UNT College of Arts and Sciences - 69 Matching Results

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On the exact solution of certain generic nonlinear polynomial systems with cyclic symmetry

This article examines how in view of the fundamental theorem of algebra and basic Galois theory solving nonlinear systems of polynomial equations exactly means in general reducing them to one single equation in one variable.

Date: 2011

Creator: Anghel, Nicolae

Item Type: Article

open access

Magnetic Schröodinger operators with discrete spectra on non-compact Kähler manifolds

This article identifies a class of magnetic Schrödinger operators on Kähler manifolds which exhibit pure point spectrum.

Date: May 17, 2013

Creator: Anghel, Nicolae

Item Type: Article

open access

On Bär's Conformal Lower Bound for the Spectrum of Generalized Dirac Operators

Article discussing Bär's conformal lower bound for the spectrum of generalized Dirac operators.

Date: 2000

Creator: Anghel, Nicolae

Item Type: Article

open access

Determinant Identities and the Geometry of Lines and Circles

This article focuses on the nontrivial determinant identities which typically underlie the complex analytic proofs of all the results in the plane geometry of lines and circles.

Date: October 20, 2015

Creator: Anghel, Nicolae

Item Type: Article

open access

Polynomial Harmonic Decompositions

Article on polynomial harmonic decompositions. For real polynomials in two indeterminates a classical polynomial harmonic decomposition is extended from square-norm divisors to conic ones.

Date: January 2017

Creator: Anghel, Nicolae

Item Type: Article

open access

On a class of Stieltjes-Van Vleck polynomials

Article on a class of Stieltjes-Van Vleck polynomials.

Date: 2013

Creator: Anghel, Nicolae

Item Type: Article

open access

Epilepsy Detection Using EEG with Different Time Frames

This article analyzes and classifies EEG signals using wavelets decomposition and support vector machines (SVM).

Date: 2016

Creator: Liu, Jianguo

Item Type: Article

open access

Reflectionless Boundary Propagation Formulas for Partial Wave Solutions to the Wave Equation

This article considers solutions to the wave equation in 3+1 spacetime dimensions whose data is compactly supported at some initial time.

Date: November 28, 1995

Creator: Navarro, Jaime & Warchall, Henry A.

Item Type: Article

open access

Projecting on Polynomial Dirac Spinors

In this paper, the authors adapt Axler and Ramey's method of constructing the harmonic part of a homogeneous polynomial to the Fischer decomposition associated to Dirac operators acting on polynomial spinors.

Date: June 2006

Creator: Anghel, Nicolae

Item Type: Paper

open access

Lie Generators for Semigroups of Transformations on a Polish Space

This article characterizes the infinitesimal generators of semigroups of linear transformations.

Date: August 27, 1993

Creator: Dorroh, J. R. & Neuberger, J. W.

Item Type: Article

open access

Spreading of Charged Micro-Droplets

This article studies the spreading of a charged microdroplet using the lubrication approximation.

Date: September 16, 2013

Creator: Iaia, Joseph A.

Item Type: Article

open access

Newton’s Method in the Context of Gradients

This article gives a common theoretical treatment for gradient and Newton type methods for general classes of problems.

Date: September 24, 2007

Creator: Karátson, János & Neuberger, J. W.

Item Type: Article

open access

Numerical Calculation of Singularities for Ginzburg-Landau Functionals

This article gives results of numerical calculations of asymptotic behavior of critical points of a Ginzburg-Landau functional.

Date: June 18, 1997

Creator: Neuberger, J. W. & Renka, R. J.

Item Type: Article

open access

Existence of Solutions for Semilinear Problems With Prescribed Number of Zeros on Exterior Domains

This article proves the existence of an infinite number of radial solutions of Δ(u) + f(u) = 0 with prescribed number of zeros on the exterior of the ball of radius R > 0 centered at the origin in ℝᴺ where f is odd with f < 0 on (0, β), f > 0 on (β,∞) where β > 0.

Date: May 3, 2016

Creator: Joshi, Janak & Iaia, Joseph A.

Item Type: Article

open access

Loitering at the hilltop on exterior domains

In this article, the author proves the existence of an infinite number of radial solutions of Δu+f(u)=0 on the exterior of the ball of radius R>0 centered at the origin and f is odd with f<0 on (0,β), f>0 on (β,δ), and f≡0 for u>δ. The primitive F(u)=∫u0f(t)dt has a "hilltop" at u=δ which allows one to use the shooting method and ODE techniques to prove the existence of solutions.

Date: November 23, 2015

Creator: Iaia, Joseph A.

Item Type: Article

open access

The Spreading of Charged Micro-Droplets

This article considers the analysis of the Betelu-Fontelos model of the spreading of a charged microdroplet on a at dielectric surface whose spreading is driven by surface tension and electrostatic repulsion.

Date: January 20, 2015

Creator: Iaia, Joseph A.

Item Type: Article

open access

Existence and Nonexistence of Solutions for Semilinear Equations on Exterior Domains

This article studies radial solutions of Δu + K(r)ƒ(u) = 0 on the exterior of the ball of radius R > 0 centered at the origin in ℝᴺ where ƒ is odd with ƒ < 0 on (0,ß), ƒ > 0 on (β, δ), ƒ ≡ 0 for u > δ, and where the function K(r) is assumed to be positive and K(r) → 0 as r → ∞.

Date: August 22, 2016

Creator: Iaia, Joseph A.

Item Type: Article

open access

Complex Continued Fractions With Restricted Entries

This article studies special infinite iterated function systems derived from complex continued fraction expansions with restricted entries.

Date: October 19, 1993

Creator: Hanus, Pawel & Urbański, Mariusz

Item Type: Article

open access

Detecting Evolutionary Strata on the Human X Chromosome in the Absence of Gametologous Y-Linked Sequences

Article on detecting evolutionary strata on the human X chromosome in the absence of gametologous Y-linked sequences.

Date: September 9, 2013

Creator: Pandey, Ravi Shanker; Sayres, Melissa A. Wilson & Azad, Rajeev K.

Item Type: Article

open access

Glucose or Altered Ceramide Biosynthesis Mediate Oxygen Deprivation Sensitivity Through Novel Pathways Revealed by Transcriptome Analysis in Caenorhabditis elegans

This article discusses how RNA-sequencing analysis was performed to assess how a glucose-supplemented diet and/or a hyl-2 mutation altered the transcriptome.

Date: August 5, 2016

Creator: Ladage, Mary L.; King, Skylar D.; Burks, David J.; Quan, Daniel L.; Garcia, Anastacia M.; Azad, Rajeev K. et al.

Item Type: Article

open access

Generalizarea problemei 0:59

This note extends a certain combinatorics problem of I. Tomescu.

Date: 1980

Creator: Anghel, Nicolae

Item Type: Article

open access

O generalizare a problemei piesei de 5 lei a lui Ţiţeica

The '5 lei coin' problem of Titeica is generalized to circles of arbitrary radii.

Date: 2012

Creator: Anghel, Nicolae

Item Type: Article

open access

Legătura dintre sumele Stieltjes şi sumele simetrice elementare

Article discussing studies of the relationship between the Stieltjes sums and the elementary symmetric sums.

Date: February 2012

Creator: Anghel, Nicolae

Item Type: Article

open access

Square roots of real 2 x 2 matrices

In this article, the author investigates the real 2 x 2 matrices which admit real square roots.

Date: November 2013

Creator: Anghel, Nicolae

Item Type: Article

UNT College of Arts and Sciences - 69 Matching Results

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On the exact solution of certain generic nonlinear polynomial systems with cyclic symmetry

Magnetic Schröodinger operators with discrete spectra on non-compact Kähler manifolds

On Bär's Conformal Lower Bound for the Spectrum of Generalized Dirac Operators

Determinant Identities and the Geometry of Lines and Circles

Polynomial Harmonic Decompositions

On a class of Stieltjes-Van Vleck polynomials

Epilepsy Detection Using EEG with Different Time Frames

Reflectionless Boundary Propagation Formulas for Partial Wave Solutions to the Wave Equation

Projecting on Polynomial Dirac Spinors

Lie Generators for Semigroups of Transformations on a Polish Space

Spreading of Charged Micro-Droplets

Newton’s Method in the Context of Gradients

Numerical Calculation of Singularities for Ginzburg-Landau Functionals

Existence of Solutions for Semilinear Problems With Prescribed Number of Zeros on Exterior Domains

Loitering at the hilltop on exterior domains

The Spreading of Charged Micro-Droplets

Existence and Nonexistence of Solutions for Semilinear Equations on Exterior Domains

Complex Continued Fractions With Restricted Entries

Detecting Evolutionary Strata on the Human X Chromosome in the Absence of Gametologous Y-Linked Sequences

Glucose or Altered Ceramide Biosynthesis Mediate Oxygen Deprivation Sensitivity Through Novel Pathways Revealed by Transcriptome Analysis in Caenorhabditis elegans

Generalizarea problemei 0:59

O generalizare a problemei piesei de 5 lei a lui Ţiţeica

Legătura dintre sumele Stieltjes şi sumele simetrice elementare

Square roots of real 2 x 2 matrices