Proposals
Below are some proposals for talks from the past (and current). By clicking on the ID number, more details are shown. By default, these are sorted chronologically (recent first) and by then by last name. The data can be sorted by alternate means by using the links at the top right, each allowing ascending or descending orders.
Displaying 381-400 of 471 results.
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ID:
498
Year: 2018
Name: Wako Bungula
Institution: University of Iowa
Subject area(s): Topological Data Analysis
Title of Talk: Filtration and Stability of Mapper Graph for Point Cloud Data
Abstract: Filtration and stability of TDA Mapper graph for topological spaces have been studied; and using a generalization of the Bottleneck distance called interleaving distance, the stability of Mapper graph for the topological spaces has been proven. A problem arises when trying to extend this stability theorem to the point cloud data case because clustering algorithms do not usually give filtration. I will be talking about the conditions required for the stability theorem to be extended to point cloud data case.
Year: 2018
Name: Wako Bungula
Institution: University of Iowa
Subject area(s): Topological Data Analysis
Title of Talk: Filtration and Stability of Mapper Graph for Point Cloud Data
Abstract: Filtration and stability of TDA Mapper graph for topological spaces have been studied; and using a generalization of the Bottleneck distance called interleaving distance, the stability of Mapper graph for the topological spaces has been proven. A problem arises when trying to extend this stability theorem to the point cloud data case because clustering algorithms do not usually give filtration. I will be talking about the conditions required for the stability theorem to be extended to point cloud data case.
ID:
541
Year: 2019
Name: Christina Pospisil
Institution: University of Massachusetts Boston
Subject area(s):
Title of Talk: Generalization Theory for Linear Algebra I: An Embedding Algorithm and an appropriate Inverse for non-injective mappings in one dimension
Abstract: An algorithm for multiplying and adding matrices regardless of dimensions via an embedding is presented. An equivalent embedding for a general determinant theory is also investigated (Part I: Appropriate Inverses for non-injective mappings in one dimension are presented). In future work there will be applications to physics and other natural sciences be explored.
Year: 2019
Name: Christina Pospisil
Institution: University of Massachusetts Boston
Subject area(s):
Title of Talk: Generalization Theory for Linear Algebra I: An Embedding Algorithm and an appropriate Inverse for non-injective mappings in one dimension
Abstract: An algorithm for multiplying and adding matrices regardless of dimensions via an embedding is presented. An equivalent embedding for a general determinant theory is also investigated (Part I: Appropriate Inverses for non-injective mappings in one dimension are presented). In future work there will be applications to physics and other natural sciences be explored.
ID:
542
Year: 2019
Name: Michael Loper
Institution: University of Minnesota
Subject area(s):
Title of Talk: Combating Math Anxiety Through Mastery Based Testing
Abstract: Math anxiety is a major deterrent to learning in College Algebra. One way to reduce test anxiety is through mastery based testing. Another way is by aiming for a higher average exam score by eliminating the most difficult questions on an exam. In this talk I will discuss how the University of Minnesota implemented both of these techniques while instructing College Algebra. I will also explain how the use of optional “A-work” helped to distinguish top scoring students’ grades.
Year: 2019
Name: Michael Loper
Institution: University of Minnesota
Subject area(s):
Title of Talk: Combating Math Anxiety Through Mastery Based Testing
Abstract: Math anxiety is a major deterrent to learning in College Algebra. One way to reduce test anxiety is through mastery based testing. Another way is by aiming for a higher average exam score by eliminating the most difficult questions on an exam. In this talk I will discuss how the University of Minnesota implemented both of these techniques while instructing College Algebra. I will also explain how the use of optional “A-work” helped to distinguish top scoring students’ grades.
ID:
570
Year: 2021
Name: James Sellers
Institution: University of Minnesota - Duluth
Subject area(s):
Title of Talk: Revisiting What Euler and the Bernoullis Knew About Convergent Infinite Series
Abstract: All too often in first-year calculus classes, conversations about infinite series stop with discussions about convergence or divergence. Such interactions are, unfortunately, not often illuminating or intriguing. Interestingly enough, Jacob and Johann Bernoulli and Leonhard Euler (and their contemporaries in the early 18th century) knew quite a bit about how to find the *exact* values of numerous families of convergent infinite series. In this talk, I will show two sets of *exact* results in this vein. The talk will be accessible to anyone interested in mathematics.
Year: 2021
Name: James Sellers
Institution: University of Minnesota - Duluth
Subject area(s):
Title of Talk: Revisiting What Euler and the Bernoullis Knew About Convergent Infinite Series
Abstract: All too often in first-year calculus classes, conversations about infinite series stop with discussions about convergence or divergence. Such interactions are, unfortunately, not often illuminating or intriguing. Interestingly enough, Jacob and Johann Bernoulli and Leonhard Euler (and their contemporaries in the early 18th century) knew quite a bit about how to find the *exact* values of numerous families of convergent infinite series. In this talk, I will show two sets of *exact* results in this vein. The talk will be accessible to anyone interested in mathematics.
ID:
204
Year: 2007
Name: Joseph A. Gallian
Institution: University of Minnesota, Duluth
Subject area(s):
Title of Talk: Using groups and graphs to create symmetry patterns, Parts 1
Abstract: Part 1 concerns the problem of traversing an m by n directed grid embedded on a torus so that each vertex is visited exactly once before returning to the starting position. We also consider generalizations and variations on this theme.
Year: 2007
Name: Joseph A. Gallian
Institution: University of Minnesota, Duluth
Subject area(s):
Title of Talk: Using groups and graphs to create symmetry patterns, Parts 1
Abstract: Part 1 concerns the problem of traversing an m by n directed grid embedded on a torus so that each vertex is visited exactly once before returning to the starting position. We also consider generalizations and variations on this theme.
ID:
205
Year: 2007
Name: Joseph A. Gallian
Institution: University of Minnesota, Duluth
Subject area(s):
Title of Talk: Using groups and graphs to create symmetry patterns, Part 2
Abstract: Part 2 is a discussion of how Hamiltonian paths, spanning trees, cosets in groups, and factor groups can be used to create computer generated symmetry patterns in hyperbolic and Euclidean planes. These methods were used to create the image for the 2003 Mathematics Awareness Month poster.
Year: 2007
Name: Joseph A. Gallian
Institution: University of Minnesota, Duluth
Subject area(s):
Title of Talk: Using groups and graphs to create symmetry patterns, Part 2
Abstract: Part 2 is a discussion of how Hamiltonian paths, spanning trees, cosets in groups, and factor groups can be used to create computer generated symmetry patterns in hyperbolic and Euclidean planes. These methods were used to create the image for the 2003 Mathematics Awareness Month poster.
ID:
547
Year: 2019
Name: Patrick Rault
Institution: University of Nebraska at Omaha
Subject area(s):
Title of Talk: A Dozen National and Regional Mini-grant opportunities for Undergraduate Faculty
Abstract: A wide range of mini-grants are available to support both teaching and research. The Inquiry-Based Learning Iowa-Nebraska Community (IBLINC) is now offering mini-grants for a wide range of peer-collaboration activities ranging from attending events to collaborating on course materials. This builds on a national momentum to offer mini-grants from the MAA for a wide variety of teaching activities, from CURM for an academic-year REU-style project with our students, and from AIM for a weeklong research retreat for your faculty team. While most of these programs are grant funded, the MAA’s Project NExT program has raised substantial continuing funds to provide professional development and a supportive community for new faculty. Join us to hear about a dozen such funding sources, learn what the aforementioned acronyms stand for, or share your own experiences.
Year: 2019
Name: Patrick Rault
Institution: University of Nebraska at Omaha
Subject area(s):
Title of Talk: A Dozen National and Regional Mini-grant opportunities for Undergraduate Faculty
Abstract: A wide range of mini-grants are available to support both teaching and research. The Inquiry-Based Learning Iowa-Nebraska Community (IBLINC) is now offering mini-grants for a wide range of peer-collaboration activities ranging from attending events to collaborating on course materials. This builds on a national momentum to offer mini-grants from the MAA for a wide variety of teaching activities, from CURM for an academic-year REU-style project with our students, and from AIM for a weeklong research retreat for your faculty team. While most of these programs are grant funded, the MAA’s Project NExT program has raised substantial continuing funds to provide professional development and a supportive community for new faculty. Join us to hear about a dozen such funding sources, learn what the aforementioned acronyms stand for, or share your own experiences.
ID:
381
Year: 2014
Name: Robert Todd
Institution: University of Nebraska at Omaha
Subject area(s): knot theory, undergraduate research
Title of Talk: Khovanov Homology: An undergraduate research project
Abstract: Khovanov homology is a sophisticated construction in knot theory, a branch of mathematics which is foreign and mysterious to many undergraduates. However, with only some linear algebra, some computer skills, and a little maturity as prerequisites, Khovanov homology can be used as a context to introduce many important mathematical ideas. I will discuss an on-going undergraduate research project whose goal is to compute the Khovanov homology of some families of knots. Such computations have only been performed for a handful of examples, thus our results will be of interest to researchers in the field. There will be many pictures and examples.
Year: 2014
Name: Robert Todd
Institution: University of Nebraska at Omaha
Subject area(s): knot theory, undergraduate research
Title of Talk: Khovanov Homology: An undergraduate research project
Abstract: Khovanov homology is a sophisticated construction in knot theory, a branch of mathematics which is foreign and mysterious to many undergraduates. However, with only some linear algebra, some computer skills, and a little maturity as prerequisites, Khovanov homology can be used as a context to introduce many important mathematical ideas. I will discuss an on-going undergraduate research project whose goal is to compute the Khovanov homology of some families of knots. Such computations have only been performed for a handful of examples, thus our results will be of interest to researchers in the field. There will be many pictures and examples.
ID:
509
Year: 2018
Name: Patrick Rault
Institution: University of Nebraska Omaha
Subject area(s):
Title of Talk: Regional Communities of Practice around Inquiry-Based Learning
Abstract: What began as a small group of professors gathering to discuss implementation of Inquiry-Based Learning (IBL) in our classes has developed into a strong regional community of practice. The Upstate New York IBL consortium was created in 2014 with a mission to create, grow, and maintain a community of instructors across the region. We will discuss how the consortium formed organically, the way that it operates, and several efforts to replicate it in other regions. Suggestions will be provided for creating your own regional community of practice for supporting the adoption and enhancement of active learning techniques.
Year: 2018
Name: Patrick Rault
Institution: University of Nebraska Omaha
Subject area(s):
Title of Talk: Regional Communities of Practice around Inquiry-Based Learning
Abstract: What began as a small group of professors gathering to discuss implementation of Inquiry-Based Learning (IBL) in our classes has developed into a strong regional community of practice. The Upstate New York IBL consortium was created in 2014 with a mission to create, grow, and maintain a community of instructors across the region. We will discuss how the consortium formed organically, the way that it operates, and several efforts to replicate it in other regions. Suggestions will be provided for creating your own regional community of practice for supporting the adoption and enhancement of active learning techniques.
ID:
261
Year: 2009
Name: Steven Dunbar
Institution: University of Nebraska-Lincoln
Subject area(s):
Title of Talk: MAA's American Mathematics Competitions: Easy Problems, Hard Problems, History and Outcomes
Abstract: How do you get bright students hooked on mathematics? How do you keep teachers intellectually engaged and pedagogically innovative? A proven way is to involve them both in mathematics competitions with great problems that span the curriculum. The Mathematical Association of America has continuously sponsored nationwide high-school level math contests since 1952. The sequence of contests now has 5 different contests at increasing levels of mathematical sophistication. Students who succeed at the top level on these contests become the team representing the U.S. at the annual International Mathematical Olympiad. I'll showcase some interesting, easy and hard contest problems, and a little bit of history. Along the way, I'll comment about the intersection of these contests with the school mathematics curriculum.
Year: 2009
Name: Steven Dunbar
Institution: University of Nebraska-Lincoln
Subject area(s):
Title of Talk: MAA's American Mathematics Competitions: Easy Problems, Hard Problems, History and Outcomes
Abstract: How do you get bright students hooked on mathematics? How do you keep teachers intellectually engaged and pedagogically innovative? A proven way is to involve them both in mathematics competitions with great problems that span the curriculum. The Mathematical Association of America has continuously sponsored nationwide high-school level math contests since 1952. The sequence of contests now has 5 different contests at increasing levels of mathematical sophistication. Students who succeed at the top level on these contests become the team representing the U.S. at the annual International Mathematical Olympiad. I'll showcase some interesting, easy and hard contest problems, and a little bit of history. Along the way, I'll comment about the intersection of these contests with the school mathematics curriculum.
ID:
531
Year: 2019
Name: Alvaro Carbonero
Institution: University of Nevada, Las Vegas
Subject area(s): Discrete Geometry
Title of Talk: Exploring Preference Orderings Through Discrete Geometry
Abstract: Consider $n + 1$ points in the plane: a set $S$ consisting of $n$ points along with a distinguished vantage point $v$. By measuring the distance from $v$ to each of the points in $S$, we generate a preference ordering of $S$. This work is motivated by a voting theory application, where an ordering corresponds to a preference list. The maximum number of orderings possible is given by a fourth-degree polynomial (related to Stirling numbers of the first kind), found by Good and Tideman (1977), while the minimum is given by a linear function. We investigate intermediate numbers of orderings achievable by special configurations $S$. We also consider this problem for points on the sphere, where our results are similar to what we found for the plane. A variant of the problem that uses two vantage points is also developed.
Year: 2019
Name: Alvaro Carbonero
Institution: University of Nevada, Las Vegas
Subject area(s): Discrete Geometry
Title of Talk: Exploring Preference Orderings Through Discrete Geometry
Abstract: Consider $n + 1$ points in the plane: a set $S$ consisting of $n$ points along with a distinguished vantage point $v$. By measuring the distance from $v$ to each of the points in $S$, we generate a preference ordering of $S$. This work is motivated by a voting theory application, where an ordering corresponds to a preference list. The maximum number of orderings possible is given by a fourth-degree polynomial (related to Stirling numbers of the first kind), found by Good and Tideman (1977), while the minimum is given by a linear function. We investigate intermediate numbers of orderings achievable by special configurations $S$. We also consider this problem for points on the sphere, where our results are similar to what we found for the plane. A variant of the problem that uses two vantage points is also developed.
ID:
513
Year: 2018
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s): topology
Title of Talk: Playing with topology: knots and branched covers
Abstract: In joint work with undergraduate Dan Tarnow, we played with lifting knot diagrams from the sphere to other surfaces using branched covers and a combinatorial construction called a 'butterfly diagram.' We played with many examples, including finding many lifts of the trefoil. I'll share our small collection of results, some of the 3d printed knots that Dan made, and how I am pretty sure we asked the wrong questions.
Year: 2018
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s): topology
Title of Talk: Playing with topology: knots and branched covers
Abstract: In joint work with undergraduate Dan Tarnow, we played with lifting knot diagrams from the sphere to other surfaces using branched covers and a combinatorial construction called a 'butterfly diagram.' We played with many examples, including finding many lifts of the trefoil. I'll share our small collection of results, some of the 3d printed knots that Dan made, and how I am pretty sure we asked the wrong questions.
ID:
263
Year: 2009
Name: Bridgette Stevens
Institution: University of Northern Iowa
Subject area(s): Mathematics Education
Title of Talk: Mathematics Courses for Elementary Education Majors
Abstract: At the recent IMSEP Summit for math and science educators in August, it was discussed that mathematics educators should begin a dialogue regarding a set of core competencies (content) for teaching elementary mathematics in the state of Iowa. To in part meet that need, this is a working group session in which participants will discuss a variety of issues around the mathematics courses offered for prospective elementary mathematics teachers at Iowa
Year: 2009
Name: Bridgette Stevens
Institution: University of Northern Iowa
Subject area(s): Mathematics Education
Title of Talk: Mathematics Courses for Elementary Education Majors
Abstract: At the recent IMSEP Summit for math and science educators in August, it was discussed that mathematics educators should begin a dialogue regarding a set of core competencies (content) for teaching elementary mathematics in the state of Iowa. To in part meet that need, this is a working group session in which participants will discuss a variety of issues around the mathematics courses offered for prospective elementary mathematics teachers at Iowa
ID:
264
Year: 2009
Name: Catherine Miller and Megan Balong
Institution: University of Northern Iowa
Subject area(s): Mathematics Education
Title of Talk: An overview of Mathematics in the Iowa Core Curriculum
Abstract: Information about the Iowa Core Curriculum's mathematics component will be shared. Focus will be on the grades 9-12 component as it is to be implemented in Iowa classrooms first. We will also discuss some ways in which the Iowa Core Curriculum may affect college mathematics curriculum and instruction.
Year: 2009
Name: Catherine Miller and Megan Balong
Institution: University of Northern Iowa
Subject area(s): Mathematics Education
Title of Talk: An overview of Mathematics in the Iowa Core Curriculum
Abstract: Information about the Iowa Core Curriculum's mathematics component will be shared. Focus will be on the grades 9-12 component as it is to be implemented in Iowa classrooms first. We will also discuss some ways in which the Iowa Core Curriculum may affect college mathematics curriculum and instruction.
ID:
266
Year: 2009
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s): teaching, geometry
Title of Talk: Proof in Geometry: Euclid and a Class Journal
Abstract: I'll discuss how I use Euclid as a text, and a class journal as assessment in a Euclidean Geometry course aimed at pre-service teachers.
Year: 2009
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s): teaching, geometry
Title of Talk: Proof in Geometry: Euclid and a Class Journal
Abstract: I'll discuss how I use Euclid as a text, and a class journal as assessment in a Euclidean Geometry course aimed at pre-service teachers.
ID:
268
Year: 2009
Name: Corey Gevaert
Institution: University of Northern Iowa
Subject area(s):
Title of Talk: Isometries of a Giant Product Space
Abstract: I'll be discussing the isometries of the product space Y which is formed by an infinite amount of hyperbolic plane fibers lined up from 0 to 1. I'll be discussing how the hyperbolic isometries are carried over and the Lebesgue transformations that influence these isometries.
Year: 2009
Name: Corey Gevaert
Institution: University of Northern Iowa
Subject area(s):
Title of Talk: Isometries of a Giant Product Space
Abstract: I'll be discussing the isometries of the product space Y which is formed by an infinite amount of hyperbolic plane fibers lined up from 0 to 1. I'll be discussing how the hyperbolic isometries are carried over and the Lebesgue transformations that influence these isometries.
ID:
280
Year: 2010
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s): combinatorics, number theory, undergraduate research
Title of Talk: Patterns and Structure in M-ary Partitions
Abstract: For a fixed natural number m, an m-ary partition of another number n is a way to write n as a sum of powers of m. For example 7= 3^0 + 3^1+3^1 is a 3-ary partition of 7. For each m, we can describe a sequence b_m(n) which counts the number of m-ary paritions of n, and this sequence has some some beautiful number theoretic properties. In joint work with James Sellers (Penn State) and Mac Roepke (UNI student), we describe and explain rich structure inside the m-ary partition sequences with a surprisingly straight-forward computation, and hint at other questions to come.
Year: 2010
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s): combinatorics, number theory, undergraduate research
Title of Talk: Patterns and Structure in M-ary Partitions
Abstract: For a fixed natural number m, an m-ary partition of another number n is a way to write n as a sum of powers of m. For example 7= 3^0 + 3^1+3^1 is a 3-ary partition of 7. For each m, we can describe a sequence b_m(n) which counts the number of m-ary paritions of n, and this sequence has some some beautiful number theoretic properties. In joint work with James Sellers (Penn State) and Mac Roepke (UNI student), we describe and explain rich structure inside the m-ary partition sequences with a surprisingly straight-forward computation, and hint at other questions to come.
ID:
539
Year: 2019
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s):
Title of Talk: Report from the MAA Congress
Abstract: I will share information from the MAA congress meeting at the most recent MathFest.
Year: 2019
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s):
Title of Talk: Report from the MAA Congress
Abstract: I will share information from the MAA congress meeting at the most recent MathFest.
ID:
304
Year: 2011
Name: Joel Haack
Institution: University of Northern Iowa
Subject area(s): History of Mathematics
Title of Talk: Beginning a history of the Iowa Section of the MAA
Abstract: An interactive session focused on sources for the history of the Iowa Section of the MAA as part of its Centennial celebration in 2015.
Year: 2011
Name: Joel Haack
Institution: University of Northern Iowa
Subject area(s): History of Mathematics
Title of Talk: Beginning a history of the Iowa Section of the MAA
Abstract: An interactive session focused on sources for the history of the Iowa Section of the MAA as part of its Centennial celebration in 2015.
ID:
49
Year: 2004
Name: Joel Haack
Institution: University of Northern Iowa
Subject area(s): History of Mathematics, number theory
Title of Talk: How did Leonardo Pisano find three rational squares that differ by 5?
Abstract: This problem, which has often seemed intractable to students in a history of mathematics class, can in fact be approached in an understandable fashion, following Leonardo's own development in the Liber Quadratorum.
Year: 2004
Name: Joel Haack
Institution: University of Northern Iowa
Subject area(s): History of Mathematics, number theory
Title of Talk: How did Leonardo Pisano find three rational squares that differ by 5?
Abstract: This problem, which has often seemed intractable to students in a history of mathematics class, can in fact be approached in an understandable fashion, following Leonardo's own development in the Liber Quadratorum.