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seminars:alge [2019/03/08 11:47]
tongviet
seminars:alge [2020/03/31 09:59] (current)
alex
Line 1: Line 1:
 +~~META:​title=Algebra Seminar~~
  
 +<WRAP center box 68%>
 +[[http://​www-history.mcs.st-and.ac.uk/​Biographies/​Galois.html|{{http://​www.win.tue.nl/​~aeb/​at/​mathematicians/​galois1.jpg?​110*135 |Evariste Galois}}]] ​  [[ http://​www-history.mcs.st-and.ac.uk/​Mathematicians/​Noether_Emmy.html|{{ http://​seminars.math.binghamton.edu/​AlgebraSem/​emmy_noether.jpg?​110*135|Emmy Noether}}]]
 +\\  \\
 + <​WRAP centeralign>​
 +**#####The Algebra Seminar#####​**
 +</​WRAP></​WRAP>​
 +
 +Unless stated otherwise, the seminar meets Tuesdays in room WH-100E at 2:50 p.m. There will be refreshments served at 4:00 in room WH-102.
 +
 +Organizers: [[:​people:​alex:​start|Alex Feingold]] and [[:​people:​tongviet:​start|Hung Tong-Viet]]
 +
 +To receive announcements of seminar talks by email, please join the seminar'​s [[http://​www1.math.binghamton.edu/​mailman/​listinfo/​algsem|mailing list]].
 +
 +
 +----
 +
 +=====Spring 2020=====
 +
 +
 +   * **January 21**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​No Algebra Seminar Meeting</​span></​html>​ \\         ​\\ ​ <WRAP center box 90%> Please think about giving a talk in the Algebra Seminar, or inviting an outside speaker.
 +</​WRAP>​
 +
 +
 +
 +   * **January 28**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Organizational Meeting</​span></​html>​ \\      \\ 
 +
 +
 +
 +   * **February 4**\\  <​html>​ <span style="​color:​blue;​font-size:​120%">​Casey Donoven (Binghamton University) </​span></​html>​ \\      **//​Thompson'​s Group V is 3/​2-Generated//​** \\   ​\\ ​ <WRAP center box 90%> **//​Abstract//​**:​ Every finite simple group can be generated by two elements and furthermore,​ every nontrivial element is contained in a generating pair. Groups with this property are said to be 3/​2-generated. Thompson’s group V, a finitely presented infinite simple group, is one of a small number of examples of infinite noncyclic 3/​2-generated groups. I will present a constructive proof of this fact and mention extensions of this theorem to generalizations of V.
 +</​WRAP>​
 +
 +   * **February 11**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​ Cancelled </​span></​html>​ \\      **////** \\     ​\\  ​
 +
 +
 +   * **February 18**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Eran Crockett (Binghamton University) </​span></​html>​ \\      **//​Universal algebra and constraint satisfaction problems//​** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ Constraint satisfaction problems (CSPs) form a class of
 +combinatorial decision problems generalizing graph colorability and
 +Boolean satisfiability. In this expository talk, I will explain how ideas
 +from universal algebra have been instrumental in classifying the
 +computational complexity of CSPs.
 +</​WRAP>​
 +
 +   * **February 25**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Fikreab Solomon Admasu (Binghamton University) </​span></​html>​ \\      **// Subgroups of the integer lattice $\mathbb{Z}^d$ and the higher rank discrete Heisenberg groups//** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ A sublattice $L$ of the integer lattice $\mathbb{Z}^d$ is called co-cyclic when the quotient $\mathbb{Z}^d/​L$ is a cyclic group. Approximately $85\%$ of sublattices of finite index in $\mathbb{Z}^d$ are co-cyclic. This can be proven by either counting solutions to linear congruence equations or using zeta function methods. We show a similar result holds for subgroups of the discrete Heisenberg groups $H_{2d+1}.$ ​
 +</​WRAP>​
 +
 +   * **March 3**\\  <​html>​ <span style="​color:​blue;​font-size:​120%">​Matt Evans (Binghamton University) </​span></​html>​ \\      **//Some recent results for spectra of commutative BCK-algebras//​** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ BCK-algebras are the algebraic semantics of a non-classical logic. Like for commutative rings,
 +there is a notion of a prime ideal in these algebras, and the set of prime ideals is a topological
 +space called the spectrum. By work of Stone (and later, Priestley), there is a close connection
 +between these spectra and distributive lattices with 0.
 +
 +In this talk I will discuss some recent results on the interplay between commutative BCK-algebras,​
 +their spectra, and distributive lattices.
 +</​WRAP>​
 +
 +   * **March 10**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​ Aparna Upadhyay (University at Buffalo) </​span></​html>​ \\      **//The Benson-Symonds Invariant//​** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ Let $M$ be a finite dimensional $kG$-module for a finite group $G$ over a field $k$ of characteristic $p$. In a recent paper Dave Benson and Peter Symonds defined a new invariant ​
 +$\gamma_G(M).$ This invariant measures the non-projective proportion of the
 +module $M$. In this talk, we will see some interesting properties of this invariant.
 +We will then determine this invariant for permutation modules of the symmetric
 +group corresponding to two-part partitions and present a combinatorial formula for
 +the same using tools from representation theory and combinatorics.
 +</​WRAP>​
 +
 +   * **March 17**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Cancelled</​span></​html>​ \\  ​
 +
 +   * **March 24**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Cancelled</​span></​html>​ \\  ​
 +
 +   * **March 31**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Cancelled</​span></​html>​ \\  ​
 +
 +   * **April 7**\\  <​html>​ <span style="​color:​blue;​font-size:​120%">​Spring vacation </​span></​html>​ \\  ​
 +
 +   * **April 14**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Cancelled</​span></​html>​ \\  ​
 +
 +   * **April 21**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​David Biddle (Binghamton University) </​span></​html>​ \\      **//​Title//​** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ Abstract
 +</​WRAP>​
 +
 +
 +   * **April 28**\\ ​ <​html>​ <span style="​color:​blue;​font-size:​120%">​Jonathan Doane (Binghamton University) </​span></​html>​ \\      **//​Title//​** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ Abstract
 +</​WRAP>​
 +
 +   * **May 5**\\  <​html>​ <span style="​color:​blue;​font-size:​120%">​Zachary Costanzo (Binghamton University) </​span></​html>​ \\      **//​Title//​** \\    \\  <WRAP center box 90%> **//​Abstract//​**:​ Abstract
 +</​WRAP>​
 +
 +
 +----
 +----
 +  * [[http://​seminars.math.binghamton.edu/​AlgebraSem/​index.html|Pre-2014 semesters]]\\
 +  * [[seminars:​alge:​fall2014]]
 +  * [[seminars:​alge:​spring2015]]
 +  * [[seminars:​alge:​alge_fall2015]]
 +  * [[seminars:​alge:​alge-spring2016]]
 +  * [[seminars:​alge:​alge-fall2016]]  ​
 +  * [[seminars:​alge:​alge-Spring2017|Spring 2017]]
 +  * [[seminars:​alge:​alge-Fall2017|Fall 2017]]
 +  * [[seminars:​alge:​alge-Spring2018|Spring 2018]]
 +  * [[seminars:​alge:​alge-Fall2018|Fall 2018]]
 +  * [[seminars:​alge:​alge-Spring2019|Spring 2019]]
 +  * [[seminars:​alge:​alge-fall2019|Fall 2019]]
 +
 +<​html>​
 +<iframe src="​https://​calendar.google.com/​calendar/​embed?​src=binghamton.edu_t4i68o16in9e0n2rq4e5lufk90%40group.calendar.google.com&​ctz=America/​New_York"​ style="​border:​ 0" width="​800"​ height="​600"​ frameborder="​0"​ scrolling="​no"></​iframe>​
 +</​html>​
seminars/alge.txt · Last modified: 2020/03/31 09:59 by alex