BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Reason 4.5//EN
X-WR-CALNAME;VALUE=TEXT:Mathematics and Statistics Events
X-WR-TIMEZONE:America/Chicago
BEGIN:VEVENT
UID:20100201131923-603775@carleton.edu
SUMMARY:Mathematics Colloquium
DESCRIPTION:Jenise Swall, a Statistician from the U.S. Environmental Prote
ction Agency, will be giving a talk on "Statistical Issues in the Assessme
nt of Air Quality Model Performance". This talk is being sponsored by the
Mathematics Department and ENTS Department.
LOCATION:CMC 206
URL:https://apps.carleton.edu/curricular/math/events/?event_id=603775
LAST-MODIFIED:20100428T134446
CREATED:20100201T131923
DTSTAMP:20200601T090152
DTSTART:20100506T160000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20101115131245-688686@carleton.edu
SUMMARY:Public Lecture by Francis Bonahon, Headley Distinguished Visitor-i
n-Residence
DESCRIPTION:Title: "Curvature: Mountain Passes and Summits, Soap Films, an
d the Internet". Francis Bonahon, Professor of Mathematics from USC, will
speak about how the mathematical idea of curvature of curves and surfaces
has recently found surprising application to seemingly unrelated areas. No
mathematical knowledge is needed for this talk. Francis Bonahon is a Head
ley Distinguished Visitor, sponsored by the Michael Morrill Fund, the Depa
rtment of Mathematics and Dean of the College.
LOCATION:Olin 149
URL:https://apps.carleton.edu/curricular/math/events/?event_id=688686
LAST-MODIFIED:20110124T100610
CREATED:20101115T131245
DTSTAMP:20200601T090152
DTSTART:20110126T190000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20120308090657-824875@carleton.edu
SUMMARY:Truth Values: One Girl's Romp Through M.I.T.'s Male Math Maze
DESCRIPTION:"Truth Values" is a one-woman show about being a professional
woman in a male-dominated field. Performed and written by Gioia De Cari.
LOCATION:Weitz Center for Creativity Theater
URL:https://apps.carleton.edu/curricular/math/events/?event_id=824875
LAST-MODIFIED:20120328T090716
CREATED:20120308T090657
DTSTAMP:20200601T090152
DTSTART:20120413T190000
DURATION:PT2H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20130923144052-1045972@carleton.edu
SUMMARY:The Frank G. and Jean M. Chesley Lectureship
DESCRIPTION:“Wild Beauty: Postcards from Mathematical Worlds,” by Professo
r James Propp
LOCATION:Olin 149
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1045972
LAST-MODIFIED:20190514T101151
CREATED:20130923T144052
DTSTAMP:20200601T090152
DTSTART:20131111T193000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20140318140257-1114483@carleton.edu
SUMMARY:Math Across the Cannon
DESCRIPTION:Our speaker this year is Joseph Silverman from Brown Universit
y.
LOCATION:Weitz Cinema
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1114483
LAST-MODIFIED:20140326T152804
CREATED:20140318T140257
DTSTAMP:20200601T090152
DTSTART:20140403T193000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20151112125421-1345998@carleton.edu
SUMMARY:Math Across the Cannon Talk
DESCRIPTION:Sarah Billey from the University of Washington will be giving
a talk.
LOCATION:Weitz Cinema
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1345998
LAST-MODIFIED:20160414T115924
CREATED:20151112T125421
DTSTAMP:20200601T090152
DTSTART:20160428T190000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20160816111422-1454013@carleton.edu
SUMMARY:Northfield Undergraduate Mathematics Symposium
DESCRIPTION:Each year Carleton and St. Olaf students work on a variety of
interesting research problems in mathematics, both here in Northfield and
around the country. Several of these students will be sharing the work th
ey did this past summer at the 2016 Northfield Undergraduate Mathematics S
ymposium. Please join us for as many of the talks as you can attend, as w
ell as for a pizza dinner. These talks all promise to be fascinating in t
heir own right, but each one also counts for half of the eight talks junio
r and senior math and math/stats majors need to attend to satisfy their le
cture attendance requirement. Below is a schedule for the symposium, foll
owed by the titles and abstracts for the talks.\nSchedule of Talks\n3:40 –
4:00 pm m-gapped Progressions and van der Waerden Numbers\n
Daniel Lewitz, Carleton College\n4:05 – 4:25 pm An Invo
lution Proof of a Borwein Theorem for Overpartitions\n
Conrad Parker and Melanie Stevenson, St. Olaf College\n4:30 – 4:5
0 pm A Combinatorial Model of Quantum Skew Symmetric Matrices\n
Eleanor Campbell, Carleton College\n4:55 – 5:15 pm P
artial Differential Modeling in the Kidney\n Qu
inton Neville, St. Olaf College\n5:20 – 5:55 pm Dinner (will be provided
)\n6:00 – 6:20 pm Finding Minimal Spanning Forests in a Graph\n
Abdel-Rahman Madkour and Philip Nadolny, St. Olaf Coll
ege\n6:25 – 6:45 pm The Metric s-t path Travelling Salesperson Problem a
nd the\n Randomized Christofides Algorithm\n
Shatian Wang, Carleton College\nTitles and Abst
racts\nTitle: m-gapped Progressions and van der Waerden Numbers\nSpeaker:
Daniel Lewitz, Carleton College\nAbstract: An m-gapped progression is a
generalization of an arithmetic progression in which the gaps in the prog
ression only need to belong to a set of $m$ elements, rather than all be t
he same. In the same way that arithmetic progressions pertain to the van d
er Waerden numbers, W(k; r), m-gapped progressions pertain to a function w
e call Bm(k; r). We will examine some results about the nature of the func
tion Bm(k; r), both in general and for special case when r = 2. In particu
lar, we will show how there are exact results for Bm(k; r) when k is relat
ively small. This work was done with Catherine Cooper, Trinity College; A
lex Stoll, Clemson University; and Bruce Landman, University of West Georg
ia.\nTitle: An Involution Proof of a Borwein Theorem for Overpartitions\n
Speakers: Conrad Parker and Melanie Stevenson, St. Olaf College\nAbstract
: In 1990, P. Borwein conjectured a + − − sign pattern for polynomials co
unting certain signed integer partitions. We conjecture a + − 0 pattern f
or the generating function for overpartitions into parts not divisible by
3 and give an involution-based proof of the 0 case of this conjecture usin
g pentagonal numbers and the Jacobi triple product. We also share a proof
of a generalization of this case involving quadratic nonresidues modulo a
prime.\nTitle: A Combinatorial Model of Quantum Skew Symmetric Matrices\
nSpeaker: Eleanor Campbell, Carleton College\nAbstract: The quantized co
ordinate ring of m × n Quantum matrices, or simply quantum matrices, holds
deep connections to the theory of totally nonnegative matrices, wave inte
ractions and knot theory. We examine the less understood theory of quantu
m skew-symmetric matrices Oq(Skn) over a field k. This algebra is known t
o be generated by a set of generators yi,j, 1 ≤ i < j ≤ n, which satisfy c
ertain commutativity relations dependent on some element q ∈ k. We view O
q(Skn) from a combinatorial perspective. We prove Oq(Skn) is isomorphic t
o an algebra called An over k, defined graphically. An is generated by el
ements xij, where each xij is the sum of the weights of paths from i to j
in a particular directed graph. The weights are obtained from elements of
a space with simpler commutativity relations dependent on q. Using induc
tive methods on the graph, we prove that the generators of An satisfy the
same commutativity relations of Oq(Skn), allowing for a new combinatorial
perspective that may be used to study this algebra. \nTitle: Partial Diff
erential Modeling in the Kidney\nSpeaker: Quinton Neville, St. Olaf Colle
ge\nAbstract: The kidney, a diverse and complicated biological system, is
most simply charged with the production of urine. At a deeper level, the
functional unit that facilitates this process is the nephron. The nephro
n utilizes the Tubuloglomerular Feedback (TGF) System to monitor chloride
levels during the production of urine, making sure the body is not retaini
ng or losing too much. In mammals, there are two types of nephrons: short
-looped and long-looped. The key difference between the short-loop and th
e long-loop is the existence of the Thin Ascending Limb (THAL) in the long
-loop, which has differing properties for spatially varying permeability a
nd maximum transport rate of chloride. Additionally, there is biological
evidence of an association between desert mammals' ability to produce more
highly concentrated urine and a higher percentage of long-looped nephrons
in their kidneys. The long-looped nephron, however, is not well characte
rized biologically, which provides motivation to attempt to explain this a
ssociation mathematically. Thus, we developed a partial differential mode
l of a long-looped nephron, derived a characteristic ordinary differential
equation, varied the length of the model THAL, and performed a bifurcatio
n analysis of the long-looped TGF system. Our analysis indicates that the
re is a higher tendency towards oscillatory solutions in the long-looped T
GF system than in the short-looped, and increasing the length of the THAL
may create a more stable TGF system. \nTitle: Finding Minimal Spanning Fo
rests in a Graph\nSpeakers: Abdel-Rahman Madkour and Philip Nadolny, St.
Olaf College\nAbstract: In the computation of multidimensional persistent
homology, a popular tool in topological data analysis, a family of planar
graphs arises. We have studied the problem of partitioning these graphs
in a way that will be useful for parallelizing the persistent homology cal
culation. Specifically, we desire to partition an edge-weighted, undirect
ed graph G into k connected components, G1, . . . , Gk. Let wi be the wei
ght of a minimum spanning tree in component Gi. For our purposes, an idea
l partition is one that minimizes max{w1,...,wk}. This problem is known t
o be NP-hard in the case of general graphs and we are unable to find this
specific problem in the graph partitioning literature. We propose two app
roximation algorithms, one that uses a dynamic programming strategy and on
e that uses a spectral clustering approach, that produce near-optimal part
itions in practice on a family of test graphs. We present detailed descri
ptions of these algorithms and the analysis of empirical performance data.
\nTitle: The Metric s-t path Travelling Salesperson Problem and the Rando
mized Christofides Algorithm\nSpeaker: Shatian Wang, Carleton College\nAb
stract: In the well-known metric Traveling Salesman Problem (metric TSP),
a complete graph G= (V, E) is given with nonnegative metric edge costs.
The goal is to find a Hamiltonian circuit in G with minimum cost. The Chr
istofides heuristic (1976) gives a nice purely combinatorial 1.5-approxima
tion algorithm for the metric TSP. An important variant of the metric TSP
is the metric s-t path TSP, in which two fixed vertices, s and t are give
n, and the goal is to find a min-cost Hamiltonian path from s to t. The C
hristofides heuristic can be easily extended to this s-t path variant, but
only with an approximation ratio of 5/3. An, Kleinberg and Shmoys (2012)
made the first improvement to 5/3 with an LP based algorithm, the randomi
zed Christofides algorithm, and achieved an approximation ratio of 1.618.
This LP based analysis has inspired a sequence of later breakthroughs, in
cluding an 1.6 bound by Sebo (2013) and an 1.566 bound by Gottschalk and V
ygen (2016). If time permits, a more general problem, the connected T-joi
n problem, will be discussed at the end of the talk.\n
LOCATION:CMC 206
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1454013
LAST-MODIFIED:20161013T113939
CREATED:20160816T111422
DTSTAMP:20200601T090152
DTSTART:20161013T154000
DURATION:PT3H20M0S
END:VEVENT
BEGIN:VEVENT
UID:20160916130955-1468601@carleton.edu
SUMMARY:Mathematics and Statistics Group Comps Presentations
DESCRIPTION:Title: The ABCs (and DEFGs) of Classifying Lie Algebras\nSpeak
ers: Daniel Lewitz, Sam McHugh, Eric Walker\nTime: 3:30 pm\nTitle: When co
unting primes gets complex — Sketch of an analytic proof of the Prime Numb
er Theorem\nSpeakers: Liyang Liu, Frank Yang\nTime: 4:30 pm\n
LOCATION:Olin 141
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1468601
LAST-MODIFIED:20170215T151915
CREATED:20160916T130955
DTSTAMP:20200601T090152
DTSTART:20170221T153000
DURATION:PT2H30M0S
END:VEVENT
BEGIN:VEVENT
UID:20160916131147-1468605@carleton.edu
SUMMARY:Mathematics and Statistics Group Comps Presentations
DESCRIPTION:Title: Spatial Statistics\nSpeakers: Jeremy Pang, Mitchell Bie
wen, Jonathan Forsander, Junxiong Liu\nTime: 3:30 pm\nTitle: Exploring Dis
crete Neuronal Network Dynamics: Stability vs. Chaos\nSpeakers: Maddy Cosg
riff, Eli Miller, Sabastian Mugazambi, Patrick O’Reilly\nTime: 4:30 pm\nTi
tle: Adventures in Algebra: Developing a Bar Modeling Curriculum\nSpeakers
: Meg Crenshaw, Charlotte Mann, Zoe Peterson, Alli Domingues\nTime: 6:00 p
m\n
LOCATION:Olin 141
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1468605
LAST-MODIFIED:20170215T152012
CREATED:20160916T131147
DTSTAMP:20200601T090152
DTSTART:20170223T153000
DURATION:PT3H30M0S
END:VEVENT
BEGIN:VEVENT
UID:20170207134830-1524598@carleton.edu
SUMMARY:Konhauser Problemfest
DESCRIPTION:The Konhauser Problemfest is an annual problem-solving contest
in which teams from around the region compete to solve challenging mathem
atics problems. The contest is named for Joseph Konhauser, a longtime pro
fessor, problem-solver, and problem-poser at Macalester College. The loca
tion of the contest rotates among Carleton, Macalester, St. Olaf, and St.
Thomas, but teams from Gustavus, St. Catherine, Augsburg, and other colleg
es and universities in the region often compete. The winning team gets to
bring a handsome trophy to their school, which includes a granite sculptu
re illustrating a dissection proof of a well-known theorem on pizza slicin
g.
LOCATION:Weitz 236
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1524598
LAST-MODIFIED:20170207T135008
CREATED:20170207T134830
DTSTAMP:20200601T090152
DTSTART:20170225T083000
DURATION:PT5H30M0S
END:VEVENT
BEGIN:VEVENT
UID:20170206105522-1523745@carleton.edu
SUMMARY:Math Across the Cannon Talk
DESCRIPTION:Ken Oto from Emory University will be giving a talk.
LOCATION:Olin 141
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1523745
LAST-MODIFIED:20170206T140332
CREATED:20170206T105522
DTSTAMP:20200601T090152
DTSTART:20170302T153000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20160916131239-1468607@carleton.edu
SUMMARY:Mathematics and Statistics Group Comps Presentations
DESCRIPTION:Reducibility, Stability, and Polynomial Iterates, 3:30 p.m.\nD
avid DeMark, Moses Misplon, Michael Stoneman\nUsing Time Series Methods to
Estimate Temperature Trend Uncertainty Due to Internal Variability in a C
limate Model, 4:30 p.m. Melissa Bain, Caitlin Eichten, Il Shan Ng, Lianne
Siegel\nShift Spaces and S-limited Shifts, 6:00 p.m.\nBen Matson
LOCATION:Olin 141
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1468607
LAST-MODIFIED:20170510T143416
CREATED:20160916T131239
DTSTAMP:20200601T090152
DTSTART:20170516T153000
DURATION:PT3H30M0S
END:VEVENT
BEGIN:VEVENT
UID:20160916131323-1468611@carleton.edu
SUMMARY:Mathematics and Statistics Group Comps Presentations
DESCRIPTION:Persistence is Key: Using Topology to Determine the Shape of D
ata, 3:30 p.m.\nThomas Redding, Nathan Bern, and Nate Osher\n/r/comps\nA S
tatistical Analysis of Network Data from Reddit, 4:30 p.m.\nGraham Earley,
Nikita Fomichev, Willa Langworthy, Ruyi Shen\n
LOCATION:Olin 141
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1468611
LAST-MODIFIED:20170510T144828
CREATED:20160916T131323
DTSTAMP:20200601T090152
DTSTART:20170518T153000
DURATION:PT2H30M0S
END:VEVENT
BEGIN:VEVENT
UID:20180327134903-1697106@carleton.edu
SUMMARY:Math Across the Cannon Talk
DESCRIPTION:Jessica Utts from the University of California, Irvine and For
mer President of the American Statistical Association will be giving a tal
k.
LOCATION:Weitz Cinema
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1697106
LAST-MODIFIED:20180327T140001
CREATED:20180327T134903
DTSTAMP:20200601T090152
DTSTART:20180424T190000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20180912110730-1748507@carleton.edu
SUMMARY:Kenan Lecture
DESCRIPTION:Sam Patterson, William R. Kenan Jr. Professor of Mathematics a
t Carleton College will be giving a talk.
LOCATION:CMC 206
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1748507
LAST-MODIFIED:20180912T142843
CREATED:20180912T110730
DTSTAMP:20200601T090152
DTSTART:20180920T160000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20180925084955-1754075@carleton.edu
SUMMARY:Northfield Undergraduate Mathematics Symposium
DESCRIPTION:Northfield Undergraduate Mathematics Symposium\nOctober 2, 201
8\nCarleton College\nEach year Carleton and St. Olaf students work on a va
riety of interesting research problems in mathematics, both here in Northf
ield and around the country. Several of these students will be sharing th
e work they did this past summer at the 2018 Northfield Undergraduate Math
ematics Symposium. These talks all promise to be fascinating, but each on
e also counts for half of one of the eight talks junior and senior math an
d stats majors need to attend to satisfy their lecture attendance requirem
ent. Below is the schedule for the symposium.\nSchedule of Talks\n3:40 pm
Drawing three trees at once - Edge-disjoint Tree Representation of Thr
ee Tree Degree Sequences, Ian Seong (Carleton College)\n4:05 pm One Sol
vable Leibniz Algebras with Abelian Nilradical, Kyle Pohl (St. Olaf Colleg
e)\n4:30 pm Spectral Analysis of a Neural Field Model, Keenan Ronayne (
Carleton College)\n4:55 pm Linear Factorization of Hypercyclic Function
s for Differential Operators, Jakob Hofstad (St. Olaf College)\n5:20 pm
Break for Dinner\n6:00 pm Special Sets of Vertices in Paley Graphs, Cl
ara Buck (Carleton College)\n6:25 pm Lattice Based Cryptography and Ful
ly Holomorphic Encryption, Ani Nadiga (Carleton College)\n6:50 pm Const
ructing Generalized Gelfand-Graev Representations, Julie Yuldasheva (St. O
laf College)\n7:15 pm Exploring Upper Bounds of Graph Proper Diameters
, Nathaniel Sauerberg (Carleton College)
LOCATION:CMC 206
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1754075
LAST-MODIFIED:20180925T091853
CREATED:20180925T084955
DTSTAMP:20200601T090152
DTSTART:20181002T154000
DURATION:PT4H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20190417113950-1821276@carleton.edu
SUMMARY:Math Across the Cannon Talk
DESCRIPTION:Robert Ghrist from the University of Pennsylvania will be givi
ng a talk.
LOCATION:Olin 141
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1821276
LAST-MODIFIED:20190417T115526
CREATED:20190417T113950
DTSTAMP:20200601T090152
DTSTART:20190502T150000
DURATION:PT1H30M0S
END:VEVENT
BEGIN:VEVENT
UID:20190924112157-1863552@carleton.edu
SUMMARY:Performance by Eugenia Cheng
DESCRIPTION:Eugenia Cheng who is a Scientist in Residence at the School of
the Art Institute of Chicago will be performing.
LOCATION:Applebaum Recital Hall
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1863552
LAST-MODIFIED:20190924T113944
CREATED:20190924T112157
DTSTAMP:20200601T090152
DTSTART:20191002T193000
DURATION:PT1H0M0S
END:VEVENT
BEGIN:VEVENT
UID:20190924114210-1863583@carleton.edu
SUMMARY:Math Across the Cannon Talk
DESCRIPTION:Eugenia Cheng who is a Scientist in Residence at the School of
the Art Institute of Chicago will be giving a talk.
LOCATION:Weitz Cinema
URL:https://apps.carleton.edu/curricular/math/events/?event_id=1863583
LAST-MODIFIED:20190930T104535
CREATED:20190924T114210
DTSTAMP:20200601T090152
DTSTART:20191003T190000
DURATION:PT1H0M0S
END:VEVENT
END:VCALENDAR