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TZID:Australia/Sydney
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TZID:Australia/Sydney
X-LIC-LOCATION:Australia/Sydney
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TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:19700308T020000
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TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:19701101T020000
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191024T160000
DTEND;TZID=Australia/Sydney:20191024T170000
SUMMARY:CARMA Seminar\n "First principles molecular dynamics: a tool to study materials at the atomic scale"\n Dr Carlo Massobrio
LOCATION:VG10, Mathematics Building
DESCRIPTION:CARMA Seminar\nVG10, Mathematics Building\n"First principles molecular dynamics: a tool to study materials at the atomic scale"\nDr Carlo Massobrio\n\nAbstract:\nThis talk will focus on the basic concepts of first-principles molecular dynamics (FPMD) and on some related applications developed within our team at IPCMS in Strasbourg. We are interested in achieving quantitative predictions for materials at the atomic scale by relying on models based on an appropriate account of chemical bonding. This scheme allows for the production of temporal trajectories ensuring the connection between statistical mechanics and macroscopic properties. FPMD lies at the crossroad between molecular dynamics and density functional theory, this latter playing the role of potential energy depending on both the atomic and electronic structure of the system. Examples will be provided for several areas within computational materials science, with special emphasis on disordered materials.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20190730T083322
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191029T083000
DTEND;TZID=Australia/Sydney:20191029T093000
SUMMARY:DEFT Members' Meeting
LOCATION:
DESCRIPTION:DEFT Members' Meeting\n\n
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191014T101309
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191029T110000
DTEND;TZID=Australia/Sydney:20191029T120000
SUMMARY:PhD Confirmation Seminar\n "From single cells to insect swarms: Non-local Advection for some problems in Biology"\n Fillipe Georgiou
LOCATION:SRG01 ( Campus, The University of Newcastle)
DESCRIPTION:PhD Confirmation Seminar\nSRG01( Campus, The University of Newcastle)\n\n"From single cells to insect swarms: Non-local Advection for some problems in Biology"\nFillipe Georgiou\n\nAbstract:\nClassic modelling of biological systems assumes the length scale of interaction is far less than the modelling length scale. However, biological interactions can occur over long ranges via mechanisms such as sight and smell. It is possible to capture these interactions using classic conservation laws with a non-local velocity term. In this talk I will present various applications of non-local modelling from the modelling of phagocytosis at a single cell level up to the swarming behaviour of locusts. I will also look at various analysis and simulation techniques needed to approach these problems. Finally, I will present future goals and direction for my work.
UID:1173
SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191021T144513
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191030T120000
DTEND;TZID=Australia/Sydney:20191030T130000
SUMMARY:CARMA Seminar\n "The Role of Stokes lines in Physical Systems"\n Dr Chris Lustri
LOCATION:VG10, Mathematics Building
DESCRIPTION:CARMA Seminar\nVG10, Mathematics Building\n"The Role of Stokes lines in Physical Systems"\nDr Chris Lustri\n\nAbstract:\nSystems with small parameters are often studied using asymptotic techniques. Despite the ubiquity of these techniques, many classical asymptotic methods are unable to capture behaviour that occurs on an exponentially small scale, which lies "beyond all orders" of power series in the small parameter. Typically this does not cause any issues; this behaviour is too small to have a measurable impact on the overall behaviour of the system. I will showcase two systems in which exponentially small contributions have a significant effect on the overall system behaviour.\n\nThe first system, which I will discuss in detail, will be nonlinear waves propagating through particle chains with periodic masses. I will show that it is typically possible for Toda and FPUT lattices for certain combinations of parameters - determined by the exponentially small system behaviour - to produce solitary waves that propagate indefinitely. The second system, which I will discuss more briefly, will be the shape of bubbles in a steadily translating Hele-Shaw cell. By studying exponentially small effects, it is possible to construct exotic bubble shapes which correspond to recent laboratory experiments.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191018T115338
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191031T160000
DTEND;TZID=Australia/Sydney:20191031T170000
SUMMARY:CARMA Seminar\n "What is a self-similar group?"\n Dr Alejandra Garrido
LOCATION:VG10, Mathematics Building
DESCRIPTION:CARMA Seminar\nVG10, Mathematics Building\n"What is a self-similar group?"\nDr Alejandra Garrido\n\nAbstract:\nSelf-similarity (when part of an object is a scaled version of the whole) is one of the most basic forms of symmetry. While known and used since ancient times, its use and investigation took off in the 1980s thanks to the advent of fractals, whose infinite self-similar structure has captured the imagination of mathematicians and lay people alike.\n \nSelf-similar fractals are highly symmetrical, so much so that even their symmetry groups exhibit self-similarity. In this talk, I will introduce and discuss groups which are self-similar, or fractal, in an algebraic sense; their connections to fractals, symbolic dynamics and automata theory; how they produce fascinating new examples in group theory, and some research questions in this lively new area.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20190906T102712
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191101T120000
DTEND;TZID=Australia/Sydney:20191101T163000
SUMMARY:Symmetry in Newcastle
LOCATION:V109, Mathematics Building
DESCRIPTION:Symmetry in Newcastle\nV109, Mathematics Building\n
Schedule:
12-1: Anthony Dooley
1-2: Lunch
2-3: Colin Reid
3-3.30: Tea
3.30-4.30: Michael Barnsley
\n\n"Classification of non-singular systems and critical dimension"\nProf Anthony Dooley\n\nAbstract:\nA non-singular measurable dynamical system is a measure space $X$ whose measure $\mu$ has the property that $\mu $ and $\mu \circ T$ are equivalent measures (in the sense that they have the same sets of measure zero).\nHere $T$ is a bimeasurable invertible transformation of $X$. The basic building blocks are the \emph{ergodic} measures.\nVon Neumann proposed a classification of non-singular ergodic dynamical systems, and this has been elaborated subsequently by Krieger, Connes and others. This work has deep connections with C*-algebras.\n\nI will describe some work of myself, collaborators and students which explore the classification of dynamical systems from the point of view of measure theory. In particular, we have recently been exploring the notion of critical dimension, a study of the rate of growth of sums of Radon-Nikodym derivatives $\Sigma_{k=1}^n \frac{d\mu \circ T^k}{d\mu}$. Recently, we have been replacing the single transformation $T$ with a group acting on the space $X$. \n"Piecewise powers of a minimal homeomorphism of the Cantor set"\nDr Colin Reid\n\nAbstract:\nLet $X$ be the Cantor set and let $g$ be a minimal homeomorphism of $X$ (that is, every orbit is dense). Then the topological full group $\tau[g]$ of $g$ consists of all homeomorphisms $h$ of $X$ that act 'piecewise' as powers of $g$, in other words, $X$ can be partitioned into finitely many clopen pieces $X_1,...,X_n$ such that for each $i$, $h$ acts on $X_i$ as a constant power of $g$. Such groups have attracted considerable interest in dynamical systems and group theory, for instance they characterize the homeomorphism up to flip conjugacy (Giordano--Putnam--Skau) and they provided the first known examples of infinite finitely generated simple amenable groups (Juschenko--Monod). My talk is motivated by the following question: given $h\in\tau[g]$ for some minimal homeomorphism $g$, what can the closures of orbits of $h$ look like?\n\nCertainly $h\in\tau[g]$ is not minimal in general, but it turns out to be quite close to being minimal, in the following sense: there is a decomposition of $X$ into finitely many clopen invariant pieces, such that on each piece $h$ acts a homeomorphism that is either minimal or of finite order. Moreover, on each of the minimal parts of $h$, then either $h$ or $h^{-1}$ has a 'positive drift' with respect to the orbits of $g$; in fact, it can be written in a canonical way as a conjugate of a product of induced transformations (aka first return maps) of $g$.\n\nNo background knowledge of topological full groups is required; I will introduce all the necessary concepts in the talk.\n"Dynamics on Fractals"\nProf Michael Barnsley\n\nAbstract:\nI will outline a new theory of fractal tilings. The approach uses graph iterated function systems (IFS) and centers on underlying symbolic shift spaces. These provide a zero dimensional representation of the intricate relationship between shift dynamics on fractals and renormalization dynamics on spaces of tilings. The ideas I will describe unify, simplify, and substantially extend key concepts in foundational papers by Solomyak, Anderson and Putnam, and others. In effect, IFS theory on the one hand, and self-similar tiling theory on the other, are unified.\n\nThe work presented is largely new and has not yet been submitted for publication. It is joint work with Andrew Vince (UFL) and Louisa Barnsley. The presentation will include links to detailed notes. The figures illustrate 2d fractal tilings.\n\nBy way of recommended background reading I mention the following awardwinning paper: M. F. Barnsley, A. Vince, Self-similar polygonal tilings, Amer. Math. Monthly 124 (1017) 905-921.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191023T103651
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191114T140000
DTEND;TZID=Australia/Sydney:20191114T150000
SUMMARY:Honours Seminars\n "Automorphism groups of complexes"\n Peter Groenhout
LOCATION:SRG01 ( Campus, The University of Newcastle)
DESCRIPTION:Honours Seminars\nSRG01( Campus, The University of Newcastle)\n\n"Automorphism groups of complexes"\nPeter Groenhout\n\nAbstract:\nAutomorphism groups of complexes are a productive area of study\nnot only for studying the structure of complexes but also providing\nexamples of groups of various kinds. Because we are dealing with\ninfinite groups of automorphisms, one important area of research is\nderiving properties of the automorphism group of a complex from\nproperties of the originating complex.
UID:1179
SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191113T110934
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191114T160000
DTEND;TZID=Australia/Sydney:20191114T170000
SUMMARY:CARMA Seminar\n "Isomorphism, homogeneity and self-duality of convex cones"\n Bruno Figueira LourenĂ§o
LOCATION:SR202, SR Building
DESCRIPTION:CARMA Seminar\nSR202, SR Building\n"Isomorphism, homogeneity and self-duality of convex cones"\nBruno Figueira LourenĂ§o\n\nAbstract:\nIn this talk, we will discuss three problems\nrelated to the theory of convex cones.\nNamely, i) the isomorphism problem, ii) the homogeneity problem and the\niii) self-duality problem. \nAfter explaining why one should care about such questions, I will present\na few results on those problem. In particular, I will cover recent\nresults on the p-cones and their automorphism groups.\nThis is a joint work with Masaru Ito (Nihon University)
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191108T102017
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191119T160000
DTEND;TZID=Australia/Sydney:20191119T170000
SUMMARY:CARMA Seminar\n "Generalised Polygons and their Symmetries"\n James Evans
LOCATION:SR202, SR Building
DESCRIPTION:CARMA Seminar\nSR202, SR Building\n"Generalised Polygons and their Symmetries"\nJames Evans\n\nAbstract:\nGeneralised polygons were first introduced by Jacque Tits in 1959, in the context of studying geometric realisations of the finite simple groups of Lie type. Thus, the study of their symmetry groups and symmetry properties is a rich area of research. My work has focused on studying the point-primitive quadrangles. In my talk I will describe a computer program for testing whether a particular group can act point-primitively on a generalised quadrangle and its application to analysing the almost simple sporadic groups. My work on this program motivated the discovery of a new result dubbed the Line Orbit Lemma, which in turn inspired the conjecturing of the Hemisystem Conjecture, both of which could prove very useful in the analysis of point-primitive quadrangles.
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DTSTAMP;TZID=Australia/Sydney:20191107T132953
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191120T090000
DTEND;TZID=Australia/Sydney:20191120T170000
SUMMARY:CARMA Retreat
LOCATION:Noah's On the Beach
DESCRIPTION:CARMA Retreat\nNoah's On the Beach \n
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20190916T132555
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191122T160000
DTEND;TZID=Australia/Sydney:20191122T170000
SUMMARY:CARMA Seminar\n "Optimization Methods for Inverse Problems from Imaging"\n Prof Ke Chen
LOCATION:SR202, SR Building
DESCRIPTION:CARMA Seminar\nSR202, SR Building\n"Optimization Methods for Inverse Problems from Imaging"\nProf Ke Chen\n\nAbstract:\nOptimization is often viewed as an active and yet mature research field. However the recent and rapid development in the emerging field of Imaging Sciences has provided a very rich source of new problems as well as big challenges for optimization. Such problems having typically non-smooth and non-convex functionals demand urgent and major improvements on traditional solution methods suitable for convex and differentiable functionals.\n\nThis talk presents a limited review of a set of Imaging Models which are investigated by the Liverpool group as well as other groups, out of the huge literature of related works. We start with image restoration models regularised by the total variation and high order regularizers. We then show some results from image registration to align a pair of images which may be in single-modality or multimodality with the latter very much non-trivial. Next we review the variational models for image segmentation. Finally we show some recent attempts to extend our image registration models from more traditional optimization to the Deep Learning framework.\n\nJoint work with recent and current collaborators including D P Zhang, A Theljani, M Roberts, J P Zhang, A Jumaat, T Thompson.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191024T095024
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191125T160000
DTEND;TZID=Australia/Sydney:20191125T170000
SUMMARY:Mahler Lecture\n "Transcendence and dynamics"\n Dr Holly Krieger
LOCATION:LSTH, Life Sciences Lecture Theatre
DESCRIPTION:Mahler Lecture\nLSTH, Life Sciences Lecture Theatre\n"Transcendence and dynamics"\nDr Holly Krieger\n\nAbstract:\nMany interesting objects in the study of the dynamics of complex algebraic varieties are known or conjectured to be transcendental, such as the uniformizing map describing the (complement of a) Julia set, or the Feigenbaum constant. We will discuss various connections between transcendence theory and complex dynamics, focusing on recent developments using transcendence theory to describe the intersection of orbits in algebraic varieties, and the realization of transcendental numbers as measures of dynamical complexity for certain families of maps.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20191023T150550
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20191208T090000
DTEND;TZID=Australia/Sydney:20191212T170000
SUMMARY:CARMA Workshop "Data Science Down-Under"
LOCATION:Fort Scratchley Function Centre
DESCRIPTION:CARMA Workshop\nFort Scratchley Function Centre\nData Science Down-Under\n\nFor more information, please visit the workshop webpage.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20190311T112220
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20200128T090000
DTEND;TZID=Australia/Sydney:20200201T170000
SUMMARY:CARMA Workshop "Mathematics in Industry Study Group 2020"
LOCATION:NewSpace
DESCRIPTION:CARMA Workshop\nNewSpace\nMathematics in Industry Study Group 2020\n\nVisit the MISG website for more information.
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SEQUENCE:0
DTSTAMP;TZID=Australia/Sydney:20190325T160820
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