMS0604207.
Article copyright:
© Copyright 2008
American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.
