Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- TÜBİTAK (2494)
- Claremont Colleges (1815)
- Selected Works (1382)
- University of New Mexico (803)
- University of the Pacific (773)
-
- Louisiana State University (745)
- University of Texas at El Paso (620)
- University of Texas Rio Grande Valley (578)
- University of Texas at Arlington (540)
- Missouri University of Science and Technology (507)
- Georgia Southern University (498)
- Utah State University (482)
- Indian Statistical Institute (457)
- University of Montana (426)
- University of South Florida (411)
- Marquette University (394)
- University of Nebraska - Lincoln (366)
- Taylor University (349)
- Technological University Dublin (346)
- City University of New York (CUNY) (335)
- University of Dayton (319)
- Prairie View A&M University (303)
- Old Dominion University (289)
- Portland State University (287)
- Chapman University (282)
- University of Richmond (264)
- Smith College (259)
- Brigham Young University (256)
- Wayne State University (233)
- California State University, San Bernardino (232)
- Keyword
-
- Mathematics (1129)
- Technical Reports (345)
- UTEP Computer Science Department (345)
- Algebra (264)
- Statistics (202)
-
- Calculus (197)
- Mathematics Research (196)
- Graph theory (173)
- Geometry (168)
- Math (156)
- Algorithms (151)
- Combinatorics (150)
- Optimization (126)
- Differential equations (122)
- Computer science (118)
- Neutrosophic logic (116)
- Probability (110)
- Stability (107)
- Pure sciences (105)
- Topology (100)
- Education (99)
- Published Research Papers (94)
- Number theory (92)
- Polynomials (84)
- Graphs (75)
- Machine learning (73)
- Mathematics education (71)
- Cryptography (69)
- Banach spaces (63)
- Modeling (62)
- Publication Year
- Publication
-
- Turkish Journal of Mathematics (2494)
- Mathematics Faculty Publications (690)
- Branch Mathematics and Statistics Faculty and Staff Publications (679)
- All Works by Eneström Number (666)
- Theses and Dissertations (651)
-
- Journal of Humanistic Mathematics (586)
- Departmental Technical Reports (CS) (531)
- Electronic Theses and Dissertations (454)
- Doctoral Theses (451)
- School of Mathematical and Statistical Sciences Faculty Publications and Presentations (440)
- Communications on Stochastic Analysis (429)
- The Mathematics Enthusiast (411)
- Humanistic Mathematics Network Journal (409)
- Mathematics and Statistics Faculty Publications (406)
- Daryl Bagley (374)
- Mathematics and Statistics Faculty Research & Creative Works (353)
- All HMC Faculty Publications and Research (352)
- Mathematics Technical Papers (343)
- Mathematics, Statistics and Computer Science Faculty Research and Publications (321)
- Articles (316)
- Applications and Applied Mathematics: An International Journal (AAM) (302)
- Faculty Publications (283)
- Dissertations (268)
- Honors Theses (249)
- Doctoral Dissertations (238)
- Department of Mathematics: Faculty Publications (218)
- Department of Mathematical Sciences Faculty Publications (194)
- Mathematics, Physics, and Computer Science Faculty Articles and Research (189)
- Mathematics (186)
- Undergraduate Journal of Mathematical Modeling: One + Two (180)
- Publication Type
Articles 21571 - 21600 of 27475
Full-Text Articles in Physical Sciences and Mathematics
A Stochastic Calculus For Systems With Memory, Feng Yan, Salah-Eldin A. Mohammed
A Stochastic Calculus For Systems With Memory, Feng Yan, Salah-Eldin A. Mohammed
Articles and Preprints
For a given stochastic process X, its segment Xt at time t represents the "slice" of each path of X over a fixed time-interval [t-r, t], where r is the length of the "memory" of the process. Segment processes are important in the study of stochastic systems with memory (stochastic functional differential equations, SFDEs). The main objective of this paper is to study non-linear transforms of segment processes. Towards this end, we construct a stochastic integral with respect to the Brownian segment process. The difficulty in this construction is the fact that the …
Introduction (2005), Association Of Christians In The Mathematical Sciences
Introduction (2005), Association Of Christians In The Mathematical Sciences
ACMS Conference Proceedings 2005
Fifteenth Conference of the Association of Christians in the Mathematical Sciences
Ramanujan And The Regular Continued Fraction Expansion Of Real Numbers, James Mclaughlin, Nancy Wyshinski
Ramanujan And The Regular Continued Fraction Expansion Of Real Numbers, James Mclaughlin, Nancy Wyshinski
Mathematics Faculty Publications
In some recent papers, the authors considered regular continued fractions of the form [a0; a, · · · , a | {z } m , a2 , · · · , a2 | {z } m , a3 , · · · , a3 | {z } m , · · · ], where a0 ≥ 0, a ≥ 2 and m ≥ 1 are integers. The limits of such continued fractions, for general a and in the cases m = 1 and m = 2, were given as ratios of certain infinite series. However, these formulae can be derived …
Wavelet Analysis Of Magnetometer Data, Inga Maslova
Wavelet Analysis Of Magnetometer Data, Inga Maslova
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
The wavelet analysis of the ground-based magnetograms' records is performed in this project. We explore the records from low, medium and high latitude stations during a calm period and a stormy one. Different methods for detecting and estimating the tail index of heavy-tailed distributions are compared. A detailed analysis of the properties of the distributions of the discrete wavelet transform coefficients of magnetometer data is presented. Conclusions on the tail index estimation techniques and the distribution of the discrete wavelet transform coefficients are made.
Determining The Effects Of Psychosocial Interventions On Quality Of Life For Cancer Patients: Analysis Of Pilot Data And Recommendations For Full Experimental Design And Statistical Analysis, Sarah Julia Thomas
Renée Crown University Honors Thesis Projects - All
The Hematology and Oncology Specialists Foundation plans to carry out a scientific study to assess the effects of several of its psychosocial interventions, or “wellness programs,” on the quality of life (QoL) experienced by cancer patients. Pilot data showed that participation in a meditation program significantly reduced the symptoms of stress experienced by the patients (t = 2.70, p = 0.011), and that participation in psychological counseling significantly reduced the anxiety and depression levels of the patients (t = 5.33, p = 0.002; t = 8.70, p < 0.001, respectively).
The full scale study has a 6×2 factorial design with six treatments (non-participation, …
Using Wavelets As A Computational And Theoretical Tool For Homogenization, Laura Lee Watkins
Using Wavelets As A Computational And Theoretical Tool For Homogenization, Laura Lee Watkins
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Since the cost of petroleum fluctuates widely, it is advisable to optimize extraction of oil and other hydrocarbon products form existing oil reserves. Because of the costs involved in recovering oil from a reservoir, predicting reservoir performance can be a useful tool for determining whether continued extraction might be profitable. This can be done using computer simulations of the physical processes involved such as pressure/head, fluid velocities, and so forth. Fluid flow within a reservoir occurs at a very small scale relative to the size of the reservoir. This size difference makes performing simulations at the physically appropriate scale unfeasible. …
Analysis Of Economic Models Through Calculus Of Variations, Raman Arora
Analysis Of Economic Models Through Calculus Of Variations, Raman Arora
Masters Theses & Specialist Projects
This thesis is a combination of two science fields: Mathematics and Economics. Mathematics is often used to formulate a clear and concise solution to economic problems. In my observation calculus of variation has often been used in various macroeconomic problems. This mathematical method deals with maximizing or minimizing of various objective functions given a set of constraints. This topic brings out one of the best ways to show the relationship between mathematics and economics. My thesis consists of three parts: The first chapter contains a review of the calculus of variations. Basic definitions and important conditions have been stated. The …
Hand-Held Calculators And Mathematics Achievement: What The 1996 National Assessment Of Educational Progress Eighth-Grade Mathematics Exam Scores Tell Us, Kenneth L. Wareham
Hand-Held Calculators And Mathematics Achievement: What The 1996 National Assessment Of Educational Progress Eighth-Grade Mathematics Exam Scores Tell Us, Kenneth L. Wareham
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The purpose of this study was to analyze the 1996 National Assessment of Educational Progress data to identify the relationship between calculator use and student performance on the National Assessment of Educational Progress Mathematics Assessment. This general purpose includes several sub issues. In addition to being interested in the overall relationship between use and National Assessment of Educational Progress achievement (including the effort to control for spurious factors), this study examined the contextual factors that moderate the impact of calculator use. Similarly, it analyzed the relationship between calculator use and student performance on calculator-allowed and calculator-restricted items, as well as …
Estimation, Testing, And Monitoring Of Generalized Autoregressive Conditionally Heteroskedastic Time Series, Aonan Zhang
Estimation, Testing, And Monitoring Of Generalized Autoregressive Conditionally Heteroskedastic Time Series, Aonan Zhang
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
We study in this dissertation Generalized Autoregressive Conditionally Heteroskedastic (GARCH) time series. The research focuses on squared GARCH sequences. Our main results are as follows:
1. We compare three methods of constructing confidence intervals for sample autocorrelations of squared returns modeled by models from the GARCH family. We compare the residual bootstrap, block bootstrap and subsampling methods. The residual bootstrap based on the standard GARCH(l,1) model is seen to perform best. Confidence intervals for cross-correlations of a bivariate GARCH model are also studied.
2. We study a test to discriminate between long memory and volatility changes in financial returns data. …
A Family Of Matrix Representations Of The Figure Eight Knot Group, Marvalisa M. Payne
A Family Of Matrix Representations Of The Figure Eight Knot Group, Marvalisa M. Payne
Masters Theses
An exact computation is given of a new 1-parameter family of SL(4,R) representations of the figure eight knot group.
If F(X) =∫X2x F(T) Dt Is Constant, Must F(T) = C/T ?, Tian-Xiao He
If F(X) =∫X2x F(T) Dt Is Constant, Must F(T) = C/T ?, Tian-Xiao He
Tian-Xiao He
No abstract provided.
Set Differential Equations With Causal Operators, Zahia Drici
Set Differential Equations With Causal Operators, Zahia Drici
Mathematics and System Engineering Faculty Publications
We obtain some basic results on existence, uniqueness, and continuous dependence of solutions with respect to initial values for set differential equations with causal operators.
Relative Difference Sets In 2-Groups : A Group Cohomological Viewpoint, Brian Wyman
Relative Difference Sets In 2-Groups : A Group Cohomological Viewpoint, Brian Wyman
Honors Theses
No abstract provided.
Some Nonparametric And Semiparametric Methods For Discriminant Analysis., Anil Kumar Ghosh Dr.
Some Nonparametric And Semiparametric Methods For Discriminant Analysis., Anil Kumar Ghosh Dr.
Doctoral Theses
Discriminant analysis (see e.g., Devijver and Kittler, 1982; Duda, Hart and Stork, 2000; Hastle, Tibahirani and Friedman, 2001) deals with the separation of different groups of obaervationa and allocation of a new oboervation to one of the previously delined grouga. In a J-class discriminant analysis problem, we usually hae a training sample of the form {(xk, ck) : k = 1,2,...,N}, where xk = (Ik1,Ik2,...J) is a d-dimensional measarement vector, and ca € {1,2,...,J} is its class label. On the basis of thia training sample, one aims to form a decision rule d(x) : Rd + (1,2,...,J} for clasifying the …
Ecological Niching In An Interactive Simulation, Ryan T. Webb
Ecological Niching In An Interactive Simulation, Ryan T. Webb
Honors Theses
Our goal is to create a simulation platform for the study of ecological niching that can be extended to suit the needs of biological research. Ecological niching and the accompanying evolutionary process of speciation are difficult to observe in situ, which makes them prime candidates for study via the methods of computer simulation. To this end, we have created an interactive, real-time ecosystem simulation based on the standard predator/prey interaction model, in which interacting populations of organisms exhibit swarming behavior. We hope to provide the basic simulation components necessary to bring about niching and speciation, that may be extended for …
A Structure Theorem For Stationary Perfect Fluids, Brendan Guilfoyle
A Structure Theorem For Stationary Perfect Fluids, Brendan Guilfoyle
Preprints
It is proven that, under mild physical assumptions, an isolated stationary relativistic perfect fluid consists of a finite number of cells fibred by invariant annuli or invariant tori. For axially symmetric circular flows it is shown that the fluid consists of cells fibred by rigidly rotating annuli or tori.
Local Theory Of Almost Split Sequences For Comodules, William Chin, Mark Kleiner, Declan Quinn
Local Theory Of Almost Split Sequences For Comodules, William Chin, Mark Kleiner, Declan Quinn
Mathematics - All Scholarship
We show that almost split sequences in the category of comodules over a coalgebra with finite-dimensional right-hand term are direct limits of almost split sequences over finite dimensional subcoalgebras. In previous work we showed that such almost split sequences exist if the right hand term has a quasifinitely copresented linear dual. Conversely, taking limits of almost split sequences over finte-dimensional comodule categories, we then show that, for countable-dimensional coalgebras, certain exact sequences exist which satisfy a condition weaker than being almost split, which we call ``finitely almost split''. Under additional assumptions, these sequences are shown to be almost split in …
Nonautonomous Beverton-Holt Equations And The Cushing-Henson Conjectures, Saber Elaydi, Robert J. Sacker
Nonautonomous Beverton-Holt Equations And The Cushing-Henson Conjectures, Saber Elaydi, Robert J. Sacker
Mathematics Faculty Research
In [3] Jim Cushing and Shandelle Henson published two conjectures (see Section 3) related to the Beverton-Holt difference equation (with growth parameter exceeding one), which said that the B-H equation with periodically varying coefficients (a) will have a globally asymptotically stable periodic solution and (b) the average of the state variable along the periodic orbit will be strictly less than the average of the carrying capacities of the individual maps. They had previously [2] proved both statements for period 2.
Double Arrays, Triple Arrays And Balanced Grids, John P. Mcsorley, Nicholas C. Phillips, Walter D. Wallis, Joseph L. Yucas
Double Arrays, Triple Arrays And Balanced Grids, John P. Mcsorley, Nicholas C. Phillips, Walter D. Wallis, Joseph L. Yucas
Articles and Preprints
Triple arrays are a class of designs introduced by Agrawal in 1966 for two-way elimination of heterogeneity in experiments. In this paper we investigate their existence and their connection to other classes of designs, including balanced incomplete block designs and balanced grids.
Spaces Of Polygons In The Plane And Morse Theory, Don H. Shimamoto, C. Vanderwaart
Spaces Of Polygons In The Plane And Morse Theory, Don H. Shimamoto, C. Vanderwaart
Mathematics & Statistics Faculty Works
No abstract provided.
Obstruction Sets For Classes Of Cubic Graphs, Joshua Hughes
Obstruction Sets For Classes Of Cubic Graphs, Joshua Hughes
Doctoral Dissertations
This dissertation establishes two theorems which characterize the set of minimal obstructions for two classes of graphs. A minimal obstruction for a class of graphs is a graph that is not in the class but every graph that it properly contains, under some containment relation, is in the class. In Chapter 2, we provide a characterization of the class of cubic outer-planar graphs in terms of its minimal obstructions which are also called cubic obstructions in this setting. To do this, we first show that all the obstructions containing loops can be obtained from the complete set of loopless obstructions …
Developing A B -Tagging Algorithm Using Soft Muons At Level-3 For The Dø Detector At Fermilab, Mayukh Das
Developing A B -Tagging Algorithm Using Soft Muons At Level-3 For The Dø Detector At Fermilab, Mayukh Das
Doctoral Dissertations
The current data-taking phase of the DØ detector at Fermilab, called Run II, is designed to aid the search for the Higgs Boson. The neutral Higgs is postulated to have a mass of 117 GeV. One of the channels promising the presence of this hypothetical particle is through the decay of b-quark into a muon. The process of identifying a b-quark in a jet using muon as a reference is b-tagging with a muon tag.
At the current data taking and analysis rate, it will take long to reach the process of identifying valid events. The triggering mechanism of the …
Lower Bounds For Simplicial Covers And Triangulations Of Cubes, Adam Bliss '03, Francis E. Su
Lower Bounds For Simplicial Covers And Triangulations Of Cubes, Adam Bliss '03, Francis E. Su
All HMC Faculty Publications and Research
We show that the size of a minimal simplicial cover of a polytope P is a lower bound for the size of a minimal triangulation of P, including ones with extra vertices. We then use this fact to study minimal triangulations of cubes, and we improve lower bounds for covers and triangulations in dimensions 4 through at least 12 (and possibly more dimensions as well). Important ingredients are an analysis of the number of exterior faces that a simplex in the cube can have of a specified dimension and volume, and a characterization of corner simplices in terms of their …
A Mathematical Model For Treatment-Resistant Mutations Of Hiv, Helen Moore, Weiqing Gu
A Mathematical Model For Treatment-Resistant Mutations Of Hiv, Helen Moore, Weiqing Gu
All HMC Faculty Publications and Research
In this paper, we propose and analyze a mathematical model, in the form of a system of ordinary differential equations, governing mutated strains of human immunodeficiency virus (HIV) and their interactions with the immune system and treatments. Our model incorporates two types of resistant mutations: strains that are not responsive to protease inhibitors, and strains that are not responsive to reverse transcriptase inhibitors. It also includes strains that do not have either of these two types of resistance (wild-type virus) and strains that have both types. We perform our analysis by changing the system of ordinary differential equations (ODEs) to …
Actions Of Sl(N,Z) On Homology Spheres, Kamlesh Parwani
Actions Of Sl(N,Z) On Homology Spheres, Kamlesh Parwani
Faculty Research and Creative Activity
Any continuous action of SL(n,Z), where n > 2, on a r-dimensional mod 2 homology sphere factors through a finite group action if r < n - 1. In particular, any continuous action of SL(n+2,Z) on the n-dimensional sphere factors through a finite group action.
Actions Of Sl(N,Z) On Homology Spheres, Kamlesh Parwani
Actions Of Sl(N,Z) On Homology Spheres, Kamlesh Parwani
Faculty Research and Creative Activity
Any continuous action of SL(n,Z), where n > 2, on a r-dimensional mod 2 homology sphere factors through a finite group action if r < n - 1. In particular, any continuous action of SL(n+2,Z) on the n-dimensional sphere factors through a finite group action.
The Slope Mean And Its Invariance Properties, Jun Ji, Charles Kicey
The Slope Mean And Its Invariance Properties, Jun Ji, Charles Kicey
Faculty Articles
Discusses the slope mean and its invariance properties. Notion of invariance; Comparison of linear regression methods; Comparison with classic means; Characterization by invariance; Focus on quasi-arithmetic means; Theorems used.
Gutstein Generalized- A Philosophical Debate: A Critical Commentary On Gutstein's (2003) Thesis For The Incorporation Of Social Justice In The Mathematics Curriculum, Seth Braver, Jane Micklus, Sheila Bradley, Hillary Van Spronsen, Samantha Allen, Vicki Campbell
Gutstein Generalized- A Philosophical Debate: A Critical Commentary On Gutstein's (2003) Thesis For The Incorporation Of Social Justice In The Mathematics Curriculum, Seth Braver, Jane Micklus, Sheila Bradley, Hillary Van Spronsen, Samantha Allen, Vicki Campbell
The Mathematics Enthusiast
The Scene: A Courtroom
The Year: 2004 (old style), 15 (new style - After Standards)
The Grand Inquisitor mounts the podium, and addresses the Debaters standing silently before him. A large crowd fills the hall.
Inquisitor:
Ladies and Gentlemen! You have been summoned here today to present the final arguments for and against these propositions which have so vexed our society in recent months. Each of you represents a vision of the future of mathematics education. Ere the sun sets we shall fix our resolve to one vision or the other. The victors, I doubt not, shall lead us into …
Editorial, Bharath Sriraman
A Numerical Method For Obtaining An Optimal Temperature Distribution In A 3d Triple-Layered Cylindrical Skin Structure, Le Zhang
Doctoral Dissertations
In recent years, it has been interesting to research hyperthermia combined with radiation and cytotoxic drugs to enhance the killing of tumors. The crucial problem is that when heating the tumor tissues, one needs to keep the surrounding normal tissue below a temperature that will produce harm. Thus, it is important to obtain the temperature field of the entire treatment region. The objective of this dissertation is to develop a numerical model for obtaining an optimal temperature distribution in a 3D triple-layered cylindrical skin structure. To this end, we pre-specify the temperatures to be obtained at the center and perimeter …