Institute for Pure & Applied Mathematics (IPAM)
Institute for Pure & Applied Mathematics (IPAM)
  • Видео 1 771
  • Просмотров 2 353 074
Sarah Brauner - Spectrum of random-to-random shuffling in the Hecke algebra - IPAM at UCLA
Recorded 18 April 2024. Sarah Brauner of the University of Quebec Montréal presents "Spectrum of random-to-random shuffling in the Hecke algebra" at IPAM's Integrability and Algebraic Combinatorics Workshop.
Abstract: "The eigenvalues of a Markov chain determine its mixing time. In this talk, I will describe a Markov chain called random-to-random shuffling whose eigenvalues have surprisingly elegant-though mysterious-formulas. In particular, these eigenvalues were shown to be non-negative integers by Dieker and Saliola in 2017, resolving an almost 20 year conjecture.
In recent work with Axelrod-Freed, Chiang, Commins and Lang, we generalize random-to-random shuffling to the (Type A) Hecke a...
Просмотров: 218

Видео

Michael Wheeler - A vertex model proof of a correspondence due to Imamura--Mucciconi--Sasamoto
Просмотров 272Месяц назад
Recorded 24 May 2024. Michael Wheeler of the University of Melbourne presents "A vertex model proof of a correspondence due to Imamura Mucciconi Sasamoto" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: The q-Whittaker polynomials are a one-parameter generalization of Schur polynomials, with many nice combinatorial properties. It has been known f...
Ivan Corwin - Scaling limit of colored ASEP - IPAM at UCLA
Просмотров 209Месяц назад
Recorded 24 May 2024. Ivan Corwin of Columbia University presents "Scaling limit of colored ASEP" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: Each site x in Z is initially occupied by a particle of color -x. Across each bond (x,x 1) particles swap places at rate 1 or q 1 depending on whether they are in reverse order (e.g. color 2 then 1) or ...
Richard Kenyon - On the higher-rank dimer model - IPAM at UCLA
Просмотров 145Месяц назад
Recorded 24 May 2024. Richard Kenyon of Yale University presents "On the higher-rank dimer model" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: On a planar bipartite graph with a GL(n) local system, we define an associated Kasteleyn operator and show that its determinant counts traces of “n-multiwebs”, which are combinatorial objects generalizi...
Daniel Remenik - Solving PNG - IPAM at UCLA
Просмотров 114Месяц назад
Recorded 24 May 2024. Daniel Remenik of the Universidad de Chile presents "Solving PNG" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: The polynuclear growth model (PNG) is a model for crystal growth in one dimension. It is one of the most basic models in the KPZ universality class, and in the droplet geometry it can be recast in terms of a Pois...
Jacopo Borga - On the geometry of uniform meandric systems - IPAM at UCLA
Просмотров 180Месяц назад
Recorded 23 May 2024. Jacopo Borga of Stanford University presents "On the geometry of uniform meandric systems" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: In 1912, Henri Poincaré asked the following simple question: “In how many different ways can a simple loop in the plane, called a meander, cross a line a specified number of times?” Despi...
Jeffrey Kuan - Universality of dynamic processes using Drinfel'd twisters - IPAM at UCLA
Просмотров 223Месяц назад
Recorded 23 May 2024. Jeffrey Kuan of Texas A&M University - College Station presents "Universality of dynamic processes using Drinfel'd twisters" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: The concept of 'universality' motivates a wide variety of probability and mathematical physics problems, going back to the classical central limit theore...
Harini Desiraju - Elliptic orthogonal polynomials and their integrability - IPAM at UCLA
Просмотров 175Месяц назад
Recorded 23 May 2024. Harini Desiraju of the Sydney Mathematical Research Institute, University of Sydney, presents "Elliptic orthogonal polynomials and their integrability" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: Elliptic orthogonal polynomials are a family of special functions that satisfy certain orthogonality condition with respect to...
Tomohiro Sasamoto - Skew RSK dynamics - IPAM at UCLA
Просмотров 112Месяц назад
Recorded 23 May 2024. Tomohiro Sasamoto of the Tokyo Institute of Technology presents "Skew RSK dynamics" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: In [1] we introduced the skew RSK dynamics, which is a time evolution for a pair of skew Young tableaux (P,Q). This gives a connection between the q-Whittaker measure and the periodic Schur meas...
Jesper Jacobsen - Exact three- and four-point correlation functions in O(n) and Potts loop models
Просмотров 120Месяц назад
Recorded 22 May 2024. Jesper Jacobsen of the École Normale Supérieure presents "Exact three- and four-point correlation functions in the O(n) and Potts loop models" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: We give an overview of our recent work on geometrically defined bulk correlators in two-dimensional conformally invariant loop models. ...
Istvan Prause - Limit shapes of non-intersecting Brownian bridges via harmonic envelope
Просмотров 76Месяц назад
Recorded 22 May 2024. Istvan Prause of the University of Eastern Finland presents "Limit shapes of non-intersecting Brownian bridges via harmonic envelope" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: Non-intersecting Brownian bridges develop macroscopic limit shapes under given initial and terminal particle distribution. An example for this i...
David Keating - Stochastic Box-Ball System - IPAM at UCLA
Просмотров 66Месяц назад
Recorded 22 May 2024. David Keating of the University of Wisconsin-Madison presents "Stochastic Box-Ball System" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: The box-ball system is a deterministic discrete-time dynamical system introduced by Takahashi and Satsuma. At each natural number suppose there is a box that can either hold a single ball...
Hugo Duminil Copin - Rotational invariance of planar random cluster models... and beyond?
Просмотров 295Месяц назад
Recorded 22 May 2024. Hugo Duminil-Copin of The University of Geneva presents "Rotational invariance of planar random cluster models... and beyond?" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: Several years ago, Grimmett and Manolescu introduced an innovative technique that proved instrumental in establishing the universality of critical expo...
Hugo Duminil-Copin - Critical phenomena through the lens of the Ising model - Green Family Lecture
Просмотров 384Месяц назад
Recorded 21 May 2024 at the Mong Auditorium. Hugo Duminil-Copin of the The University of Geneva presents "Critical phenomena through the lens of the Ising model" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: The Ising model is one of the most classical lattice models of statistical physics undergoing a phase transition. Initially imagined as a ...
Vadim Gorin - Six-vertex model in the rare corners regime - IPAM at UCLA
Просмотров 108Месяц назад
Recorded 21 May 2024. Vadim Gorin of the University of California, Berkeley, presents "Six-vertex model in the rare corners regime" at IPAM's Vertex Models: Algebraic and Probabilistic Aspects of Universality Workshop. Abstract: The limit shapes for the height function in the celebrated six-vertex model are still unknown in general situations. However, we recently found ways to compute them in ...
Promit Ghosal - Tail probabilities of the stochastic six vertex model - IPAM at UCLA
Просмотров 171Месяц назад
Promit Ghosal - Tail probabilities of the stochastic six vertex model - IPAM at UCLA
Wioletta Ruszel - Fermionic Gaussian free field and connections to random lattice models
Просмотров 144Месяц назад
Wioletta Ruszel - Fermionic Gaussian free field and connections to random lattice models
Sasha Garbali - Shuffle algebras, lattice paths and Macdonald functions - IPAM at UCLA
Просмотров 141Месяц назад
Sasha Garbali - Shuffle algebras, lattice paths and Macdonald functions - IPAM at UCLA
Philippe Di Francesco - Arctic curves for vertex models - IPAM at UCLA
Просмотров 101Месяц назад
Philippe Di Francesco - Arctic curves for vertex models - IPAM at UCLA
Leonid Petrov - Vertex model integrability for stochastic particle systems - IPAM at UCLA
Просмотров 206Месяц назад
Leonid Petrov - Vertex model integrability for stochastic particle systems - IPAM at UCLA
Marianna Russkikh - Perfect t-embedding of uniformly weighted hexagon - IPAM at UCLA
Просмотров 144Месяц назад
Marianna Russkikh - Perfect t-embedding of uniformly weighted hexagon - IPAM at UCLA
Filippo Colomo - Frozen boundaries and their fluctuations in the square-ice model - IPAM at UCLA
Просмотров 103Месяц назад
Filippo Colomo - Frozen boundaries and their fluctuations in the square-ice model - IPAM at UCLA
Alexei Borodinof - Geometry of dimer models - IPAM at UCLA
Просмотров 248Месяц назад
Alexei Borodinof - Geometry of dimer models - IPAM at UCLA
Christopher Hoffman - The density conjecture for activated random walk - IPAM at UCLA
Просмотров 182Месяц назад
Christopher Hoffman - The density conjecture for activated random walk - IPAM at UCLA
Robin Tucker-Drob - Radon-Nikodym topography of amenable equivalence relations in an acyclic graph
Просмотров 86Месяц назад
Robin Tucker-Drob - Radon-Nikodym topography of amenable equivalence relations in an acyclic graph
Omer Angel - Interacting Polya urns - IPAM at UCLA
Просмотров 186Месяц назад
Omer Angel - Interacting Polya urns - IPAM at UCLA
Reza Gheissari - Spectral gap estimates for the random field Ising model - IPAM at UCLA
Просмотров 157Месяц назад
Reza Gheissari - Spectral gap estimates for the random field Ising model - IPAM at UCLA
Catherine Wolfram - Dimers in 3D - IPAM at UCLA
Просмотров 218Месяц назад
Catherine Wolfram - Dimers in 3D - IPAM at UCLA
Lily Reeves - Distances in hierarchical percolation - IPAM at UCLA
Просмотров 685Месяц назад
Lily Reeves - Distances in hierarchical percolation - IPAM at UCLA
Ron Peled - Minimal Surfaces in Random Environment - IPAM at UCLA
Просмотров 162Месяц назад
Ron Peled - Minimal Surfaces in Random Environment - IPAM at UCLA

Комментарии

  • @guptayush179
    @guptayush179 20 часов назад

    Jewish women are fine women.

  • @user-qp2ps1bk3b
    @user-qp2ps1bk3b 22 часа назад

    interesting problems

  • @douglasaraujo9763
    @douglasaraujo9763 3 дня назад

    Love the laughs in this presentation! hehe

  • @vtrandal
    @vtrandal 4 дня назад

    @18:00 the speaker, Tom Goldstein is answering a questioin: Is this the whole error surface? His answer contains good news and bad news. It's good news insofar as it's pretty far relative to the weights involved, but it adding skip connections does not convert it to a convex optimization problem. At least that's what I get from the question and the answer.

  • @108_mk8
    @108_mk8 6 дней назад

    At 25:11, I think u(T) won't diverse as it is assumed that real part of eigenvalues are negative. Thus solution is bound to decay. [[Referring to eigenvalues mentioned in the problem description slide.]] I really liked the Childs style of explaining.

  • @user-qp2ps1bk3b
    @user-qp2ps1bk3b 12 дней назад

    Such a nice and inspirational talk!

  • @donnymcjonny6531
    @donnymcjonny6531 13 дней назад

    Fantastic! Exactly what I needed!

  • @vikramsinghthakur1456
    @vikramsinghthakur1456 26 дней назад

    how you calculate the local error at 6:44 3*15+1=16

  • @vikramsinghthakur1456
    @vikramsinghthakur1456 27 дней назад

    Sorry to say but the way of explanation is very poor, but the topic was very important for beginner.

  • @SeiduNasara
    @SeiduNasara 29 дней назад

    I want to join mathematics

  • @joe_hoeller_chicago
    @joe_hoeller_chicago Месяц назад

    Awesome presentation!

  • @brahimtonto7367
    @brahimtonto7367 Месяц назад

    Great Hugo

  • @markraya958
    @markraya958 Месяц назад

    Great talk Yuval! I have a question though about one part of the presentation. For proof idea 1, I'm not sure why the event that the d-rigidity closure of our random graph is 'small' is contained within the event that at most dn-((d+1) choose 2) of the r_i's are larger than alpha. The part I'm struggling to understand is the 'containment' of the former event in the latter. Any help would be appreciated. Thanks!

    • @IPAMUCLA
      @IPAMUCLA Месяц назад

      You should ask him directly. IPAM's speakers almost never go back and answer RUclips questions. Sorry. (RB)

    • @markraya958
      @markraya958 Месяц назад

      @@IPAMUCLA Oh no problem, thanks for letting me know RB. I'll send Yuval an email then. PS: I'm looking forward to giving my own talks at these events one day.

  • @java_Marcelo-xx5nw
    @java_Marcelo-xx5nw Месяц назад

    Thank you for share!

  • @mattikemppinen6750
    @mattikemppinen6750 Месяц назад

    A very interesting talk, thank you!

  • @MattGray_Chelsoph
    @MattGray_Chelsoph Месяц назад

    Fantastic presentation. Thanks Josh!

  • @lobocv64
    @lobocv64 Месяц назад

    Incredible presentation

  • @abedishah
    @abedishah Месяц назад

    Amazing lecture

  • @reywidodo
    @reywidodo Месяц назад

    thank you for give opencourse, this very useful for me cannot go to university.

  • @ankitkumarpandey7262
    @ankitkumarpandey7262 Месяц назад

    Absolute gem of a video!!

  • @k12914
    @k12914 Месяц назад

    Showing videos off medication followed by on medication is ridiculous. Can we not follow the basic rules of science please?

  • @rahyadworld2016
    @rahyadworld2016 Месяц назад

    That is great!

  • @kparag01
    @kparag01 Месяц назад

    Superb ❤

  • @rodrigofernandez9800
    @rodrigofernandez9800 Месяц назад

    Excelent performance, only that her accents is irritating

  • @hfkssadfrew
    @hfkssadfrew Месяц назад

    Why is it better than surrogate based optimization?

  • @star_lings
    @star_lings 2 месяца назад

    i love the exposition from water ice to a linear representation. makes the talk so much easier to bite into.

  • @JimThi
    @JimThi 2 месяца назад

    This subject is not easy for me, so thank you very much for these explanations.

  • @LukeGeaney
    @LukeGeaney 2 месяца назад

    I really enjoyed this, thanks for uploading it! Just to note, it was very hard to find this video! XD

  • @hugofontan589
    @hugofontan589 2 месяца назад

    Very interesting!

  • @myelinsheathxd
    @myelinsheathxd 2 месяца назад

    thx for explanation

  • @corecode4491
    @corecode4491 2 месяца назад

    Thank you for amazing lecture

  • @bahamutrgrg9582
    @bahamutrgrg9582 2 месяца назад

    So he says 1trln qubits but writes 1bln. Which one? Also, physical or logic qubits?

  • @merbst
    @merbst 2 месяца назад

    Coq, Lean, & Agdq are the holy trinity of Formal proof assistant!

  • @merbst
    @merbst 2 месяца назад

    Type coercion is much less cruel han any oyher type of coercion!

  • @merbst
    @merbst 2 месяца назад

    The West coast is tne one that I call home! "Invisible Mathematics that seems very valuable to me!

  • @user-hz4ld5zz1n
    @user-hz4ld5zz1n 2 месяца назад

    Thanks to the author for the excellent work. How to implement batch processing of neural NMF?

  • @AnderBRO2
    @AnderBRO2 2 месяца назад

    wiggle stereoscopy

  • @mahoneytechnologies657
    @mahoneytechnologies657 2 месяца назад

    This is a much better Focus for Science and Far More Important than spending money on Particle Physics, Dark Mater, Dark Energy or String Theory!

    • @crtnn
      @crtnn Месяц назад

      I wouldn't say that. Knowledge gained form advancements of these fields may also be of great use to us. We do gain technological advancements from a lot of knowledge generated there. Besides, unraveling the mysteries of the universe to get answers to fundamental human questions (Where do we come from, how was the universe created, what is life/consciousness, etc. etc.) is what drives our species since ancient times. Its why so many different religions and stuff was invented, because without answers these questions keep people awake at night. Not to forget that IF Penrose & Hameroff are actually right in with their presumptions in the Orch OR model, research in these fields could also immensly contribute to our understanding of consciousness.

  • @fedornilov6237
    @fedornilov6237 2 месяца назад

    Very interesting!

  • @Lallafef
    @Lallafef 2 месяца назад

    This woman doesn't know what she is talking about.

  • @star_lings
    @star_lings 2 месяца назад

    lmaoooo. (0,1) oh, (1,∞)? nbd. ℵ₁ = 2ᴺ◦ i love maths.

  • @zooching
    @zooching 3 месяца назад

    This talk slaps!

  • @Chooseyouruniquehandlebya
    @Chooseyouruniquehandlebya 3 месяца назад

    not a good lecture. what is the point of all of this? its like someone reciting a textbook outloud. giving a real lecture is something different, this is waste of time

  • @Sam-ry1xd
    @Sam-ry1xd 3 месяца назад

    cool 🏹

  • @dimitrispapageorgiou2711
    @dimitrispapageorgiou2711 3 месяца назад

    Amazing presentation! Congratulations!

  • @cyberwit
    @cyberwit 3 месяца назад

    Such an informative introduction to e3nn! Thank you. Tess!

  • @user-bj4ng5gi8e
    @user-bj4ng5gi8e 3 месяца назад

    how to use any arbitrary metric , which means how to write my metric and do the calculations

  • @AlgoNudger
    @AlgoNudger 3 месяца назад

    Thanks.

  • @user-mn8th3ie1t
    @user-mn8th3ie1t 3 месяца назад

    Where is the motivation for the Logistic regression ?

  • @AlgoNudger
    @AlgoNudger 3 месяца назад

    Thanks.