Here are some mathematics publications available for download, indexed by author.

**Rod Downey**- Fixed-Parameter Tractability and Completeness Results 1

Fixed-Parameter Tractability and Completeness Results 2

Enumerable Sets and Quasi-reducibility

Array Nonrecursive Degrees and Genericity

Parameterized Circuit Complexity and the*W*Hierarchy

Contiguity and Distributivity in the Enumerable Turing Degrees

Contiguity and Distributivity in the Enumerable Turing Degrees - Corrigendum

The Parameterized Complexity of Relational Database Queries and an Improved Characterization of*W*[1]

Difference Sets and Computibility

There is no Fat Orbit

Parameterized Computational Feasibility

Index Sets and Parametric Reductions

On Initial Segments of Computable Linear Orders

On Computing Graph Minor Obstruction Sets

Undecidability Results for low complexity degree structures

Effective presentability of Boolean algebras of Cantor-Bendixson rank 1

The parameterized Complexity of Some Fundamental Problems of Linear Codes and Integer Lattices

On the Universal Splitting Property

The Proof-Theoretic Strength of the Dushnik-Miller Theorem for Countable Linear Orders

A Note on the Computability of Graph Minor Obstruction Sets for Monadic Second Order Ideals

Uniformly Hard Languages

Undecidability Results for low complexity time classes

A Delta 2 set that is barely Sigma 2

Parameterized Complexity: A Framework for Systematically Confronting Computational Intractability

A note on btt-degrees

Every set has a least jump enumeration

Computational Tractability: The View From Mars

Parameterized Complexity After (Almost) 10 Years: Review and Open Questions

Some Orbits for E*

Computability, Definability and Algebraic Structures

On Genericity and Ershov's Hierarchy

Questions in computable algebra and combinatorics

Maximal contiguous degrees

Computability-theoretic and proof-theoretic aspects of partial and linear orderings

Reverse mathematics, Archimedian classes and Hahn's theorem

Uniformity in Computable Structure Theory

Randomness, Computability and Density

Presentations of computably enumerable reals (PS) (PDF)

Invariance and Nonvariance in the Lattice of N01 Classes

Decomposition and infima in the computably enumerable degrees

Some Computability Theoretical Aspects of Reals and Randomness

A $\Delta^0_2$ Set with No Infinite Low Subset in Either It or Its Complement

Schnorr Randomness

Trivial Reals

The Complexity of the Random Reals

Parameterized Complexity for the Skeptic (PS) (PDF)

On Presentations of Algebraic Structures

Parameterized Complexity for the Skeptic

There are no maximal low D.C.E. degrees

Cutting Up Is Hard To Do: the Parameterized Complexity of k-Cut and Related Problems

Online problems, pathwidth, and persistence

Some Recent Progress in Algorithmic Randomness

On Self-Embeddings of Computable Linear Orderings PS PDF

Some New Directions and Questions in Parameterized Complexity

Bounded Persistance Pathwidth PS PDF

On Schnorr and computable randomness, martingales and machines PDF

Arithmetical Sacks Forcing PDF PS

Online Promise Problems with Online Width Metrics PDF

Relativizing Chaitin's Halting Probability PS

Reverse Mathematics of the Nielsen-Schreier Theorem PS

Degree Theoretic Definitions of the Low_{2}Recursively Enumerable Sets PS

Lattice Embeddings below a Nonlow_{2}Recursively Enumerable Degree PS

Calibrating Randomness PS

Ideals in Computable Rings (PS) (PDF)

Lowness for Computable Machines PS

Totally <*w*^{w}- computably enumerable degrees and*m*-topped degrees PS

Prompt Simplicity, Array Computability and Cupping PS

Lowness and $\Pi_2^0$ Nullsets PS

On minimal wtt-degrees and computably enumerable Turing degrees PS

Undecidability of the structure of the Solovay degrees of c.e. reals PS

Parameterized Approximation Problems PDF

Subspaces of Computable Vector Spaces PDF

On The Orbits of Computable Enumerable Sets (PS) (PDF)

Five Lectures on Algorithic Randomness (PS) (PDF)

Bounded Fixed-Parameter Tractability and Reducibility PDF

The Sixth Lecture on Algorithmic Randomness (PS) (PDF)

Completing pseudojump operators (PS) (PDF)

The Sixth Lecture on Algorithmic Randomness (PDF)

Lowness for Computable Machines (PS)

Turing Degrees of Reals of Positive Effect Packing Dimension (PDF) The Upward Closure of a Perfect Thin Class (PDF) The Isomorphism Problem for Torsion-Free Abelian Groups is Analytic Complete (PDF) Slender Classes (PDF) Parameterized Algorithms (PDF) The Complexity of Orbits of Computably Enumerable Sets (PDF) **Rob Goldblatt**- Rob's papers can be found at this page.
**John Harper**- Reducing Parabolic Partial Differential Equations to Canonical Form

The Coulomb potential of a line of charges

Paleomagnetism

Plate Tectonics

Bubbles rising in a line: why is the first approximation so bad?

The axisymmetric Prandtl-Batchelor eddy behind a circular disc in a uniform stream

A bubble rising in viscous fluid: Lagrange's equations for motion at a high Reynolds number

Growing bubbles rising in line

Stagnant-cap bubbles with both diffusion and adsorption rate-determining

Fortran 95 for Fortran 77 users

**Mark McGuinness**-
Modelling
lead-acid batteries.

Arnold Tongues in Human Cardiorespiratory Systems. (quite large, nearly 3MB)

Terrain-induced slugging of liquid in two-phase gas pipelines.

Coal volatilisation using the Distributed Activation Energy Model.

Tall tapered feeder design principles for casting iron.

Rice gelatinisation for brewing beer.

Solar radiative heating of first-year sea ice, as HTML, or as postscript.

Hot Dip Coating of Iron Castings in Fluidised Beds.

Nonlinear Thermal Transport and Brine Convection in First Year Sea Ice, as HTML, or as postscript. The figures are here (postscript).

Mean action time for diffusive processes.

Modelling the wetting and cooking of a single cereal grain, or cooking crispy cereal: The journal abstract is here , or you could download the full postscript version.

**Matt Visser**- Matt Visser: Publications
**Geoff Whittle**- A Characterisation of the Matroids Representable over GF(3) and the Rationals

Matroids Representable over GF(3) and other Fields

On Inequivalent Representations of Matroids over Finite Fields*

Inequivalent Representations of Ternary Matroids

On Weak Maps of Ternary Matroids

Branch-width and Rota's Conjecture