台大學生機率演講公告

NTU Student Probability Seminar

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除了特別情況之外,這學期的演講安排在星期二下午 15:30 - 17:00,頻率為兩週一次,其他細節請見下面的演講公告。

The talks are scheduled fortnightly from 15:30 to 17:00 on Tuesdays, unless otherwise mentioned. Please see announcements for details.

Last passage percolation and GUE minors: Part III
person
張恒宇
calendar_month
2024 年 4 月 9 日星期二
Tuesday, April 9, 2024
schedule
15:30 - 17:00
meeting_room
國立台灣大學天文數學館 539 室
R539, Astro-Math Building, NTU
In this talk, we focus on the second part of the proof: the conditional distribution of GUE's spectrum. The main ideas are the uniform distribution for eigenvalues of Hermitian matrices conditional on an isotropic hyperplane, and the SU-invariance of GUE. Moreover, I will give some combinatoric results for LPP model under i.i.d. Bernoulli environment.
Last passage percolation and GUE minors: Part II
person
張恒宇
calendar_month
2024 年 3 月 26 日星期二
Tuesday, March 26, 2024
schedule
15:30 - 17:00
meeting_room
國立台灣大學天文數學館 539 室
R539, Astro-Math Building, NTU
In this talk, we focus on the first part of the proof: the combinatoric structure of LPP model. The essential key depends on the specific random environment of i.i.d. geometric distribution, which can be identified by the matrices with non-negative integer entries, and the RSK correspondence yields some exactly solvable formulas for LPP model.
Last passage percolation and GUE minors: Part I
person
張恒宇
calendar_month
2024 年 3 月 12 日星期二
Tuesday, March 12, 2024
schedule
15:30 - 17:00
meeting_room
國立台灣大學天文數學館 539 室
R539, Astro-Math Building, NTU
In 2001, Yuliy Baryshnikov [1] connected the limiting process of last passage percolation (LPP) model under any i.i.d. non-negative random environment and the eigenvalues of Gaussian unitary ensemble (GUE) minors. The proof can be divided to two parts: the combinatoric structure of LPP model and the conditional distribution of GUE's spectrum. In this talk, we introduce Baryshnikov's result and the combinatoric tool, Robinson-Schensted-Knuth (RSK) correspondence related to the LPP model.

[1] Y Baryshnikov. GUEs and queues. Probab. Theory Related Fields, 2001.
The Sherrington-Kirkpartrick model
person
周子涵
calendar_month
2023 年 11 月 7 日星期二
Tuesday, November 7, 2023
schedule
15:30 - 17:00
meeting_room
國立台灣大學天文數學館 539 室
R539, Astro-Math Building, NTU
In this talk, we unite the previously discussed concepts to finish the proof of the Parisi Formula.
The Sherrington-Kirkpartrick model
person
周子涵
calendar_month
2023 年 10 月 24 日星期二
Tuesday, October 24, 2023
schedule
15:30 - 17:00
meeting_room
國立台灣大學天文數學館 537 室
R537, Astro-Math Building, NTU
In this talk, we begin with Guerra's Replica Symmetry Breaking Interpolation, deriving the Parisi Formula as an upper bound on free energy in the thermodynamic limit. We then introduce the Aizenman-Sims-Starr scheme, which can provide matching lower bounds on free energy.
The Sherrington-Kirkpartrick model
person
周子涵
calendar_month
2023 年 10 月 6 日星期五
Friday, October 6, 2023
schedule
14:00 - 15:30
meeting_room
國立台灣大學天文數學館 537 室
R537, Astro-Math Building, NTU
We will proving the Ghirlanda-Guerra identities and the Talagrand positivity principle is this talk, following Chapter 3 of Panchenko's book.
The Sherrington-Kirkpartrick model
person
周子涵
calendar_month
2023 年 9 月 19 日星期二
Tuesday, September 19, 2023
schedule
15:30 - 17:00
meeting_room
國立台灣大學天文數學館 537 室
R537, Astro-Math Building, NTU
We will start proving the Parisi formula for mean field spin glasses, following Chapter 3 of Panchenko's book. Knowledge on the previous chapters is not necessary but will be helpful.

目前沒有演講公告。

There is currently no seminar announcement.

目前沒有演講公告。

There is currently no seminar announcement.