http://waw2011.math.wvu.edu/morenews
enMath Prof, Neutron Stars
http://waw2011.math.wvu.edu/node/1281
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>For the first time, scientists have directly detected gravitational waves—ripples in space and time—from the spectacular collision of two neutron stars. Light from the collision was also observed by telescopes, marking the first time that a cosmic event has been viewed in both gravitational waves and light.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-10-31</div></div></div>Thu, 19 Oct 2017 00:14:39 +0000grandpoobah1281 at http://waw2011.math.wvu.eduTim McCarty Prospectus
http://waw2011.math.wvu.edu/tim-mccarty_prospectus-2017-10-16
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>How Experts Conceptualize Differentials</p>
<p>Abstract: The differential is a symbol found in many mathematical contexts, including notations for differentiation and integration. But even though such notations are common, there can be many interpretations of the purposes or roles of the differentials in these notations. I wished to interview mathematicians and physicists to see how they interpreted differentials in a variety of settings and conducted two small studies to that end. I shall begin my talk by discussing a brief history of differential notation, the conceptualizations of the differential suggested by RUME and PER literature, and the idea of concept image (Tall & Vinner, 1981), which has shaped my research. I shall then present the results of my studies, which show that not only is there no formal concept definition of the differential evoked by all subjects, but there is also the suggestion that mathematicians and physicists view differentials contrarily. </p>
<p>Date: 10/16/2017<br />
Time: 4:00PM-5:30PM<br />
Place: 203 Armstrong Hall</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-10-16</div></div></div>Tue, 17 Oct 2017 22:18:43 +0000grandpoobah1277 at http://waw2011.math.wvu.eduKristen Murphy Prospectus
http://waw2011.math.wvu.edu/kristen-murphy_prospectus-2017-9-06
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Abstract: Spatial reasoning is required for many topics in undergraduate mathematics; graphing, curve sketching, transformations of functions, manipulation of objects in 3D, etc. Many topics covered in calculus require the student to use some sort of spatial skill to make informed decisions related to the problem at hand. However, unlike topics such as algebra and trigonometry, there are few programs that test students on their spatial reasoning skills before entering a course and then provide remediation if the student is lacking in that area. Some engineering programs do such testing and provide remediation, but no literature can be found on mathematics programs doing this. This study will employ haptic technology, computer-based technology that provides touch feedback, in order to determine if students who score low on a spatial skills test can be helped to refresh or acquire the skills they lack that will be necessary for later success in the calculus courses. </p>
<p>Date: 9/6/2017<br />
Time: 4:00PM-5:30PM<br />
Place: 119 Armstrong Hall</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-09-06</div></div></div>Tue, 29 Aug 2017 08:33:59 +0000grandpoobah1243 at http://waw2011.math.wvu.eduStudent Receives $5000 Actuarial Scholarship
http://waw2011.math.wvu.edu/actuarial-scholarship
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Congratulations to Maleesha Ebanks!</p>
<p>She received Milliman Actuarial scholarship $5000, which is targeted toward minority students that are underrepresented in the actuarial and professional services fields. She passed the first actuarial exam in July 2016 after taking Math 363 and attending the additional weekly practice session hosted by Actuarial Student Club. She said this scholarship has given her more motivation for passing next actuarial exam in December 2017. She is currently taking Math 364, which prepares her to take the second actuarial exam FM. </p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-08-18</div></div></div>Fri, 18 Aug 2017 18:39:31 +0000grandpoobah1242 at http://waw2011.math.wvu.eduThomas Adams Masters Project
http://waw2011.math.wvu.edu/thomas-adams_defense-2017-7-12
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Algorithms for Computing the Inverse of a Curl</p>
<p>Abstract: In order to transform data from a numerical simulation of binary black holes in which only the magnetic field B is computed, to another simulation in which only the vector potential A is computed, ∇ × A = B must be solved to generate a vector potential from the known magnetic field vector. We implement multiple methods for solving this equation based on finite difference numerical representations of the equation. One method of solving this equation directly is to solve the problem sequentially point-by-point, using the solution at previous points as constraints.</p>
<p>Two other methods of solving this problem focus on taking the curl of both sides of the equation and solve the resulting Poisson's equation. The first of these methods is to set up a large but very sparse matrix and solve globally using Gaussian Elimination. The second of these methods is perform a multigrid solve by setting up the problem on grids of multiple resolutions and solving on each level using an iterative technique.</p>
<p>Of the two Poisson's equation methods the multigrid solver is determined through testing to have superior computational scaling for very large magnetic fields to the global solver. It also holds the advantage over the direct point-by-point method of being able to easily incorporate adaptive mesh refinement which is needed for solving the problem on the incredibly large magnetic fields used by the simulations. This leads to the conclusion that the multigrid method should be the primary focus for testing and implementation.</p>
<p>Date: 7/12/2017<br />
Time: 3:30PM-4:30PM<br />
Place: 415 Hodges</p>
<p>All are welcome.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-07-12</div></div></div>Thu, 13 Jul 2017 13:14:48 +0000grandpoobah1230 at http://waw2011.math.wvu.eduJian Cheng Defense
http://waw2011.math.wvu.edu/jian-cheng_defense-2017-7-07
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Integer Flows and Circuit Covers of Signed Graphs</p>
<p>Abstract: <a href="/pdfs/Jian-Cheng-defense-abstract.pdf"> View </a></p>
<p>Date: 7/7/2017<br />
Time: 10:00AM-12:00PM<br />
Place: 207 Armstrong Hall</p>
<p>All are welcome.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-07-07</div></div></div>Mon, 26 Jun 2017 12:13:46 +0000grandpoobah1227 at http://waw2011.math.wvu.eduShadisadat Ghaderi Defense
http://waw2011.math.wvu.edu/shadisadat-ghaderi_defense-2017-6-26
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>On the Matroid Intersection Conjecture</p>
<p>Abstract: In this dissertation, we investigate the Matroid Intersection Conjecture for pairs of matroids on the same ground set, proposed by Nash-Williams in 1990. Originally, the conjecture was stated for finitary matroids only, but we consider it for general matroids and introduce new approaches to attack the conjecture.</p>
<p>The first approach is to consider the situation when it is possible to make a finite modification to the matroids after which the pair satisfies the conjecture. In such a situation we say that the pair has the “Almost Intersection Property”. We prove that any pair of matroids with the Almost Intersection Property must satisfy the Matroid Intersection Conjecture. Using this result we prove that the Matroid Intersection Conjecture is true in the case when one of the matroids has finite rank and also in the case when one of the matroids is a patchwork matroid.</p>
<p>Our second new approach is inspired by the proof of the general version of König’s Theorem for bipartite graphs. That result implies that the Matroid Intersection Conjecture is true for pairs of partition matroids. We develop some new techniques that generalize the "critical set" approach used in the proof of the countable version of König’s Theorem. Our results enable us to prove that the Matroid Intersection Conjecture is true for a pair of singular matroids on a set that is infinitely countable. A matroid is singular when it is a direct sum of matroids such that each term of the sum is a uniform matroid either of rank one or of co-rank one.</p>
<p>Date: 6/26/2017<br />
Time: 2:00PM-4:00PM<br />
Place: 207 Armstrong Hall</p>
<p>All are welcome.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-06-26</div></div></div>Tue, 13 Jun 2017 21:15:13 +0000grandpoobah1223 at http://waw2011.math.wvu.eduJaxon Lee Capstone
http://waw2011.math.wvu.edu/jaxon-lee-capston_2017-6-21
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Analytic Approaches to Common Means and their Inequalities</p>
<p>Abstract: Means are measurements of centrality, commonly used in science, engineering, statistics, and mathematics. There is a plethora of means and they measure centrality differently as to obtain the most pertinent information to the question at hand. We will discuss a specific subclass of means called Pythagorean means, which include the arithmetic, geometric, and harmonic means. We will also discuss the root mean squared, as these four means are the most common means to run into in science, engineering, and statistics applications. Lastly, we will show how the value of each of the means is related to one another through the inequality relationship between them.</p>
<p>Date: 6/21/2017<br />
Time: 4:00PM-5:00PM<br />
Place: 123 Armstrong Hall</p>
<p>All are welcome.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-06-21</div></div></div>Wed, 21 Jun 2017 09:41:39 +0000grandpoobah1225 at http://waw2011.math.wvu.eduNSO, June 2017
http://waw2011.math.wvu.edu/node/1222
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>At New Student Orientation (NSO), we’ll help you prepare for your first semester. You’ll learn about campus, explore your academic program and work with an academic adviser to create your class schedule.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-06-01</div></div></div>Wed, 07 Jun 2017 09:28:19 +0000grandpoobah1222 at http://waw2011.math.wvu.eduAriel Sitler Masters Project
http://waw2011.math.wvu.edu/ariel-sitler_defense-2017-5-03
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Abstract: Unmanned Aerial Vehicles (UAVs) are a valuable tool for image acquisition in the field of 3D mapping. UAVs are a low-cost alternative to manned aerial vehicles, and can be affixed with digital cameras capable of collecting high quality images of structures and terrain for the creation of 3D models. This research is an extension of previous work which used a genetic algorithm and space partitioning to optimize UAV flight paths over areas with structures. Here, the focus is on optimizing the structure mapping portion of the flight plan by imposing the grid technology used for the area portion in the previous work to a building face, then using the grid size, camera specifications, and desired resolution to determine the optimal offset distance from the building.</p>
<p>Date: 5/3/2017<br />
Time: 1:00PM-2:00PM<br />
Place: 313 Armstrong Hall</p>
<p>All are welcome.</p>
</div></div></div><div class="field field-name-field-date field-type-text field-label-above"><div class="field-label">Date, Location: </div><div class="field-items"><div class="field-item even">2017-05-03</div></div></div>Tue, 02 May 2017 08:51:20 +0000grandpoobah1215 at http://waw2011.math.wvu.edu