Browsing Faculty Works, Department of Mathematics by Title
Now showing items 179-198 of 225
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Scalings for fragments produced from drop breakup in shear flow with inertia
(American Institute of Physics, 2001-08)When a drop is sheared in a matrix liquid, the largest daughter drops are produced by elongative end pinching. The daughter drop size is found to scale with the critical drop size that would occur under the same flow ... -
scattering and inverse scattering in one-dimensional nonhomogeneous media
(AIP Publishing, 1992-05)The wave propagation in a one-dimensional nonhomogeneous medium is considered, where the wave speed and the restoring force depend on location. In the frequency domain this is equivalent to the Schrodinger equation d2-psi/dx2 ... -
semiclassical wave-packet scattering in one and two dimensions
(AIP Publishing, 2004-11)We prove that under short range potentials a semiclassical wave packet's propagation is accurate for infinite times in the (h) over bar -->0 limit. (C) 2004 American Institute of Physics. -
Short wave stability for inviscid shear flow
(Siam Publications, 2008)We consider the linear stability of inviscid shear flows. While it is well known that discontinuous velocity profiles lead to short wave instabilities and ill-posedness, known examples of instability for smooth profiles ... -
Simulating Within-Vector Generation of Malaria Parasite Diversity
(PLOS, 2017-05-22)Plasmodium falciparum, the most virulent human malaria parasite, undergoes asexual reproduction within the human host, but reproduces sexually within its vector host, the Anopheles mosquito. Consequently, the mosquito stage ... -
A singular perturbation study of the Rolie-Poly model
(2017-06-15) -
Small-energy analysis for the self-adjoint matrix Schrodinger operator on the half line
(AIP Publishing, 2011-10)The matrix Schrodinger equation with a self-adjoint matrix potential is considered on the half line with the most general self-adjoint boundary condition at the origin. When the matrix potential is integrable and has a ... -
Small-energy asymptotics of the scattering matrix for the matrix Schrodinger equation on the line
(AIP Publishing, 2001-10)The one-dimensional matrix Schrodinger equation is considered when the matrix potential is self-adjoint with entries that are integrable and have finite first moments. The small-energy asymptotics of the scattering ... -
solution of multigroup transport equation in Lp spaces
(AIP Publishing, 1976-11)The isotropic multigroup transport equation is solved in L p , p_1, for both half range and full range problems, using resolvent integration techniques. The connection between these techniques and a spectral decomposition ... -
Solutions and optimality criteria to box constrained nonconvex minimization problems
(American Institute of Mathematical Sciences, 2007-05-01)The design of elastic structures to optimize strength and economy of materials is a fundamental problem in structural engineering and related areas of applied mathematics. In this article we explore a finite dimensional ... -
Solving the Ginzburg-Landau equations by finite-element methods
(American Physical Society, 1992-10)We consider finite-element methods for the approximation of solutions of the Ginzburg-Landau equations of superconductivity. The methods are based on a discretization of the Euler-Lagrange equations resulting from the ... -
Sound-ultrasound interaction in bubbly fluids: Theory and possible applications
(American Institute of Physics, 2001-12)The interaction between sound and ultrasound waves in a weakly compressible viscous liquid with gas bubbles is considered. Using the method of multiple scales one- and two-dimensional nonlinear interaction equations are ... -
spectral properties of the Kronig-Penney Hamiltonian with a localized impurity
(AIP Publishing, 1989-06)It is shown that there exist bound states of the operator H ±λ=−(d 2/d x 2) +∑ m∈Z δ(⋅−(2m+1)π)±λW, W being an L 1(−∞,+∞) non‐negative function, in every sufficiently far gap of the spectrum of H 0=−d 2/d x 2 +∑ m∈Z ... -
Spontaneous penetration of a non-wetting drop into an exposed pore
(American Institute of Physics, 2013-05)We consider the penetration process of a liquid drop approaching an exposed pore along the axis of symmetry, which is intended to model the penetration of non-wetting drops into a porous medium. Inertia and gravity are ... -
stability of a layer of viscous magnetic fluid-flow down an inclined plane
(AIP Publishing, 1994-10)This paper concerns the linear stability of a layer of viscous magnetic fluid flow down an inclined plane under the influence of gravity and a tangential magnetic field. The stability of a magnetic fluid in a three-dimensional ... -
Stability of shear banded flow for a viscoelastic constitutive model with thixotropic yield stress behavior
(2017-02-15)oral presentation. Abstract published online. -
Stabilizing gene regulatory networks through feedforward loops
(American Institute of Physics, 2013-06)The global dynamics of gene regulatory networks are known to show robustness to perturbations in the form of intrinsic and extrinsic noise, as well as mutations of individual genes. One molecular mechanism underlying this ... -
Stochastic dynamics of Ginzburg-Landau vortices in superconductors
(American Physical Society, 2001-08-01)Thermal fluctuations and randomly distributed defects in superconductors are modeled by stochastic variants of the time-dependent Ginzburg-Landau equations. Numerical simulations are used to compare the effects of additive ...