# Browsing Faculty of Science by Issue Date

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• (University of Regina, 1991-03)
An iterated function system (IFS) is defined to be a set of contractive affine transformations. When iterated, these transformations define a closed set, called the attractor of an IFS, which has fractal characteristics. ...
• (North-Holland, 1991-12)
This paper describes rendering methods for iterated function systems (IFS’s). The rendering process consists of the generation of a field of data using an IFS and its visualization by means of computer graphics. Two groups ...
• (Canadian Human Computer Communications Society, 1995-05-17)
The study of linear fractals has gained a great deal from the study of quadratic fractals, despite important differences. Methods for classifying points in the complement of a fractal shape were originally developed for ...
• (Mineralogical Society of Great Britian, 1997-02)
The North Qoroq centre comprises a series of nested nepheline syenite intrusions and forms part of the midlate Proterozoic Gardar province of South Greenland. Within the centre fractionation has produced varied rock types ...
• (Faculty of Science, University of Regina, 2004)
• (Department of Mathematics and Statistics, University of Regina, 2004)
• (Faculty of Science, University of Regina, 2004-09)
• (Faculty of Science, University of Regina, 2005)
• (Faculty of Science, University of Regina, 2006)
• (Faculty of Science, University of Regina, 2007)
• (Elsevier, 2008)
The fixed-point iteration is a simple method for finding the maximal Hermitian positive definite solutions of the matrix equations $X\pm A^*X^{-1}A=I$ (the plus/minus equations). The convergence of this method ...
• (SIAM, 2009)
A 25-year old and somewhat neglected algorithm of Crawford and Moon attempts to determine whether a given Hermitian matrix pair $(A,B)$ is definite by exploring the range of the function $f(x) = x^*(A + iB)x/|x^*(A + ... • (SIAM, 2009) Hyperbolic quadratic matrix polynomials$Q(\lambda) = \lambda^2 A + \lambda B + C$are an important class of Hermitian matrix polynomials with real eigenvalues, among which the overdamped quadratics are those with ... • (SIAM, 2009) In this paper, we review two types of doubling algorithm and some techniques for analyzing them. We then use the techniques to study the doubling algorithm for three different nonlinear matrix equations in the critical ... • (Elsevier, 2010) We determine and compare the convergence rates of various fixed-point iterations for finding the minimal positive solution of a class of nonsymmetric algebraic Riccati equations arising in transport theory. • (SIAM, 2010) The matrix equation$X+A^TX^{-1}A=Q$has been studied extensively when$A$and$Q$are real square matrices and$Q$is symmetric positive definite. The equation has positive definite solutions under suitable conditions, ... • (Elsevier, 2010) If$A$is a matrix with no negative real eigenvalues and all zero eigenvalues of$A$are semisimple, the principal$p$th root of$A$can be computed by Newton's method or Halley's method, with a preprocessing procedure ... • (SIAM, 2010) In studying the vibration of fast trains, we encounter a palindromic quadratic eigenvalue problem (QEP)$(\lambda^2 A^T + \lambda Q + A)z = 0$, where$A, Q \in \mathbb{C}^{n \times n}$and$Q^T = Q$. Moreover, the matrix ... • (Elsevier, 2011) We study the matrix equation$X+A^{T}X^{-1}A=Q$, where$A$is a complex square matrix and$Q\$ is complex symmetric. Special cases of this equation appear in Green's function calculation in nano research and also in the ...
• (Department of Computer Science, University of Regina, 2011-03-30)
Taking into account relationships between interacting objects can improve the understanding of the dynamic model governing their behaviors. Moreover, maintaining a belief about the ongoing activity while tracking allows ...