Affiliation: | Department of Statistics, Seoul National University, Seoul, 151-742, South Korea;School of Mathematical Sciences, Shenzhen University, Shenzhen 518060, China;Carl von Ossietzky Universität Oldenburg, Institut für Mathematik, 26111 Oldenburg, Germany;1000 E. Henrietta Rd., Mathematics Department, Monroe Community College, Rochester, NY 14623, USA |