Department of Mathematics & Statistics Calendar February 23 March 1, 2009 Monday, February 23, 2009 3:30 PM Algebra Seminar 445 MSc Dr. Warren Wm. McGOVERN, BGSU ³Prufer Domains² 4:30 PM Calculator Workshop 445 MSc ³Linear Regression² Content applicable to MATH 112, 122, & 115. Tuesday, February 24, 2009 10:45 AM MATH 112 Instructor¹s Meeting 459 MSc 1:00 PM MATH 115 Instructor's Meeting 400 MSc 1:30 PM Analysis Seminar 447 MSc Ozgür MARTIN, BGSU ³N-supercyclic Operators, Part IV² Wednesday, February 25, 2009 12:30 PM Statistics Seminar 459 MSc Deniz AKDEMIR, BGSU ³ON A CLASS OF MULTIVARIATE SKEW DISTRIBUTIONS: PROPERTIES AND INFERENTIAL ISSUES² ABSTRACT: Flexible parametric distribution models that can represent both skewed and symmetric distributions, namely skew symmetric distributions, can be constructed by skewing symmetric kernel densities by using weight functions. In this talk, we study a multivariate symmetric family that has either centrally symmetric or spherically symmetric kernel. Specifically, we define multivariate skew symmetric forms of uniform, normal, Laplace, Logistic distributions by using the cdf¹s of the same distributions as weight functions. Matrix variate extension of these distributions are also introduced herein. To bypass the unbounded likelihood problem related to the inference about this model, we propose an estimation procedure based on the maximum product of spacings method. This idea also leads to bounded model selection criteria that can be considered as an alternative to Akaike¹s and other likelihood based criteria when the unbounded likelihood may be a problem. Applications of skew symmetric distributions to data are also considered. 3:30 PM Education Seminar 459 MSc Ray HEITGER, BGSU ³Delving into Devlin and Bressoud² ABSTRACT: I will introduce the audience to Keith Devlin (NPR¹s ³Math Guy²) and David Bressoud via their MAA online articles. Though pure mathematicians, Each has a concern and writes much about mathematics Education. Thursday, February 26, 2009 11:00 AM Foundational Math Committee Meeting 400 MSc TOPIC: MATH 128/130 textbook 1:30 PM Advisory Committee Meeting 400 MSc Friday, February 27, 2009 12:30 AM Graduate Student Seminar 400 MSc Saturday, February 28, 2009 Sunday, March 1, 2009
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