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DTSTART:20260308T070000
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TZOFFSETFROM:-0400
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DTSTART:20251102T060000
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BEGIN:VEVENT
UID:6a1082b9e7786
DTSTART;TZID=America/Toronto:20260529T113000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260529T123000
URL:https://uwaterloo.ca/pure-mathematics/events/ergodic-theory-learning-se
 minar-1
SUMMARY:Ergodic Theory Learning Seminar
CLASS:PUBLIC
DESCRIPTION:JULIUS FRIZZELL\, UNIVERSITY OF WATERLOO\n\n_Multiple recurrenc
 e for weakly-mixing transformations._\n\nWe will cover some basic facts ab
 out weakly mixing transformations and\nwork towards proving a version of t
 he multiple recurrence theorem for\nmeasure-preserving systems with all of
  the transformations being\nweakly mixing.\n\nMC 5417
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9e875b
DTSTART;TZID=America/Toronto:20260528T110000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260528T120000
URL:https://uwaterloo.ca/pure-mathematics/events/algebraic-geometry-working
 -seminar-101
SUMMARY:Algebraic Geometry Working Seminar
CLASS:PUBLIC
DESCRIPTION:ANNE JOHNSON\, UNIVERSITY OF WATERLOO\n\n_Twisted arcs on root 
 stacks_\n\nWe briefly introduce the theory of stacks via the stack of tria
 ngles\nusing Kai Behrend’s exposition as a guide. We move on to Yasuda
 ’s\nnotion of the twisted arc space of a DM stack. As time permits\, we\
 ntake up the special case of twisted arcs on a root stack.\n\nMC 5403
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9e8fe8
DTSTART;TZID=America/Toronto:20260528T133000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260528T150000
URL:https://uwaterloo.ca/pure-mathematics/events/computability-learning-sem
 inar-170
SUMMARY:Computability Learning Seminar
CLASS:PUBLIC
DESCRIPTION:BARBARA CSIMA\, UNIVERSITY OF WATERLOO\n\n_Priority Arguments i
 n Computability Theory_\n\nThis term\, Computability Learning Seminar will
  focus on Priority\nArguments. Priority Arguments are a common proof techn
 ique used in\nComputability Theory. A theorem is broken down to being equi
 valent to\na list of requirements. These requirements are given a priority
  order\,\nand a strategy is devised to meet all the requirements\, making 
 use of\nthe priority order. In the early days of the subject\, a big quest
 ion\n(Post’s Problem -1944) was whether there were any non-computable\nc
 omputably enumerable (c.e.) sets that were not Turing equivalent to\nthe h
 alting set. The solution\, from Friedberg (1957) and Muchnik\n(1956)\, was
  to construct a pair of Turing incomparable c.e. sets\,\nusing a finite in
 jury priority argument. In this first talk\, we will\nbegin our examinatio
 n of priority arguments by going through the proof\nof this theorem\, intr
 oducing definitions and reviewing notions from\nComputability Theory as ne
 eded along the way.\n\nMC 5403
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9e9660
DTSTART;TZID=America/Toronto:20260527T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260527T153000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-190
SUMMARY:Differential Geometry Working Seminar
CLASS:PUBLIC
DESCRIPTION:SPENCER KELLY\, UNIVERSITY OF WATERLOO\n\n_Sobolev Spaces Over 
 Compact Manifolds_\n\nThe space of smooth sections of a vector bundle over
  a manifold is an\ninfinite dimensional Fréchet Space\, and thus many of 
 the tools used\nin finite-dimensional geometry are rendered useless on thi
 s space.\nHowever\, taking the completion of this space with respect to th
 e\nSobolev norm\, we obtain a Banach space. What's even better is that in\
 nthe $L^2$ case we obtain a Hilbert space. In this talk we will walk\nthro
 ugh different constructions of the$L^2$-Sobolev spaces of sections\nof a v
 ector bundle over a compact manifold\, and discuss the Sobolev\nembedding 
 theorem. We will also work through some of the properties of\ndifferential
  operators on this space and\, time permitting\, we will\nfinish with the 
 Berger-Ebin decomposition for differential operators\nwith injective symbo
 l.\n\nMC 5417
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9e9e72
DTSTART;TZID=America/Toronto:20260522T113000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260522T123000
URL:https://uwaterloo.ca/pure-mathematics/events/ergodic-theory-learning-se
 minar-0
SUMMARY:Ergodic Theory Learning Seminar
CLASS:PUBLIC
DESCRIPTION:JULIUS FRIZZELL\, UNIVERSITY OF WATERLOO\n\n_Szemerédi's Theor
 em and Multiple Recurrence_\n\nWe will cover Szemerédi's Theorem and its 
 equivalence to\nFurstenberg's multiple recurrence theorem\, we will then b
 egin to look\nat weak-mixing transformations in more detail.\n\nMC 5417
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9ea67b
DTSTART;TZID=America/Toronto:20260520T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260520T153000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-189
SUMMARY:Differential Geometry Working Seminar
CLASS:PUBLIC
DESCRIPTION:BENOIT CHARBONNEAU\, UNIVERSITY OF WATERLOO\n\n_Some homogeneou
 s geometry on the manifold of full flags_\n\nI will be using the manifold 
 of full flags of complex three-space\n(seen as the quotient of $\\mathrm{S
 U(3)}$ byits torus) to illustrate\nhow much geometry one can do with homog
 enous objects.\n\nMC 5417
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9eae0f
DTSTART;TZID=America/Toronto:20260520T153000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260520T170000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-188
SUMMARY:Differential Geometry Working Seminar
CLASS:PUBLIC
DESCRIPTION:FACUNDO CAMANO\, UNIVERSITY OF WATERLOO\n\n_Boundary Conditions
  for Non-Euclidean Monopoles_\n\nIn this talk\, I will discuss the heurist
 ic behind defining asymptotics\nfor monopoles. Specifically\, the asymptot
 icsshould be abelian\nsolutions embedded into the gauge group. I will firs
 t go over this\nheuristic for Euclideanmonopoles and then move on to non-E
 uclidean\nsituations such as hyperbolic and singly periodic.\n\nMC 5417
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9eb59a
DTSTART;TZID=America/Toronto:20260522T153000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260522T170000
URL:https://uwaterloo.ca/pure-mathematics/events/pure-math-graduate-student
 -colloquia
SUMMARY:Pure Math Graduate Student Colloquia
CLASS:PUBLIC
DESCRIPTION:BORIS LI\, UNIVERSITY OF WATERLOO\, PURE MATHEMATICS\n\n_On the
  physics of bells_\n\nWe shall discuss the acoustics and resonance of bell
 s from the\nperspective of physics. After a short review ofnormal modes in
  musical\ninstruments\, we shall compare bells with one-dimensional system
 s such\nas strings andwinds. In contrast to these systems\, bells exhibit\
 nstrongly inharmonic partials due to its curved geometry. Wediscuss\nsome 
 consequences of this structure\, including some prominent partials\nand th
 e psychoacousticphenomenon of the strike note. Time permitting\,\nwe shall
  examine how bell geometry and thickness profilesaffect\ntuning.\n\nRefres
 hments at 3:30pm. Talk starts at 4:00pm.\n\nMC 5403
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9ebd71
DTSTART;TZID=America/Toronto:20260515T113000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260515T123000
URL:https://uwaterloo.ca/pure-mathematics/events/ergodic-theory-learning-se
 minar
SUMMARY:Ergodic Theory Learning Seminar
CLASS:PUBLIC
DESCRIPTION:JULIUS FRIZZELL\, University of Waterloo\n\n_A Quick Introducti
 on to Ergodic Theory_\n\nI will introduce the basic definitions and theore
 ms (without proof) of\nergodic theory that are needed to discuss Furstenbe
 rg's multiple\nrecurrence theorem. The development will follow that in Cha
 pter 1 of\n\"An Introduction to Ergodic Theory\" by Peter Walters and Chap
 ter 3 of\n\"Multiple Recurrence in Ergodic Theory and Combinatorial Number
 \nTheory\" by Harry Furstenberg. Time allowing\, I will also cover the\nst
 atement of the Multiple recurrence theorem itself and its\nrelationship to
  Szemerédi's theorem.\n\nMC 5417
DTSTAMP:20260522T162217Z
END:VEVENT
BEGIN:VEVENT
UID:6a1082b9ec596
DTSTART;TZID=America/Toronto:20260514T110000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260514T120000
URL:https://uwaterloo.ca/pure-mathematics/events/algebraic-geometry-working
 -seminar-100
SUMMARY:Algebraic Geometry Working Seminar
CLASS:PUBLIC
DESCRIPTION:KALEB RUSCITTI\, University of Waterloo\n\n_Building Kronecker 
 Moduli Spaces_\n\nKronecker moduli spaces are quiver moduli spaces and a g
 eneralization\nof Grassmannians. They parameterize n-tuples of matrices be
 tween two\nvector spaces\, up to change of basis on both sides. In this se
 minar\, I\nwill describe how to construct them as GIT quotients and what\n
 properties we can prove about them from this construction.\n\nMC 5417
DTSTAMP:20260522T162217Z
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