Difference between revisions of "SIAM Student Chapter Seminar"

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__NOTOC__
 
__NOTOC__
  
 
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*'''When:''' Most Friday at 11:30am
 
 
*'''When:''' Every Other Wednesday at 2:00 pm (except as otherwise indicated)
 
 
*'''Where:''' 901 Van Vleck Hall
 
*'''Where:''' 901 Van Vleck Hall
*'''Organizers:''' [http://www.math.wisc.edu/~ke/ Ke Chen]  
+
*'''Organizers:''' [http://www.math.wisc.edu/~xshen/ Xiao Shen]
*'''To join the SIAM Chapter mailing list:''' email [join-siam-chapter@lists.wisc.edu] website.
+
*'''Faculty advisers:''' [http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault], [http://pages.cs.wisc.edu/~swright/ Steve Wright]  
 +
*'''To join the SIAM Chapter mailing list:''' email [join-siam-chapter@lists.wisc.edu].
  
 
<br>
 
<br>
  
 
+
== Fall 2019 ==
== Fall 2018 ==
 
  
 
{| cellpadding="8"
 
{| cellpadding="8"
Line 18: Line 16:
 
!align="left" | title
 
!align="left" | title
 
|-
 
|-
| Sept. 12
+
|Sept. 27, Oct. 4
|[http://www.math.wisc.edu/~ke/ Ke Chen] (Math)
+
|[http://www.math.wisc.edu/~xshen/ Xiao Shen] (Math)
|''[[#Sep 12: Ke Chen (Math)|Inverse Problem in Optical Tomography]]''
+
|''[[#Sep 27, Oct 4: Xiao Shen (Math)|The corner growth model]]''
 +
|-
 +
|-
 +
|Oct. 18
 +
|[https://scholar.google.com/citations?user=7cVl9IkAAAAJ&hl=en Bhumesh Kumar] (EE)
 +
|''[[#Oct 18: Bhumesh Kumar (EE)|Non-stationary Stochastic Approximation]]''
 +
|
 +
|-
 
|-
 
|-
 +
|Oct. 25
 +
|Max (Math)
 +
|''[[#Oct 25: Max (Math)|Coalescent with Recombination]]''
 
|
 
|
| Spet. 26  2:15PM
 
|[http://www.math.wisc.edu/~kehlert/ Kurt Ehlert] (Math)
 
|"[[#Sept 26: Kurt Ehlert (Math)|  TBA  ]]"
 
 
|-
 
|-
 +
|-
 +
|Nov. 8
 +
|Hongfei Chen (Math)
 +
|''[[#Nov 15: Hongfei Chen (Math)| Brownian swimmers in a channel]]''
 
|
 
|
| Oct. 10  
+
|-
|[ Zachary Hansen] (Math)
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|-
|"[[#Oct 10: Kurt Ehlert (Atmospheric and Oceanic Sciences)| TBA  ]]"
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|Dec. 10
 +
|[http://www.maths.manchester.ac.uk/~higham/ Nicholas J. Higham] (University of Manchester)
 +
|''[[#Dec 10: Nicholas J. Higham  (University of Manchester)|Scientific Writing]]''
 +
|-
 
|-
 
|-
 
|
 
|
 
|}
 
|}
  
 +
== Abstracts ==
  
== Abstract ==
+
=== Sep 27, Oct 4: Xiao Shen (Math) ===
 +
'''The corner growth model'''
  
=== Sep 12: Ke Chen (Math) ===
+
Imagine there is an arbitrary amount of donuts attached to the integer points of Z^2. The goal is to pick an optimal up-right path which allows you to eat as much donuts as possible along the way. We will look at some basic combinatorial observations, and how specific probability distribution would help us to study this model.
Inverse Problem in Optical Tomography
 
  
I will briefly talk about my researches on the inverse problems of radiative transfer equations, which is usually used as a model to describe the transport of neutrons or other particles in a certain media. Such inverse problems considers the following question: given the knowledge of multiple data collected at the boundary of the domain of interest, is it possible to reconstruct the optical property of the interior of media? In this talk, I will show you that stability of this problem is deteriorating as the Knudsen number is getter smaller. The talk will be introductory and anyone graduate is welcome to join us.
+
=== Oct 18: Bhumesh Kumar (EE) ===
 +
'''Non-stationary Stochastic Approximation'''
  
=== Sept 26: Kurt Ehlert (Math) ===
+
Abstract: Robbins–Monro pioneered a general framework for stochastic approximation to find roots of a function with just noisy evaluations.With applications in optimization, signal processing and control theory there is resurged interest in time-varying aka non-stationary functions. This works addresses that premise by providing explicit, all time, non-asymptotic tracking error bounds via Alekseev's nonlinear variations of constant formula.
TBD
 
  
TBD
+
Reference: https://arxiv.org/abs/1802.07759 (To appear in Mathematics of Control, Signals and Systems)
  
=== Oct 10: Kurt Ehlert (Atmospheric and Oceanic Sciences) ===
+
=== Oct 25: Max (Math) ===
TBD
+
'''Coalescent with Recombination'''
 +
 
 +
I will talk about the continuous time coalescent with mutation and recombination, with a focus on introducing key concepts related to genetic distance and evolutionary relatedness. The talk will be informal and accessible.
 +
 
 +
=== Nov 15: Hongfei Chen (Math) ===
 +
'''Brownian swimmers in a channel'''
 +
 
 +
Abstract: Shape matters! I will talk about how their shapes affect their mean reversal time.
 +
 
 +
=== Dec 10: Nicholas J. Higham (University of Manchester) ===
 +
'''Scientific Writing'''
 +
 
 +
I will discuss various aspects of scientific writing, including
 +
 
 +
• the craft of writing in general,
 +
 
 +
• aspects specific to mathematical writing,
 +
 
 +
• English Usage,
 +
 
 +
• workflow, and
 +
 
 +
• revising drafts and proofreading.
 +
 
 +
Plenty of examples and links to further information will be given. I will also discuss
 +
my experiences in preparing ''Handbook of Writing for the Mathematical Sciences'' (third
 +
edition, SIAM, 2020).
  
TBD
 
  
 
<br>
 
<br>
 +
 +
== Past Semesters ==
 +
*[[SIAM_Student_Chapter_Seminar/Fall2018|Fall 2018]]
 +
*[[SIAM_Student_Chapter_Seminar/Spring2017|Spring 2017]]
 +
*[[SIAM_Student_Chapter_Seminar/Fall2019|Fall 2019]]

Revision as of 14:17, 21 January 2020


  • When: Most Friday at 11:30am
  • Where: 901 Van Vleck Hall
  • Organizers: Xiao Shen
  • Faculty advisers: Jean-Luc Thiffeault, Steve Wright
  • To join the SIAM Chapter mailing list: email [join-siam-chapter@lists.wisc.edu].


Fall 2019

date speaker title
Sept. 27, Oct. 4 Xiao Shen (Math) The corner growth model
Oct. 18 Bhumesh Kumar (EE) Non-stationary Stochastic Approximation
Oct. 25 Max (Math) Coalescent with Recombination
Nov. 8 Hongfei Chen (Math) Brownian swimmers in a channel
Dec. 10 Nicholas J. Higham (University of Manchester) Scientific Writing

Abstracts

Sep 27, Oct 4: Xiao Shen (Math)

The corner growth model

Imagine there is an arbitrary amount of donuts attached to the integer points of Z^2. The goal is to pick an optimal up-right path which allows you to eat as much donuts as possible along the way. We will look at some basic combinatorial observations, and how specific probability distribution would help us to study this model.

Oct 18: Bhumesh Kumar (EE)

Non-stationary Stochastic Approximation

Abstract: Robbins–Monro pioneered a general framework for stochastic approximation to find roots of a function with just noisy evaluations.With applications in optimization, signal processing and control theory there is resurged interest in time-varying aka non-stationary functions. This works addresses that premise by providing explicit, all time, non-asymptotic tracking error bounds via Alekseev's nonlinear variations of constant formula.

Reference: https://arxiv.org/abs/1802.07759 (To appear in Mathematics of Control, Signals and Systems)

Oct 25: Max (Math)

Coalescent with Recombination

I will talk about the continuous time coalescent with mutation and recombination, with a focus on introducing key concepts related to genetic distance and evolutionary relatedness. The talk will be informal and accessible.

Nov 15: Hongfei Chen (Math)

Brownian swimmers in a channel

Abstract: Shape matters! I will talk about how their shapes affect their mean reversal time.

Dec 10: Nicholas J. Higham (University of Manchester)

Scientific Writing

I will discuss various aspects of scientific writing, including

• the craft of writing in general,

• aspects specific to mathematical writing,

• English Usage,

• workflow, and

• revising drafts and proofreading.

Plenty of examples and links to further information will be given. I will also discuss my experiences in preparing Handbook of Writing for the Mathematical Sciences (third edition, SIAM, 2020).



Past Semesters