Stability of exponential utility maximization with respect to market perturbations

We investigate the continuity of expected exponential utility maximization with respect to perturbation of the Sharpe ratio of markets. By focusing only on continuity, we impose weaker regularity conditions than those found in the literature. Specifically, we require, in addition to the $V$-compactness hypothesis of Larsen and \v{Z}itkovi\'c (2007) (ArXiv: 0706.0474), a local $bmo$ hypothesis, a condition which is seen to always be trivially satisfied in the setting of Larsen and \v{Z}itkovi\'c (2007). For markets of the form $S = M + \int \lambda d$, these conditions are simultaneously implied by the existence of a uniform bound on the norm of $\lambda \cdot M$ in a suitable $bmo$ space.Comment: Final version. To appear in "Stochastic Processes and Their Applications

Charge Correlation in Near Side Hadron-Hadron Jets at sqrt(sNN)=200GeV in PHENIX

We analyze the relative azimuthal ($\Delta\phi$) distribution of same-charge and opposite-charge particle pairs. We then remove elliptic flow background using the ZYAM method. Comparisons between near angle $\Delta\phi$ peak widths are presented for various centralities.Comment: Poster Proceedings from 2005 Quark Matter Conference. 4 Pages, 4 Figure