The Diamond, October 22, 1999

Front Page: Sarah Mansen Performs at Dordt; Dordt to Host Kuyper Lecture; DDL Joins the Fight for Life News: Student Forum: Seeking to Honor GOD and Serve YOU; Shamar Explores Nature; Skillen to Speak in BJ Haan; News Briefs; Dordt Students Share Overseas Experiences; Picture Poll Opinon: Be the Sponge, Open Your Books; Are You an Abigail?; A Christian is More Than Meets the Eye; A Trailercourt Worldview: What is It? A&E: Recital Preview; Fall Festival Shows True Talent; Crimes of the Heart: Worth Seeing Sports: Summerhays\u27 Golden Days; And the Puck Has Been Dropped... ; This Season a Reflection of Bright Futurehttps://digitalcollections.dordt.edu/dordt_diamond/1527/thumbnail.jp

"Is he crazy?": Students "encounter" confrontational evangelism at ISU

This project investigates ???confrontational evangelism??? on the ISU quad by Brother Jed, the founder and president of the Campus Ministry USA, and the students??? responses. The author asks the following questions: How does the Brother Jed ???encounter??? affect students??? perceptions of religion and faith? How do these perceptions reflect on other students? How do students approach religious and/or ideological conflict? On the basis of seven interviews and participant observation, this research shows that Brother Jed???s provocative statements stimulated a wide variety of responses from students with different backgrounds and interests.unpublishe

Decay of Spatial Correlations in Thermal States

We study the cluster properties of thermal equilibrium states in theories with a maximal propagation velocity (such as relativistic QFT). Our analysis, carried out in the setting of algebraic quantum field theory, shows that there is a tight relation between spectral properties of the generator of time translations and the decay of spatial correlations in thermal equilibrium states, in complete analogy to the well understood case of the vacuum state.Comment: plain tex, 13 pages. To appear in Ann. Inst. H. Poinc. (Phys. Theor.

Non commutative truncated polynomial extensions

We introduce the notion of non commutative truncated polynomial extension of an algebra A. We study two families of these extensions. For the first one we obtain a complete classification and for the second one, which we call upper triangular, we find that the obstructions to inductively construct them, lie in the Hochschild homology of A, with coefficients in a suitable A-bimodule.Comment: 29 pages, We add some results about simplicirty (Prop. 1.11 and 3.6) and a result about rigidity (Th. 4.17

GUE minors, maximal Brownian functionals and longest increasing subsequences

We present equalities in law between the spectra of the minors of a GUE matrix and some maximal functionals of independent Brownian motions. In turn, these results allow to recover the limiting shape (properly centered and scaled) of the RSK Young diagrams associated with a random word as a function of the spectra of these minors. Since the length of the top row of the diagrams is the length of the longest increasing subsequence of the random word, the corresponding limiting law also follows.Comment: In this new version, we added some details to some of the proofs and slightly changed the title of the paper. 16 page