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TZOFFSETFROM:-0500
TZOFFSETTO:-0400
DTSTART:20260308T070000
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TZOFFSETFROM:-0400
TZOFFSETTO:-0500
DTSTART:20251102T060000
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BEGIN:VEVENT
UID:6a59f472e86b9
DTSTART;TZID=America/Toronto:20260722T153000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260722T170000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-benoit-charbonneau
SUMMARY:Differential Geometry Working Seminar | Benoit Charbonneau | The Di
 rac\noperator on homogeneous manifolds
CLASS:PUBLIC
DESCRIPTION:BENOIT CHARBONNEAU\, UNIVERSITY OF WATERLOO\n\n_The Dirac opera
 tor on homogeneous manifolds_\n\nMC 5417
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472ec4d2
DTSTART;TZID=America/Toronto:20260723T133000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260723T150000
URL:https://uwaterloo.ca/pure-mathematics/events/computability-learning-sem
 inar-joey-lakerdas-gayle-dominant
SUMMARY:Computability Learning Seminar | Joey Lakerdas-Gayle | Dominant\nfu
 nctions and high sets
CLASS:PUBLIC
DESCRIPTION:JOEY LAKERDAS-GAYLE\, UNIVERSITY OF WATERLOO\n\n_Dominant funct
 ions and high sets_\n\nWe prove Martin's theorem that \\(A'\\geq_T\\empty
 set''\\) if and only if\n$A$ computes a function that bounds every total c
 omputable function\nalmost everywhere. Then we will begin discussing the i
 nfinite injury\npriority tree construction of Sacks' theorem that there ex
 ists a high\nincomplete c.e. set.\n\nMC 5403
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472ed284
DTSTART;TZID=America/Toronto:20260722T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260722T153000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-facundo-camano
SUMMARY:Differential Geometry Working Seminar | Facundo Camano | Classifyin
 g\nALF Gravitational Instantons of Cyclic Type
CLASS:PUBLIC
DESCRIPTION:FACUNDO CAMANO\, UNIVERSITY OF WATERLOO\n\n_Classifying ALF Gra
 vitational Instantons of Cyclic Type_\n\nI will go over the paper ”Rigid
 ity for Multi-Taub-NUT Metrics” by\nVincent Minerbe.\n\nMC 5417
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472edff5
DTSTART;TZID=America/Toronto:20260715T153000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260715T170000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-alexander-teeter
SUMMARY:Differential Geometry Working Seminar | Alexander Teeter |\nFreedma
 n’s Results and Donaldson’s Exclusions: Classification of\n4-manifolds
  by intersection forms
CLASS:PUBLIC
DESCRIPTION:ALEXANDER TEETER\, UNIVERSITY OF WATERLOO\n\n_Freedman’s Resu
 lts and Donaldson’s Exclusions: Classification of\n4-manifolds by inters
 ection forms_\n\nWe look at Serre's algebraic classification of symmetric 
 integral\nunimodular forms\, and then Freedman's topological classificatio
 n of\ntopological 4-manifolds by their intersection forms. After\, we take
  a\nturn to looking at Donaldson's exclusions\, finding that smooth\n4-man
 ifolds are not as well behaved. Time permitting\, we will see how\nDonalds
 on's exclusions naturally lead to the existence of exotic\n\\(\\mathbb{R}^
 4\\)s.\n\nMC 5417
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472eee3e
DTSTART;TZID=America/Toronto:20260715T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260715T153000
URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-spencer-kelly-sobolev
SUMMARY:Differential Geometry Working Seminar | Spencer Kelly | The Sobolev
 \nEmbedding Theorem and The Berger-Ebin Decomposition Theorem
CLASS:PUBLIC
DESCRIPTION:SPENCER KELLY\, UNIVERSITY OF WATERLOO\n\n_The Sobolev Embeddin
 g Theorem and The Berger-Ebin Decomposition\nTheorem_\n\nServing as a part
  two of my previous talk\, in this talk we will begin\nwith briefly talkin
 g about the Sobolev Embedding Theorem for\n\\(L^2\\)-based Sobolev spaces.
  We will then move on to deriving the\nBerger-Ebin decomposition theorem f
 or differential operators with\ninjective symbol.\n\nMC 5417
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472ef974
DTSTART;TZID=America/Toronto:20260716T110000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260716T120000
URL:https://uwaterloo.ca/pure-mathematics/events/geometry-and-topology-semi
 nar-mainak-poddar-equivaraint
SUMMARY:Geometry and Topology Seminar | Mainak Poddar | Equivaraint princip
 al\nbundles over toric DM stacks
CLASS:PUBLIC
DESCRIPTION:MAINAK PODDAR\, IISER PUNE\n\n_Equivaraint principal bundles o
 ver toric DM stacks_\n\nWe extend the classification of torus equivariant 
 framed principal\nbundles over toric varieties using Tits buildings by Kav
 eh\, Mannon\,\nand Huang to such bundles over toric Deligne-Mumford stacks
 . A\ncorollary is that any such bundle over a stacky projective line\nspli
 ts. This is a joint work with Chandranandan Gangopadhyay and\nRamandeep Si
 ngh Arora.\n\nMC 5479
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472f0751
DTSTART;TZID=America/Toronto:20260716T133000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260716T150000
URL:https://uwaterloo.ca/pure-mathematics/events/computability-learning-sem
 inar-beining-mu-degree
SUMMARY:Computability Learning Seminar | Beining Mu | Degree of categoricit
 y\nand treeable degrees
CLASS:PUBLIC
DESCRIPTION:BEINING MU\, UNIVERSITY OF WATERLOO\n\n_Degree of categoricity 
 and treeable degrees_\n\nIn this seminar\, we will discuss treeable degree
 s and degree of\ncategoricity. We will introduce past results on which deg
 rees can or\ncannot be a degree of categoricity and when degrees of catego
 ricity\ncoincide with treeable degrees. We will also introduce a notion\no
 f \\(\\Pi^0_1\\) singletons as an example of treeable degrees and their\n
 relation to degree of categoricity.\n\nMC 5403
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472f15da
DTSTART;TZID=America/Toronto:20260717T113000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260717T123000
URL:https://uwaterloo.ca/pure-mathematics/events/ergodic-theory-learning-se
 minar-julius-frizzell-factors
SUMMARY:Ergodic Theory Learning Seminar | Julius Frizzell | Factors of Meas
 ure\nPreserving Systems
CLASS:PUBLIC
DESCRIPTION:JULIUS FRIZZELL\, UNIVERSITY OF WATERLOO\n\n_Factors of Measure
  Preserving Systems_\n\nWe will discuss the basic idea of homomorphisms of
  measure spaces and\nmeasure preserving systems and what it means for a me
 asure preserving\nsystem to be a factor of another measure preserving syst
 em.\n\nMC 5417
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472f2480
DTSTART;TZID=America/Toronto:20260716T110000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260716T120000
URL:https://uwaterloo.ca/pure-mathematics/events/algebraic-geometry-working
 -seminar-jack-jia-complex-rank
SUMMARY:Algebraic Geometry Working Seminar | Jack Jia | Complex Rank Analog
 s\nof Representation Categories
CLASS:PUBLIC
DESCRIPTION:JACK JIA\, UNIVERSITY OF WATERLOO\n\n_Complex Rank Analogs of R
 epresentation Categories_\n\nCategories of representations of groups are w
 ell-behaved: They are\nabelian (behave like module categories)\, symmetric
  monoidal (have\ntensor products)\, every object has a dual and is semi-si
 mple\, to name\na few. A natural question to ask is whether every category
  that\nexhibits similar behaviour is a representation category. Deligne\np
 roved a remarkable theorem that shows every symmetric tensor category\nwit
 h some imposed growth condition is in fact a category of\nrepresentations.
  Moreover\, he constructed some symmetric tensor\ncategories with faster-t
 han-exponential growth-these are so-called\nDeligne categories\, which can
  be interpreted as complex rank analogs\nof classical representation categ
 ories. In this talk\, I will introduce\nthe notion of symmetric tensor cat
 egories\, state Deligne's Theorem\,\nand construct some of the Deligne cat
 egories. \n\nMC 5403
DTSTAMP:20260717T092258Z
END:VEVENT
BEGIN:VEVENT
UID:6a59f472f314c
DTSTART;TZID=America/Toronto:20260715T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260715T150000
URL:https://uwaterloo.ca/pure-mathematics/events/special-number-theory-semi
 nar-quang-khai-nguyen-generating
SUMMARY:Special Number Theory Seminar | Quang-Khai Nguyen | Generating Seri
 es\nin Algebraic Dynamics
CLASS:PUBLIC
DESCRIPTION:QUANG-KHAI NGUYEN\, UNIVERSITE DE LYON\n\n_Generating Series in
  Algebraic Dynamics_\n\nIn this talk\, we will discuss the generating seri
 es associated with a\nself-map of a projective variety. This series is imp
 ortant in\nunderstanding the dynamical degree and plays an important role 
 in the\nrecent construction of the transcendental dynamical degree by Bell
 \,\nDiller\, and Jonsson. This talk will focus on some analytic and\nalgeb
 raic properties of such a series. It turns out that in some\ncases\, ratio
 nality is rather the exception.\n\nMC 5403
DTSTAMP:20260717T092258Z
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