Works Published in 2011
Displaying works 141 - 159 of 159 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2011 journal article
ERGODICITY COEFFICIENTS DEFINED BY VECTOR NORMS
SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, 32(1), 153–200.
Contributors: I. Ipsen & T. Selee
author keywords: singular values; eigenvalues; stochastic matrices; nonnegative matrices; inclusion regions; projections
TL;DR:
It is shown that ergodicity coefficients can determine inclusion regions for subdominant eigenvalues of complex matrices, and that the tightness of these regions depends on the departure of the matrix from normality.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities
(OpenAlex)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2011 journal article
Dual Carrier Probing for Spaceborne SAR Imaging
SIAM Journal on Imaging Sciences, 4(2), 501–542.
author keywords: synthetic aperture radar; Earth's ionosphere; dispersion of radio waves; image distortions; cold plasma; matched filter; multicarrier probing; correction of the filter; range and azimuthal resolution; image sharpness
TL;DR:
This work concludes that the deterioration of SAR images was due to the mismatch between certain parameters of the actual received signal, which is slowed down by the temporal dispersion in the ionosphere, and the corresponding parameter of the matched filter, which was taken as if the propagation were unobstructed.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018
2011 journal article
COMPUTING CHARACTERISTIC POLYNOMIALS FROM EIGENVALUES
SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, 32(1), 90–114.
Contributors: R. Rehman & I. Ipsen
author keywords: elementary symmetric functions; perturbation bounds; roundoff error bounds; determinant
TL;DR:
The roundoff error bounds imply that the Summation Algorithm is forward stable, and the running error bounds can be used to estimate the accuracy of the computed coefficients “on the fly,” and they tend to be less pessimistic than the round off error bounds.
(via Semantic Scholar)
citeseerx.ist.psu.edu (repository)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2011 journal article
Adaptive mesh refinement for elliptic interface problems using the non-conforming immersed finite element method
International Journal of Numerical Analysis and Modeling, 8(3), 466–483.
Source: NC State University Libraries
Added: August 6, 2018
2011 journal article
A DETERMINISTIC METHODOLOGY FOR ESTIMATION OF PARAMETERS IN DYNAMIC MARKOV CHAIN MODELS
JOURNAL OF BIOLOGICAL SYSTEMS, 19(1), 71–100.
author keywords: Markov Chain Stochastic Models; Inverse Problems; Parameter Estimation; Parameter Selection; Large Population Sample Path Approximations
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
ROOT SEMIGROUPS IN REDUCTIVE MONOIDS
INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 21(3), 433–448.
author keywords: Reductive monoids; Jordan decomposition; root semigroups; root elements
TL;DR:
It is shown that the closure of the Borel subgroup is generated by the maximal torus and positive root semigroups, and the Jordan decomposition of algebraic groups to reductive monoids is generalized.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Efficient Parallel Computation of Molecular Potential Energy Surfaces for the Study of Light-Induced Transition Dynamics in Multiple Coordinates
IEEE TRANSACTIONS ON NANOTECHNOLOGY, 10(1), 70–74.
author keywords: Algorithm design and analysis; chemical sensors; 1H NMR; nanoelectonics; stibenes; UV-vis spectroscopy
TL;DR:
The research reported here will address the development of parallel computational algorithms that allow for the highly efficient study of molecular conformational dynamics over multiple numbers of multidimensional energy surfaces and will allow researchers to efficiently explore the light-induced conformation dynamics associated with complex biomolecules.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2011 journal article
Identifiability of Two-Tree Mixtures for Group-Based Models
IEEE-ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS, 8(3), 710–722.
author keywords: Phylogenetic mixture; group-based model; identifiability of phylogenetic models
MeSH headings : Algorithms; Computational Biology / methods; DNA / genetics; Databases, Nucleic Acid; Markov Chains; Models, Genetic; Models, Statistical; Phylogeny
TL;DR:
It is proved that generic substitution parameters for the JC mixture models are identifiable, and for the K2P and K3P models obtain generic identifiability results for mixtures on the same tree.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 article
Computational and phylogenetic validation of nematode horizontal gene transfer
Scholl, E. H., & Bird, D. M. K. (2011, February 22). BMC BIOLOGY, Vol. 9.
MeSH headings : Animals; Cellulase / genetics; Evolution, Molecular; Gene Transfer, Horizontal; Genes, Helminth; Molecular Sequence Data; Nematoda / classification; Nematoda / genetics; Phylogeny
TL;DR:
A detailed phylogenetic analysis of cellulase genes in the free-living nematode Pristionchus pacificus at the species, genus and family levels substantiates the hypothesis that such transfer has been a driving force in the evolution of niche specificity.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger
(Web of Science)
13. Climate Action
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
A finite element method for elasticity interface problems with locally modified triangulations
International Journal of Numerical Analysis and Modeling, 8(2), 189–200.
Source: NC State University Libraries
Added: August 6, 2018
2011 journal article
Generation of Dark-Bright Soliton Trains in Superfluid-Superfluid Counterflow
PHYSICAL REVIEW LETTERS, 106(6).
TL;DR:
The first experimental observation of trains of dark-bright solitons generated by the counterflow is presented, theoretically interpreted by three-dimensional numerical simulations for the coupled Gross-Pitaevskii equations and the analysis of a jump in the two relatively flowing components' densities.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
1. No Poverty
(Web of Science)
9. Industry, Innovation and Infrastructure
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Estimation of Cell Proliferation Dynamics Using CFSE Data
BULLETIN OF MATHEMATICAL BIOLOGY, 73(1), 116–150.
author keywords: Cell proliferation; CFSE; Label structured population dynamics; Partial differential equations; Inverse problems
MeSH headings : Cell Proliferation; Flow Cytometry / methods; Flow Cytometry / statistics & numerical data; Fluoresceins; Fluorescent Dyes; Humans; In Vitro Techniques; Least-Squares Analysis; Mathematical Concepts; Models, Biological; Models, Statistical; Succinimides
TL;DR:
These investigations suggest that the new decay/label loss and time dependent effective proliferation and death rates do indeed provide improved fits of the model to data, and should prove useful in proliferation assay tracking and modeling, with numerous applications in the biomedical sciences.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
A Jordan-Holder Theorem for differential algebraic groups
JOURNAL OF ALGEBRA, 328(1), 190–217.
author keywords: Differential algebra; Differential algebraic groups; Jordan-Holder Theorem; Linear partial differential equations
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
9. Industry, Innovation and Infrastructure
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Semiclassical dynamics of quasi-one-dimensional, attractive Bose-Einstein condensates
PHYSICS LETTERS A, 375(3), 726–732.
UN Sustainable Development Goal Categories
1. No Poverty
(Web of Science)
9. Industry, Innovation and Infrastructure
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Numerical strategies for filtering partially observed stiff stochastic differential equations
JOURNAL OF COMPUTATIONAL PHYSICS, 230(3), 744–762.
author keywords: Filtering multiscale systems; Data assimilation; Stiff SDE; Heterogeneous Multiscale Methods; Inverse problems
TL;DR:
It will be shown that the proposed micro-filter is equivalent to solving an inverse problem for parameterizing differential equations, and that this microscopic reinitialization is an important novel feature for accurate filtered solutions, especially when the microscopic dynamics is not mixing at all.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Identification of hazards with impulsive sources
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 88(4), 762–780.
author keywords: impulsive sources; Schur complement; nonnegative least squares; simulated annealing; nonlinear
TL;DR:
The complexities of controlling aquatic populations, which are nonlinear, time-dependent and have multiple sources, will be illustrated.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Equivalent forms of multi component Toda hierarchies
JOURNAL OF GEOMETRY AND PHYSICS, 61(4), 847–873.
author keywords: Lower and upper triangular Z x Z-matrices; Infinite dimensional Cauchy problem; Lax equations; Zero curvature form; Bilinear form
UN Sustainable Development Goal Categories
14. Life Below Water
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
A low communication and large time step explicit finite-volume solver for non-hydrostatic atmospheric dynamics
JOURNAL OF COMPUTATIONAL PHYSICS, 230(4), 1567–1584.
author keywords: Finite volume; Atmospheric dynamics; Non-hydrostatic; Riemann solver; Fully discrete; Flux vector splitting
TL;DR:
An explicit finite-volume solver is proposed for numerical simulation of non-hydrostatic atmospheric dynamics with promise for efficiency on massively parallel machines via low communication needs and large time steps and analysis suggests improvement of trajectory computations will improve error for large CFL numbers.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2011 journal article
SORTABLE ELEMENTS IN INFINITE COXETER GROUPS
TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 363(2), 699–761.
Contributors: N. Reading n & D. Speyer*
UN Sustainable Development Goal Categories
15. Life on Land
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
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