Browsing Research Articles (Mathematical Sciences) by Title
Now showing items 5271 of 79

On the validity of evolutionary models with sitespecific parameters
(PLoS, 20140410)Evolutionary models that make use of sitespecific parameters have recently been criticized on the grounds that parameter estimates obtained under such models can be unreliable and lack theoretical guarantees of convergence. ... 
An optimal proportion of mixing broadleaved forest for enhancing the effective productivity of moso bamboo
(John Wiley & Sons Ltd., 20150317)Moso bamboos (Phyllostachys edulis) are important forestry plants in southern China, with substantial roles to play in regional economic and ecological systems. Mixing broadleaved forests and moso bamboos is a common ... 
Parabolic curve fitting study subject to Joule heating in MHD thermally stratified mixed convection stagnation point flow of EyringPowell fluid induced by an inclined cylindrical surface
(Elsevier, 2018)The current analysis is carried out to envision the properties of magnetohydrodynamic boundary layer stagnation point flow of EyringPowell (nonNewtonian) fluid induced by an inclined stretching cylindrical surface in ... 
Partitioning the hypercube Qn into n isomorphic edgedisjoint trees
(TU Graz University of Technology, 2011)ENGLISH ABSTRACT: The problem of finding edgedisjoint trees in a hypercube e.g. arises in the context of parallel computing. Independent of applications it is of high aesthetic appeal. 
Paths vs. stars in the local prole of trees
(Electronic Journal of Combinatorics, 2017)The aim of this paper is to provide an affirmative answer to a recent question by Bubeck and Linial on the local profile of trees. 
Population dynamics and associated factors of cereal aphids and armyworms under global change
(Springer Nature, 20151222)Studying the impacts of global change, which comprises largely climate and landscape changes, on agricultural pests is crucial for developing sustainable pest management. This research is focused on understanding the ... 
Propertybased slicing for agent verification
(Oxford University Press (OUP), 200912)Programming languages designed specifically for multiagent systems represent a new programming paradigm that has gained popularity over recent years, with some multiagent programming languages being used in increasingly ... 
Protection number in plane trees
(University of Belgrade  School of Electrical Engineering, 201710)The protection number of a plane tree is the minimal distance of the root to a leaf; this definition carries over to an arbitrary node in a plane tree by considering the maximal subtree having this node as a root. We ... 
Quantifying multiplesite compositional turnover in an Afrotemperate forest, using zeta diversity
(SpringerOpen, 2018)Background: Species turnover is typically measured by partitioning diversity components into alpha and pairwise beta diversity. However, alpha and beta components cannot express the full spectrum of multiplesite ... 
Realization of abstract convex geometries by point configurations
(Elsevier, 201001)The EdelmanJamison problem is to characterize those abstract convex geometries that are representable by a set of points in the plane. We show that some natural modification of the EdelmanJamison problem is equivalent ... 
Representing derivatives of Chebyshev polynomials by Chebyshev polynomials and related questions
(De Gruyter, 2017)A recursion formula for derivatives of Chebyshev polynomials is replaced by an explicit formula. Similar formulae are derived for scaled Fibonacci numbers. 
Robustness of rigid and adaptive networks to species loss
(Public Library of Science, 2017)Controversies in the complexitystability debate have been attributed to the methodologies used such as topological vs. dynamical approaches or rigid vs. adaptive foraging behaviour of species. Here, we use a bipartite ... 
The seesaw effect of winter temperature change on the recruitment of cotton bollworms Helicoverpa armigera through mismatched phenology
(John Wiley & Sons Ltd., 2015)Knowing how climate change affects the population dynamics of insect pests is critical for the future of integrated pest management. Rising winter temperatures from global warming can drive increases in outbreaks of some ... 
A simulation agespecific tuberculosis model for the Cape Town metropole
(Academy of Science of South Africa, 20130918)Tuberculosis (TB) continues to present an insurmountable health burden in the Western Cape Province of South Africa. TB dynamics in adults is different from that in children, with the former determining the latter. Because ... 
Social and genetic networks of HIV1 transmission in New York City
(PLoS, 20170109)Background Sexually transmitted infections spread across contact networks. Partner elicitation and notification are commonly used public health tools to identify, notify, and offer testing to persons linked in these ... 
Spatial assortment of mixed propagules explains the acceleration of range expansion
(Public Library of Science, 201408)Abstract Range expansion of spreading organisms has been found to follow three types: (i) linear expansion with a constant rate of spread; (ii) biphase expansion with a faster linear expansion following a slower linear ... 
Special subvarieties of Drinfeld modular varieties
(Walter de Gruyter, 201011)We explore an analogue of the Andr´eOort conjecture for subvarieties of Drinfeld modular varieties. The conjecture states that a subvariety X of a Drinfeld modular variety contains a Zariskidense set of complex ... 
Die SuidAfrikaanse uitgebreide maritieme gebied : ’n alternatiewe metode vir die bepaling van die voet van die kontinentale helling
(AOSIS OpenJournal, 2006)Kuslande het ’n eenmalige geleentheid om by die Verenigde Nasies (VN) aansoek te doen om ’n uitgebreide maritieme gebied, indien hul wetenskaplik kan toon dat die voet van die kontinentale helling (VKH) buite hul soewereine ... 
Summations in Bernoulli's triangles via generating functions
(University of Waterloo, 2017)We revisit sums along straight lines of indices in Bernoulli triangles, and emphasize the use of generating functions as the appropriate tool. This leads to more direct and extended results, compared with a recent paper ... 
A survey of new trends in symbolic execution for software testing and analysis
(Springer Verlag, 200910)Symbolic execution is a wellknown program analysis technique which represents program inputs with symbolic values instead of concrete, initialized, data and executes the program by manipulating program expressions involving ...