# Roman Pearce

I am a research associate and member of the
Computer Algebra Group at the CECM.

The work here is all joint work with Michael Monagan at Simon Fraser University.

We are supported by the MITACS NCE, NSERC of Canada,
and Maplesoft.

### Groebner Bases and Polynomial Systems

mgb
is a C library for computing Groebner bases modulo a prime.

A Maple wrapper is provided to compute over the rationals.

### Sparse Distributed Multivariate Polynomials

sdmp is a C library for sparse multivariate polynomial arithmetic.

Our polynomial data structure is now used in Maple by default.

### Publications

A Compact Parallel Implementation of F4 presented at PASCO 2015

The design of Maple’s sum-of-products and POLY data structures for representing mathematical objects in the CCA.

POLY: a new polynomial data structure for Maple 17 demonstrated at ISSAC 2012

Sparse Polynomial Powering Using Heaps presented at CASC 2012

Parallel Sparse Polynomial Division Using Heaps
presented at PASCO 2010

Parallel Sparse Polynomial Multiplication Using Heaps
presented at ISSAC 2009

Sparse Polynomial Division Using a Heap
in the Journal of Symbolic Computation.

Polynomial Division using Dynamic Arrays, Heaps, and Packed Exponent Vectors
presented at CASC 2007.

Rational Expression Simplification Modulo a Polynomial Ideal
presented at ISSAC 2006.

### Features in Maple

Maple 18: poly improvements, sparse powering

Maple 17: poly data structure and algorithms

Maple 16: parallel division, heap efficiency gains

Maple 15: powering algorithms, Kronecker substitution, Z_{p} multiprecision

Maple 14: sdmp Z/Q

Maple 13:
sdmp Z_{p},
dense linear solver

Maple 12: sparse linear solver over Q

Maple 11: current Groebner package,
improved simplify with side relations

Maple 10: PolynomialIdeals package

You can also find me on MaplePrimes.

Feel free to drop me a line.
My work address is rpearcea at cecm dot sfu dot ca.