The Computer Algebra Group at Simon Fraser

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CAG Schedule for 2000

January

    
12 Michael Monagan, Timing Results of a Maple Implementation of a Modified
                Version of Brown's GCD Algorithm for GCDs in Z[x,y] and Q(alpha)[x,y]
19 John Ogilvie and Greg Fee: Evaluation of Franck-Condon Factors with Maple
26 Keith Geddes: Hybrid Symbolic-Numeric Methods Applied to Definite Integrals and ODEs



February

    
02 Agnes Szanto: Solving Degenerate Polynomial Systems over C
                 Using an Extension of Characteristic Sets''
09 Janez Ales: Towards a Sparse Implementation of Revised Simplex.
16 Edgardo Cheb-Terrab: Tackling Ordinary Differential Equations in Maple
                        Using Symmetry Methods - Part I
23 Edgardo Cheb-Terrab: Tackling Ordinary Differential Equations in Maple
                        Using Symmetry Methods - Part II



March

    
01 Allan Wittkopf, ``Sparse GCD Methods/Fast Numerical Computation in Maple''
08 Greg Fee, ``Quadrature''
15 Petr Lisonek, ``The Unwinding Number''
22 Kevin Hare, ``Using Genetic Algorithms to find `nice' Polynomials''
29 No meeting




April

    
05 Agnes Szanto, ``Generalization of the Subresultant Method''
12 No meeting
19 Rick Leung, ``Groebner Bases'' (directed studies talk)
26 Colin Percival, ``A Distributed Search for Size 11 Solutions to the Tarry-Escott Problem''



May

    

03   N. Mohankumar: TANH and IMT Quadratures.
24  Edgardo Cheb-Terrab and Theodore Kolokolnikov,
         Solving First Order ODEs using Linear Transformations
31  Peter Borwein: The Unreasonable Efficacy of Symbolic Computation -or- 
                   Imagine if Gauss had Maple.



June

    
14  Meeting postponed
28  Andrew Solomon, ``Solving Alientiles with GAP''



July

    

05   Greg Fee, ``The Smith Normal Form of a Rectangular Matrix
                and How to Solve Linear Systems over the Integers''

19  Data Structures and Algorithms for Polynomial GCD Computation

   - Michael Monagan: A New Data Structure for Multivariate Polynomial
         Arithmetic over Z, Q(alpha) and GF(p^k)
   - Craig Pastro: The Dense Modular GCD Algorithm in Z[x,y,z,...]
         and Zp[w][x,y,z,...]
   - Jennifer de Kleine: ``The Sparse Modular GCD Algorithm of Zippel''
   - Allan Wittkopf: On the Design and Implementation of Brown's 
         GCD Algorithm over the Integers and Number Fields''

26  The Simplification Problem

   - Jamie Mulholland: The problem of - ``Factorization in Q[s,c]/<s^2+c^2-1> and
         Simplification of Quotients of Trigonometric Polynomials''
   - Hans Bauck: ``A Design for a Simplifier for the Elementary Constants and Functions''
   - Petr Lisonek: ``An Implementation of the Unwinding Number K(z) and its Application
         to the Simplification of Algebraic Formulae Involving Roots and Logarithms''
   - Allan Wittkopf: Determination of Maximal Symmetry Groups of Classes of
         Differential Equations



September

    

13 - Michael Monagan: "The Greatest GCD is Not Big  Enough!"

26   Greatest Common Divisors

   - Colin Percival: Fast Integer GCDs
   - Michael Monagan: The dense modular GCD algorithm over finite fields and number fields. 
   - Jennifer de Kleine: Zippel's sparse modular GCD algorithm over finite fields.



October

    

10   Differential Equations

   - Allan Wittkopf: Recent improvements to Maple's numerical ODE solvers.
   - Edgardo Cheb-Terrab: An implementation of an algorithmic approach 
                          for finding analytic solutions of systems of PDE.
   - John Ogilvie : Analysis of complicated chemical kinetics with Maple
   - Imin Chen: How primes ramify in algebraic number fields.



November

    
07   Cryptography and Simplification Tools
  - Greg Fee: Diffie Helman Crytopgrahy using Chebyshev Polynomials
  - Edgardo Cheb-Terrab: Simplification tools for Maple
  - Edgardo Cheb-Terrab: Simplification of Algebraic Expressions in Maple



December

    
05 - Janez Ales: A New Bivariate Factorization Algorithm of Shuhong Gao

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