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In many financial decision problems, such as portfolio optimization or hedging, the goal is to compute an optimal investment strategy, in order to maximize expected utility or minimize expected risk. If the volatility of the risky asset(s) follows a stochastic process and is not observable, the problems usually do not have analytical solutions. Hence, we… (More)

- LIN Jin Kun
- 2002

This paper constructs a new family in the stable homotopy of spheres πt−6S represented by hng0γ3 ∈ E 6,t 2 in the Adams spectral sequence which revisits the bn−1g0γ3-elements ∈ πt−7S constructed in [3], where t = 2p n (p − 1) + 6(p 2 + p + 1)(p − 1) and p ≥ 7 is a prime, n ≥ 4.

To satisfy the ever-increasing performance demand of Big Data and critical applications the data management needs to offer the flexible schema, high availability, light weight replica, high volume and high scalability features so as to facilitate the transaction. The in memory database (IMDB) eliminates the I/O bottleneck by storing data in main memory. We… (More)

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