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PRODID:-//Department of Mathematics - ECPv4.6.13//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Department of Mathematics
X-ORIGINAL-URL:https://math.sciences.ncsu.edu
X-WR-CALDESC:Events for Department of Mathematics
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180426T080000
DTEND;TZID=America/New_York:20180429T170000
DTSTAMP:20180426T130239
CREATED:20180330T163505Z
LAST-MODIFIED:20180330T163505Z
UID:12028-1524729600-1525021200@math.sciences.ncsu.edu
SUMMARY:The Fourth Duke Mathematical Journal Conference April 26-29\, 2018
DESCRIPTION:The goal of this conference is to bring young mathematicians together\, both as speakers and as participants. The talks will cover an array of subject areas that are well represented in the Duke Journal. There will be nine talks by young mathematicians. \nMore information can be found at: \nhttps://sites.duke.edu/dmj2018/ \n
URL:https://math.sciences.ncsu.edu/event/the-fourth-duke-mathematical-journal-conference-april-26-29-2018/
CATEGORIES:Special Events
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180426T150000
DTEND;TZID=America/New_York:20180426T160000
DTSTAMP:20180426T130239
CREATED:20180423T021300Z
LAST-MODIFIED:20180423T021300Z
UID:12136-1524754800-1524758400@math.sciences.ncsu.edu
SUMMARY:Faye Pasley\, Molly Lynch\, NC State
DESCRIPTION:Speaker 1: Faye Pasley\nTitle: Determinantal Representations\, the Numerical Range\, and Invariance\nWe study hyperbolic polynomials with symmetry and express them as the determinant of a Hermitian matrix with special structure. By properly modifying a construction of Dixon (1902)\, we show for every hyperbolic polynomial of degree $n$ invariant under the cyclic group of order $n$ there exists a determinantal representation admitted via some cyclic weighted shift matrix. Moreover\, this gives a nice result related to the numerical range of a matrix with the same invariance.\n\nSpeaker 2: Molly Lynch\nTitle: Combinatorics of crystal graphs\nAbstract: In this talk\, we explore the combinatorics of crystal graphs. One of our main goals is to understand relations among so called crystal operators. We can assign a certain graph to the crystal base associated to a highest weight representation of classical Cartan type. These graphs are endowed with a natural partial order. We use tools from poset topology\, particularly lexicographic discrete Morse theory\, to study relations among crystal operators. We end by discussing the special case of crystals of two rowed shapes.\n
URL:https://math.sciences.ncsu.edu/event/faye-pasley-molly-lynch-nc-state/
CATEGORIES:Graduate Student Algebra Seminar
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180426T163000
DTEND;TZID=America/New_York:20180426T173000
DTSTAMP:20180426T130239
CREATED:20180424T211138Z
LAST-MODIFIED:20180424T211226Z
UID:12140-1524760200-1524763800@math.sciences.ncsu.edu
SUMMARY:Maggie Figueroa\, Olivia Trogdon\, Benjamin Wendt and Gautam Niagara\, NC State\, Honors Students Research Presentation
DESCRIPTION:\n Maggie Figueroa\n\n \nTitle: Breaking Cryptography – the Discrete Log Problem \n \nAbstract: The goal of cryptography is to allow ciphertext to be decoded only by the intended recipient. The privacy of the message relies heavily on the key used in the encryption function. Once a key is obtained\, the decryption function follows easily. Cryptosystems such as the ElGamal system and the Diffie-Hellman key exchange protocol maintain their privacy through the discrete logarithm problem. This paper expands on the methods used in order to maintain the privacy of the key used. I will also introduce Pollard’s Kangaroo method\, a concept used in solving the discrete logarithm problem and how this allows us break the Diffie-Hellman key exchange protocol and the ElGamal system. (Faculty mentor: Dr. E. Stitzinger) \n \n\n Olivia Trogdon\n\n \nTitle: Finding the Probability that the Population Goes Extinct \n \nAbstract:Predicting a random event may sound like an oxymoron. However\, using probability theory we can sometimes make a precise prediction about such events. Probability theory allows us to model random events\, which can provide possible outcomes of what may (or may not) happen in the future. In this work\, we use probability theory to determine the precise probability that a certain class of population models go extinct. Taking advantage of the notion of generating function\, we record the essential information from all generation’s population size in these deterministic functions. Studying the relationship among the generating functions for different generations’ population size\, we then relate the extinction probability to the fixed point of the generating function from offspring distribution and determine what is the probability that a future population will cease to exist. (Faculty mentor: M. Kang) \n \n\n Benjamin Wendt\n\n \nTitle: Teaching Topology in Middle School \n \nAbstract:For those outside the field of Mathematics\, there is little understanding of what a Mathematician is or does. Thus\, it is uncommon for a child to desire to be mathematician when they grow up. My research involved finding examples and research of how the topic of Topology can be used to expand student’s knowledge of how Mathematics is done and what a Mathematician does. I also created two descriptive lesson plans (with tasks backed up by evidence) that a middle school teacher can use. (Faculty Mentor: R. Sazdanovic) \n \n\n Gautam Nagaraj\n\n \nTitle: Black Hole Masses for Type I AGNs from Chandra COSMOS Legacy Survey: A Classic Case of Finding the Right Fit \n \nAbstract:Tight local relations between supermassive black hole (SMBH) masses and galaxy properties have established the fundamental connection between SMBHs and their host galaxies. However\, in order to better understand the coevolution of SMBHs and their host galaxies over cosmic time\, we need measurements of black hole masses\, active galactic nuclei (AGN) luminosities\, and galaxy stellar masses from sizable samples of AGN covering lower luminosities than the brightest quasars spanning a wide redshift range. In this study\, we report masses of the SMBHs of 224 Type I AGN from the Chandra COSMOS Legacy Survey as determined by the line widths of Mg II 2798\, Hb 4862\, and Ha 6564 via scaling relations derived from reverberation mapping. Preliminary comparison with host galaxy luminosities and stellar masses suggests an increase in Eddington ratio with redshift\, consistent with previous studies. In addition\, our derived SMBH masses fall above the local AGN MBH–M* (galactic stellar mass) relation from Reines & Volonteri (2015)\, but it is still not clear whether this results from redshift evolution of the MBH–M* relation or from the incompleteness of the spectroscopic surveys available. (Faculty Mentor: F. Fornasini\, F. Civano) \n \n
URL:https://math.sciences.ncsu.edu/event/maggie-figueroa-olivia-trogdon-benjamin-wendt-and-gautam-niagara-nc-state-honors-students-research-presentation/
CATEGORIES:Departmental Event
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180427T150000
DTEND;TZID=America/New_York:20180427T160000
DTSTAMP:20180426T130239
CREATED:20180413T182721Z
LAST-MODIFIED:20180417T190457Z
UID:12101-1524841200-1524844800@math.sciences.ncsu.edu
SUMMARY:Rosalie Bélanger-Rioux\, Harvard University\, Strategies for Supporting Diversity in Mathematics Departments
DESCRIPTION:There are many reasons\, moral and practical\, why we need to diversify our mathematics departments — and more generally STEM departments and the workforce. But how do we go about it? A good starting point is to realize the various barriers to an inclusive environment. In this talk\, a case study will be used to illuminate some of those roadblocks. This will help us think more critically about how those barriers arise\, where they arise (teaching and learning\, undergraduate life\, graduate student admissions and training\, faculty hiring and support\, etc)\, why they may be difficult to spot\, and what we can do to break them down. But it is not enough to address obstacles. A next step is to seek feedback\, to listen — and to trust the perspectives and experiences of marginalized students and colleagues. Those voices need to be elevated and prioritized so we can begin to act in responsive\, respectful\, helpful ways; and break down more barriers. \n
URL:https://math.sciences.ncsu.edu/event/rosalie-belanger-rioux-harvard-university-strategies-for-supporting-diversity-in-mathematics-departments/
CATEGORIES:Special Events
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180502T110000
DTEND;TZID=America/New_York:20180502T120000
DTSTAMP:20180426T130239
CREATED:20180110T175323Z
LAST-MODIFIED:20180110T175323Z
UID:11253-1525258800-1525262400@math.sciences.ncsu.edu
SUMMARY:AWM weekly brown bag lunch
DESCRIPTION:The Association for Women in Mathematics (AWM) will be hosting our weekly brown bag lunch. Attendees bring their own lunches\, and have the opportunity to be in a casual discussion environment\, while we provide a tasty treat! AWM is NOT exclusively for women\, and we would like to emphasize that everyone is welcome join us at this weekly event\, including undergraduates\, graduate students\, and faculty members. \n
URL:https://math.sciences.ncsu.edu/event/awm-weekly-brown-bag-lunch-3/2018-05-02/
CATEGORIES:Association for Women in Mathematics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180507T150000
DTEND;TZID=America/New_York:20180507T160000
DTSTAMP:20180426T130239
CREATED:20180402T175718Z
LAST-MODIFIED:20180402T175718Z
UID:12052-1525705200-1525708800@math.sciences.ncsu.edu
SUMMARY:Emily Barnard\, Northeastern University
DESCRIPTION:
URL:https://math.sciences.ncsu.edu/event/emily-barnard-northeastern-university/
CATEGORIES:Algebra and Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20180509T110000
DTEND;TZID=America/New_York:20180509T120000
DTSTAMP:20180426T130239
CREATED:20180110T175323Z
LAST-MODIFIED:20180110T175323Z
UID:11254-1525863600-1525867200@math.sciences.ncsu.edu
SUMMARY:AWM weekly brown bag lunch
DESCRIPTION:The Association for Women in Mathematics (AWM) will be hosting our weekly brown bag lunch. Attendees bring their own lunches\, and have the opportunity to be in a casual discussion environment\, while we provide a tasty treat! AWM is NOT exclusively for women\, and we would like to emphasize that everyone is welcome join us at this weekly event\, including undergraduates\, graduate students\, and faculty members. \n
URL:https://math.sciences.ncsu.edu/event/awm-weekly-brown-bag-lunch-3/2018-05-09/
CATEGORIES:Association for Women in Mathematics
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