Browsing Department of Mathematical Sciences by Title
Now showing items 116 of 16

An Analogue of Continued Fractions in Number Theory for Nevanlinna Theory
(American Mathematical Society, 20040625)We show an analogue of continued fractions in approximation to irrational numbers by rationals for Nevanlinna theory. The analogue is a sequence of points in the complex plane which approaches a given nite set of points ... 
Conceptual metaphors for isomorphism and homomorphism: Instructors’ descriptions for themselves and when teaching
(Elsevier, 2021)Group isomorphism and homomorphism are topics central to abstract algebra, yet research on instructors’ views of these concepts is limited. Based on interviews from two instructors as well as classroom video from eight ... 
Existence of a Solution to the Line Contact Problem of Elastohydrodynamic Lubrication
(Cambridge University Press, 200306)We prove the existence of a solution to a free boundary value problem arising in elastohydrodynamic lubrication. Previously, the existence was proved only under severe restrictions on the range of the physical parameters. ... 
Finitetime singularity versus global regularity for hyperviscous HamiltonJacobilike equations
(Institute of Physics, 2003)The global regularity for the two and threedimensional KuramotoSivashinsky equations is one of the major open questions in nonlinear analysis. Inspired by this question, we introduce in this paper and family of hyperviscous ... 
A graphtheoretic method for detecting potential Turing bifurcations
(American Institute of Physics, 20061122)The conditions for diffusiondriven (Turing) instabilities in systems with two reactive species are well known. General methods for detecting potential Turing bifurcations in larger reaction schemes are, on the other hand, ... 
Harmonic analysis of causal operators and their spectral properties
(Institute of Physics, 2005)The definition and study of causal operators are based on the representation theory of group algebras. We study the structure of the spectra of causal operators, obtain conditions for causal invertibility and state ... 
HOCHSCHILD COHOMOLOGY OF GROUP EXTENSIONS OF QUANTUM SYMMETRIC ALGEBRAS
(American Mathematical Society, 20100916)Quantum symmetric algebras (or noncommutative polynomial rings) arise in many places in mathematics. In this article we find the multiplicative structure of their Hochschild cohomology when the coefficients are in an ... 
Mathematically optimized cryoprotectant equilibration procedures for cryopreservation of human oocytes
(BioMed Central, 20140320)Background Simple and effective cryopreservation of human oocytes would have an enormous impact on the financial and ethical constraints of human assisted reproduction. Recently, studies have demonstrated the potential ... 
Matrical Filters and Crystallographic Composite Dilation Wavelets
(American Mathematical Society, 20110712)In 2006 Guo, Labate, Lim, Weiss, and Wilson introduced the theory of MRA composite dilation wavelets. We continue their work by studying the filter properties of such wavelets and present several important examples. 
Microelectromechanical systems Coulter counter for cell monitoring and counting
(American Institute of Physics, 2010)This note describes the design, fabrication, and testing of a novel microelectromechanical systems Coulter counter. The Coulter counter will be used to detect and monitor impedance changes of cells as a function of time ... 
Osmotic characteristics and fertility of murine spermatozoa collected in different solutions
(Society for Reproduction and Fertility, 200902)Osmotic stress is an important factor that can result in cell damage during cryopreservation. Before ejaculation or collection for cryopreservation, murine spermatozoa are stored in epididymal fluid, a physiologically ... 
A perturbed system: How tenured faculty responded to the COVID19 shift to remote instruction
(American Chemical Society, 20200813)This study investigates six university professors’ reflections on the shift to remote instruction during the Spring 2020 semester in response to the COVID19 global pandemic. The rapid shift in instructional platform ... 
Science, Technology, Engineering and Mathematics Education in the United States: Areas of Current Successes and Future Needs
(Common Ground Publishing LLC, 2012)The quality of the public school teacher has the greatest inschool impact on nurturing cognitive abilities, developing content knowledge, and increasing motivation of students. This paper analyzes if, and how, professional ... 
Structural Instability of Exponential Functions
(American Mathematical Society, 199407)We first prove some equivalent statements on Jstability of families of critically finite entire functions. Then, with these in hand, a conjecture concerning stability of the family of exponential functions is affirmatively ... 
Synergy For Science Learning: An Interdisciplinary Partnership to Improve the Quality of Science, Technology, Engineering and Mathematics Education
(Common Ground Publishing LLC, 2009)Synergy is the interaction of two or more elements to produce a combined impact greater than the sum of their separate effects. In this paper, synergy for science learning came from the amalgamation of separate, independent ... 
Value Distribution of LFunctions with Rational Moving Targets
(SCIRP, 20131001)We prove some valuedistribution results for a class of Lfunctions with rational moving targets. The class contains Selberg class, as well as the Riemannzeta function.