| Title:
             | 
Superconvergence estimates of finite element methods for American options (English) | 
| Author:
             | 
Lin, Qun | 
| Author:
             | 
Liu, Tang | 
| Author:
             | 
Zhang, Shuhua | 
| Language:
             | 
English | 
| Journal:
             | 
Applications of Mathematics | 
| ISSN:
             | 
0862-7940 (print) | 
| ISSN:
             | 
1572-9109 (online) | 
| Volume:
             | 
54 | 
| Issue:
             | 
3 | 
| Year:
             | 
2009 | 
| Pages:
             | 
181-202 | 
| Summary lang:
             | 
English | 
| . | 
| Category:
             | 
math | 
| . | 
| Summary:
             | 
In this paper we are concerned with finite element approximations to the evaluation of American options. First, following W.  Allegretto etc., SIAM J.  Numer. Anal.  {\it 39} (2001), 834--857, we introduce a novel practical approach to the discussed problem, which involves the exact reformulation of the original problem and the implementation of the numerical solution over a very small region so that this algorithm is very rapid and highly accurate. Secondly by means of a superapproximation and interpolation postprocessing analysis technique, we present sharp $L^2$-, $L^{\infty }$-norm error estimates and an $H^1$-norm superconvergence estimate for this finite element method. As a by-product, the global superconvergence result can be used to generate an efficient a posteriori error estimator. (English) | 
| Keyword:
             | 
American options | 
| Keyword:
             | 
variational inequality | 
| Keyword:
             | 
finite element methods | 
| Keyword:
             | 
optimal and superconvergent estimates | 
| Keyword:
             | 
interpolation postprocessing | 
| Keyword:
             | 
a posteriori error estimators | 
| MSC:
             | 
65K10 | 
| MSC:
             | 
65K15 | 
| MSC:
             | 
65M12 | 
| MSC:
             | 
65M60 | 
| MSC:
             | 
90A09 | 
| MSC:
             | 
91G10 | 
| MSC:
             | 
91G20 | 
| MSC:
             | 
91G60 | 
| idZBL:
             | 
Zbl 1212.65252 | 
| idMR:
             | 
MR2530538 | 
| DOI:
             | 
10.1007/s10492-009-0012-x | 
| . | 
| Date available:
             | 
2010-07-20T12:56:28Z | 
| Last updated:
             | 
2020-07-02 | 
| Stable URL:
             | 
http://hdl.handle.net/10338.dmlcz/140359 | 
| . | 
| Reference:
             | 
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| . |