Publications (14)
Additive manufacturing applications in astronomy: a review
Younes Chahid, Carolyn Atkins, Greg Lister +9
Despite the established role of additive manufacturing (AM) in aerospace and medical fields, its adoption in astronomy remains low. Encouraging AM integration in a risk-averse comm…
CUBES Phase A design overview -- The Cassegrain U-Band Efficient Spectrograph for the Very Large Telescope
Alessio Zanutta, Stefano Cristiani, David Atkinson +51
We present the baseline conceptual design of the Cassegrain U-Band Efficient Spectrograph (CUBES) for the Very Large Telescope. CUBES will provide unprecedented sensitivity for spe…
WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy
David Lee, Joel D. R. Vernet, Roland Bacon +23
WST - Widefield Spectroscopic Telescope: We summarise the design challenges of instrumentation for a proposed 12m class Telescope that aims to provide a large (>2.5 square degree)…
The Satisfiability Problem for Boolean Set Theory with a Choice Correspondence
Domenico Cantone, Alfio Giarlotta, Stephen Watson
Given a set U of alternatives, a choice (correspondence) on U is a contractive map c defined on a family Omega of nonempty subsets of U. Semantically, a choice c associates to each…
Resolutions of Convex Geometries
Domenico Cantone, Jean-Paul Doignon, Alfio Giarlotta +1
Convex geometries (Edelman and Jamison, 1985) are finite combinatorial structures dual to union-closed antimatroids or learning spaces. We define an operation of resolution for con…
CUBES, the Cassegrain U-Band Efficient Spectrograph: towards final design review
Matteo Genoni, Hans Dekker, Stefano Covino +39
In the era of Extremely Large Telescopes, the current generation of 8-10m facilities are likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Casse…
Rationalization of indecisive choice behavior by majoritarian ballots
José Carlos R. Alcantud, Domenico Cantone, Alfio Giarlotta +1
We describe a model that explains possibly indecisive choice behavior, that is, quasi-choices (choice correspondences that may be empty on some menus). The justification is here pr…
HRMOS White Paper: Science Motivation
Laura Magrini, Thomas Bensby, Anna Brucalassi +52
The High-Resolution Multi-Object Spectrograph (HRMOS) is a facility instrument that we plan to propose for the Very Large Telescope (VLT) of the European Southern Observatory (ESO)…
A rational measure of irrationality
Davide Carpentiere, Alfio Giarlotta, Stephen Watson
All possible types of deterministic choice behavior are classified by their degree of irrationality. This classification is performed in three steps: (1) select a benchmark of rati…
Extending rational choice behavior: The decision problem for Boolean set theory with a choice correspondence
Domenico Cantone, Alfio Giarlotta, Pietro Maugeri +1
Given the family of all nonempty subsets of a set of alternatives, a choice over is a function such that and for a…
On the number of non-isomorphic choices on four elements
Alfio Giarlotta, Angelo Petralia, Stephen Watson
We use a combinatorial approach to compute the number of non-isomorphic choices on four elements that can be explained by models of bounded rationality.
Semantics meets attractiveness: Choice by salience
Alfio Giarlotta, Angelo Petralia, Stephen Watson
We describe a context-sensitive model of choice, in which the selection process is shaped not only by the attractiveness of items but also by their semantics ('salience'). All item…
Flexure based fibre positioners: design optimisation to follow arbitrary focal plane curvature
Tom Louth, Stephen Watson, David Montgomery
The use of flexures to achieve fibre positioner motion is being actively investigated by several institutes, for example at the UK Astronomy Technology Centre (UKATC) and Leibniz-I…
A new proof for the existence of Nash equilibrium
Davide Carpentiere, Stephen Watson
We present a new proof for the existence of a Nash equilibrium, which involves no fixed point theorem. The self-contained proof consists of two parts. The first part introduces the…