• PHD CONFIRMATION SEMINAR
  • Speaker: Matt Skerritt, School of Mathematical and Physical Sciences, The University of Newcastle
  • Title: Design and Implementation of Highly Parallel Algorithms for Mathematical Computing
  • Location: Room V206, Mathematics Building (Callaghan Campus) The University of Newcastle
  • Dates: Fri, 30th Oct 2015 - Fri, 30th Oct 2015
  • Abstract:

    The use of GPUs for scientific computation has undergone phenomenal growth over the past decade, as hardware originally designed with limited instruction sets for image generation and processing has become fully programmable and massively parallel. This talk discusses the classes of problem that can be attacked with such tools, as well as some practical aspects of implementation. A direction for future research by the speaker is also discussed.

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  • CARMA OANT SEMINAR
  • Speaker: Matt Skerritt, School of Mathematical and Physical Sciences, The University of Newcastle
  • Title: Computation of an Improved Lower Bound to Giuga’s Primality Conjecture
  • Location: Room V205, Mathematics Building (Callaghan Campus) The University of Newcastle
  • Access Grid Venue: CARMA [ENQUIRIES]
  • Time and Date: 3:30 pm, Mon, 27th May 2013
  • Abstract:

    Our most recent computations tell us that any counterexample to Giuga’s 1950 primality conjecture must have at least 19,907 digits. Equivalently, any number which is both a Giuga and a Carmichael number must have at least 19,907 digits. This bound has not been achieved through exhaustive testing of all numbers with up to 19,907 digits, but rather through exploitation of the properties of Giuga and Carmichael numbers. We introduce the conjecture and an algorithm for finding lower bounds to a counterexample, then present our recent results and discuss challenges to further computation.

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  • CARMA OANT SEMINAR
  • Speaker: Matt Skerritt, School of Mathematical and Physical Sciences, The University of Newcastle
  • Title: Computing a Counterexample to Giuga's Conjecture
  • Location: Room V206, Mathematics Building (Callaghan Campus) The University of Newcastle
  • Access Grid Venue: UNewcastle [ENQUIRIES]
  • Time and Date: 3:00 pm, Mon, 12th Nov 2012
  • Abstract:

    Giuga's conjecture will be introduced, and we will discuss what's changed in the computation of a counterexample in the last 17 years.

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  • CARMA CAT(0) SEMINAR
  • Speaker: Matt Skerritt, School of Mathematical and Physical Sciences, The University of Newcastle
  • Title: The Royal Road to Hyperbolic Geometry (part 2)
  • Location: Room V205, Mathematics Building (Callaghan Campus) The University of Newcastle
  • Time and Date: 1:00 pm, Tue, 22nd Jun 2010
  • Abstract:

    We shall continue from last week, performing more hyperbolic constructions, as well as some elliptic constructions for comparison. In particular, some alternating projection algorithms will be explored in hyperbolic space. With some luck we shall confound some more of our euclidean intuitions. Audience participation is actively encouraged.

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  • CARMA CAT(0) SEMINAR
  • Speaker: Matt Skerritt, School of Mathematical and Physical Sciences, The University of Newcastle
  • Title: The Royal Road to Hyperbolic Geometry
  • Location: Room V205, Mathematics Building (Callaghan Campus) The University of Newcastle
  • Time and Date: 1:00 pm, Tue, 15th Jun 2010
  • Abstract:

    Hyperbolic geometry will be introduced, and visualised via the Cinderella software suite. Simple constructions will be performed and compared and contrasted to with Euclidean geometry. Constructions and examples will be quite elementary. Audience participation, specifically suggestions for constructions to attempt, during the demonstration is actively encouraged.The speaker apologises in advance for not being nearly as knowledgeable of the subject as he probably ought to be.

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