Archive for January, 2005

Buchberger’s Algorithm

Thursday, January 20th, 2005

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An algorithm for determining a Gröbner basis for a collection of polynomials.

Gröbner Basis

Tuesday, January 18th, 2005

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A Gröbner basis for a system of polynomials preserves the common roots whilst being simpler relative to an ordering.

Canonical Representation of polynomials

Saturday, January 15th, 2005

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Discussion of canonical forms for polynomials- single variable dense and sparse representations; orderings for multivariate polynomials.

Analytic proof of the Baire category theorem

Friday, January 7th, 2005

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Formulation and proof of the Baire category theorem in analytic terms (E2 already has a game-theoretic proof!)

The Baire category theorem and cardinality

Friday, January 7th, 2005

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Application of the Baire category theorem to something more interesting than functional analysis- cardinality. Demonstrates the uncountability of the reals, and the incompleteness of the rationals.