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Submitted on: 30 January 2018.
Revised on: 11 March 2018.
Accepted on: 06 April 2018.
SIAM Journal on Financial Mathematics
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http://reply.papertrans.cn/3/280/27931/27931-35.png
Submitted on: 21 March 2001.
Revised on: 16 April 2001.
Accepted on: 27 April 2001.
SIAM Journal on Financial Mathematics