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Physical Sciences and Mathematics Commons™
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- Papers Presented at International Meetings (3)
- Adaptive mesh refinement (1)
- Bathymetry (1)
- CPS (1)
- Classroom Performance System (1)
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- Conference Proceedings (1)
- Curved surfaces (1)
- Decoupled decoding (1)
- Finite volume (1)
- Finite volume methods (1)
- Laplace–Beltrami operator (1)
- Maximum-likelihood decoding (1)
- Parabolic PDEs (1)
- Pattern formation (1)
- Presentations (1)
- Quaternion orthogonal design (1)
- Shallow water equations (1)
- Space-time block code (1)
- Sphere (1)
- Well-balanced schemes (1)
Articles 1 - 16 of 16
Full-Text Articles in Physical Sciences and Mathematics
Counting Pattern-Avoiding Permutations, Lara Pudwell
Counting Pattern-Avoiding Permutations, Lara Pudwell
Lara K. Pudwell
No abstract provided.
An Introduction To Enumeration Schemes, Lara Pudwell
An Introduction To Enumeration Schemes, Lara Pudwell
Lara K. Pudwell
No abstract provided.
Simplify, Cancel, And Other Math Lingo With Multiple Meanings, Lisa Yocco
Simplify, Cancel, And Other Math Lingo With Multiple Meanings, Lisa Yocco
Lisa S. Yocco
No abstract provided.
Logically Rectangular Finite Volume Methods With Adaptive Refinement On The Sphere, Marsha Berger, Donna Calhoun, Christiane Helzel, Randall Leveque
Logically Rectangular Finite Volume Methods With Adaptive Refinement On The Sphere, Marsha Berger, Donna Calhoun, Christiane Helzel, Randall Leveque
Donna Calhoun
The logically rectangular finite volume grids for two-dimensional partial differential equations on a sphere and for three-dimensional problems in a spherical shell introduced recently have nearly uniform cell size, avoiding severe Courant number restrictions. We present recent results with adaptive mesh refinement using the GEOCLAW software and demonstrate well-balanced methods that exactly maintain equilibrium solutions, such as shallow water equations for an ocean at rest over arbitrary bathymetry.
Counting Pattern-Avoiding Permutations, Lara Pudwell
Counting Pattern-Avoiding Permutations, Lara Pudwell
Lara K. Pudwell
No abstract provided.
Non-Smooth Solutions To Least Squares Problems, Jodi Mead
Non-Smooth Solutions To Least Squares Problems, Jodi Mead
Jodi Mead
In an attempt to overcome the ill-posedness or illconditioning of inverse problems, regularization methods are implemented by introducing assumptions on the solution. Common regularization methods include total variation, L-curve, Generalized Cross Validation (GCV), and the discrepancy principle. It is generally accepted that all of these approaches except total variation unnecessarily smooth solutions, mainly because the regularization operator is in an L2 norm. Alternatively, statistical approaches to ill-posed problems typically involve specifying a priori information about the parameters in the form of Bayesian inference. These approaches can be more accurate than typical regularization methods because the regularization term is weighted with …
Problem #3468, Stan Wagon, Peter Saltzman, Joseph Devincentis
Problem #3468, Stan Wagon, Peter Saltzman, Joseph Devincentis
Stan Wagon, Retired
No abstract provided.
On The Issue Of Decoupled Decoding Of Codes Derived From Quaternion Orthogonal Designs, Tadeusz Wysocki, Beata Wysocki, Sarah Spence Adams
On The Issue Of Decoupled Decoding Of Codes Derived From Quaternion Orthogonal Designs, Tadeusz Wysocki, Beata Wysocki, Sarah Spence Adams
Sarah Spence Adams
Quaternion orthogonal designs (QODs) have been previously introduced as a basis for orthogonal space-time polarization block codes (OSTPBCs). This note will serve to correct statements concerning the optimality of a decoupled maximum-likelihood (ML) decoding algorithm. It will be shown that when compared to coupled decoding, the decoupled decoding is only optimal in certain cases. This raises several open problems concerning the decoding of OSTPBCs.
Paradigms For Non-Classical Substitutions, Lawrence Stout, P. Eklund, M. Galan, J. Kortelainen
Paradigms For Non-Classical Substitutions, Lawrence Stout, P. Eklund, M. Galan, J. Kortelainen
Lawrence N. Stout
We will present three paradigms for non-classical substitution. Firstly, we have the classical substitution of variables with terms. This is written in a strict categorical form supporting presentation of the other two paradigms. The second paradigm is substitutions of variables with many-valued sets of terms. These two paradigms are based on functors and monads over the category of sets. The third paradigm is the substitution of many-valued sets of variables with terms over many-valued sets of variables. The latter is based on functors and monads over the category of many-valued sets. This provides a transparency of the underlying categories and …
Using The Ti-Nspire As A Tool To Explore Real Applications, Lisa Yocco
Using The Ti-Nspire As A Tool To Explore Real Applications, Lisa Yocco
Lisa S. Yocco
No abstract provided.
Look Behind The Scenes With The Ti-Nspire, Lisa Yocco
Look Behind The Scenes With The Ti-Nspire, Lisa Yocco
Lisa S. Yocco
No abstract provided.
An Introduction To Enumeration Schemes, Lara Pudwell
An Introduction To Enumeration Schemes, Lara Pudwell
Lara K. Pudwell
No abstract provided.
Enumeration Schemes For Permutations Avoiding Barred Patterns, Lara Pudwell
Enumeration Schemes For Permutations Avoiding Barred Patterns, Lara Pudwell
Lara K. Pudwell
No abstract provided.
A Finite Volume Method For Solving Parabolic Equations On Logically Cartesian Curved Surface Meshes, Donna Calhoun, Christiane Helzel
A Finite Volume Method For Solving Parabolic Equations On Logically Cartesian Curved Surface Meshes, Donna Calhoun, Christiane Helzel
Donna Calhoun
We present a second-order, finite-volume scheme for the constant-coefficient diffusion equation on curved, parametric surfaces described via smooth or piecewise smooth mappings on logically Cartesian meshes. Our method does not require analytic metric terms, shows second-order accuracy, can be easily coupled to existing finite-volume solvers for logically Cartesian meshes and handles general mixed boundary conditions. We present numerical results demonstrating the accuracy of the scheme, and then use the scheme to solve advection-reaction-diffusion equations modeling biological pattern formation on surfaces.
Geometric Ergodicity Of Gibbs Samplers (University Of Minnesota), Alicia Johnson
Geometric Ergodicity Of Gibbs Samplers (University Of Minnesota), Alicia Johnson
Alicia A. Johnson
No abstract provided.
Using A Personal Response System, John Hawkins, Bruce Mclean
Using A Personal Response System, John Hawkins, Bruce Mclean
John B. Hawkins
Over the years, we have consistently used the latest technology in our classes. It has made us more organized and has increased the understanding of our students. Now we have combined our old presentations and drawings from the past and placed them in PowerPoint presentations with imbedded questions. These questions can be multiple choice or questions that have numerical answers. Our University has settled upon one company to provide a personal response system, eInstruction’s Classroom Performance System (CPS). The students answer each question as it appears and we are able to evaluate our lectures in real time. Applets can still …