Results 121 to 130 of about 7,558 (300)
Nonnegative Infinite Matrices that Preserve (p,q)-Convexity of Sequences
Abstract and Applied Analysis, 2017 This paper deals with matrix transformations that preserve the (p,q)-convexity of sequences. The main result gives the necessary and sufficient conditions for a nonnegative infinite matrix A to preserve the (p,q)-convexity of sequences.
Chikkanna R. Selvaraj, Suguna Selvaraj
doaj +1 more source
Realizability by symmetric nonnegative matrices
, 2017 Let ? = {?1, ?2,...,?n} be a set of complex numbers. The nonnegative inverse eigenvalue problem (NIEP) is the problem of determining necessary and sufficient conditions in order that ? may be the spectrum of an entrywise nonnegative n × n matrix.
Soto Montero, Ricardo Lorenzo
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Groundwater Monitoring &Remediation, EarlyView.Abstract The long‐term and frequent sampling of groundwater monitoring networks is common practice for monitoring the concentrations of constituents of potential concern (CoPC) over space and time. Sampling can be a costly and time‐intensive process that also incurs health and safety risks. A redundancy‐based ranking of candidate sampling locations can
Peter Radvanyi +5 more
wiley +1 more source
Nonnegative splittings for rectangular matrices
Computers & Mathematics with Applications, 2014 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
When in Doubt, Tax More Progressively? Uncertainty and Progressive Income Taxation
International Economic Review, EarlyView.ABSTRACT We study the optimal income tax problem under parameter uncertainty about household preferences and wage dynamics. We derive conditions characterizing how such uncertainty affects optimal tax policy. To quantify the effect, we estimate a life‐cycle model using US data and a Bayesian approach.
Minsu Chang, Chunzan Wu
wiley +1 more source
, 1993 A structural characterization is given for the class of those nonnegative matrices for which the transpose is a polynomial in the matrix with the polynomial having nonnegative coefficients and no constant ...
S.K. Jain +3 more
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The Legacy of Policy Inaction in Climate‐Growth Models
International Economic Review, EarlyView.ABSTRACT To better understand the structure and core mechanisms of a broad class of climate‐growth models, we study a simplified version of the dynamic integrated model of climate and the economy (DICE) through the lens of growth theory. We analytically show that this model features a continuum of saddle‐point stable steady states.
Thomas Steger, Timo Trimborn
wiley +1 more source
Matrix Roots of Nonnegative and Eventually Nonnegative Matrices
, 2013 Thesis (Ph.D.), Department of Mathematics, Washington State UniversityEventually nonnegative matrices are real matrices whose powers become and remain nonnegative.
Paparella, Pietro
core
Nonnegative spectraloid matrices
, 1981 Several characterizations are given for certain nonnegative matrices having equal spectral and numerical radii.
Emeric Deutsch, Deutsch, Emeric
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International Statistical Review, EarlyView.Summary Understanding the spread of infectious diseases such as COVID‐19 is crucial for informed decision‐making and resource allocation. A critical component of disease behaviour is the velocity with which disease spreads, defined as the rate of change between time and space.
Fernando Rodriguez Avellaneda +2 more
wiley +1 more source