The Computer Algebra Group at Simon Fraser

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## CAG Schedule for 2005

January

**14**Vahid Dabbaghian-Abdoly, The University of Calgary. Computing Representations of Higher Degrees of Finite Groups

**24**Moe Ebrahimi, Simon Fraser University. Visualizing systems of differential equations in Maple.

**February**

**9**Ha Le, Simon Fraser University. A report on Zeilberger's algorithm.

**16**Juergen Gerhard, Maplesoft. Maple - Harnessing the Power of Mathematics. Mahdad Khatarinefahd: The Graph Theory Package.

**28**Chris Mitchell (4pm), University of London. Cryptanalysis of methods for combining confidentiality and integrity.

**March**

**23**Jeff Farr and Sara Khodadad: The Graph Theory Package. Maple demo of some Polynomial Operations (.mws) Maple demo of the Drawing Algorithms (.mws)

**April**

**6**Simon Lo, Michael Monagan, and Allan Wittkopf. A Modular Algorithm for Computing Characteristic Polynomials over Z.

**20**Aaron Bradford: Discrete Logarithms in GF(p) Mhenni Benghorbal: A Unified Formula for Integer and Arbitrary Order Symbolic Derivatives and Integrals of a Rational Polynomial.

**May**

**11**MOCAA consortium meeting, Calgary.

**12**MITACS conference, Calgary

**13**Information technology theme meeting, Calgary.

**June**

**1**Organizational Meeting.

**8**Greg Fee, CECM, Simon Fraser Univerity. A generalization of the Apollonius problem.

**15**Simon Lo, Simon Fraser University. Computing Characteristic Polynomials of an Integer Matrix in Maple. Michael Monagan, CECM, Simon Fraser University Implementing Set Operations in Linear Time in Maple

**22**Michael Mossinghof, Davidson College. A $1 Problem

**July**

**13**Marc Rybowicz, Department of Mathematics, University of Limoges. On the reliable computation of the monodromy of a plane algebraic curve.

**15**Yutaka Abe, Hokkaido Automotive Engineering College, Sapporo: The Lie Transformation in Hamiltonian Dynamics: A perturbation approach to Hamiltonian Chaos.

**17-20**Maple '05 conference, Waterloo, Ontario.

**29**Chris Mitchell (K9509, 2pm), University of London. Error Oracle Attacks and CBC Encryption

**24-27**ISSAC '05, Beijing, China

**August**

**3**CECM DAY Walter Gander, Swiss Federal Institute of Technology, Zurich. Generating Numerical Algorithms Using Computer Algebra

**4**Roman Pearce (K9509, 10:30am), Simon Fraser University. Rational Expression Simplification with Polynomial Side Relations

**September**

**14**Organizational Meeting. Roman Pearce, CECM, Simon Fraser University. A QuotientRings Package for Maple

**30**MITACS Projects Presentations. Mohammad Ghebleh, New features of the GraphTheory package. Mahdi Javadi, Creating and drawing random networks. Michael Monagan, An output-sensitive modular algorithm for resultants.

**October**

**12**Frederic Chyzak, Project Algorithms, INRIA, Roquencourt. Computing multisections of a given series solution to a linear differential operator.

**14**Roman Pearce, CECM, SFU Factoring Zero-Dimensional Polynomial Systems

**21**Michael Monagan, CECM, SFU Three Problems in Computer Algebra.

**November**

**2**Sara Khodadad, School of Computing Science, SFU, 10:00 am in K9509 Fast Rational Function Reconstruction (Masters thesis defense)

**16**Ian Anderson. 3:30pm in K9509 The Classification Problem for Lie Algebras with Applications to Differential Geometry and Differential Equations.

**18**Roman Pearce, CECM, SFU. The F4 and F5 Algorithms for Computing Groebner Bases

**30**Ha Le, CECM, SFU. 3:30pm in K9509. On a Maple implementation of algorithms for computing Ore closure.

**December**

**2**Colin Percival, MITACS. Variations on a theme: From QS to SSSIQS

**14**Marni Mishna, CECM, SFU. 3:30pm in K9509. Some Automatic Combinatorics using Symmetric Functions and Maple

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