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Estimating the unreported catch of Eritrean Red Sea fisheries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Tesfamichael TJ PitcherUnreported catches from three major fisheries in the Eritrean Red Sea were investigated in order to estimate the impact of the total extraction of fish from the ecosystem, which will help the assessment of the resource and its management. The... -
Spatial interpolation of vertisol physico-chemical properties through ordinary kriging in south-eastern Zimbabwe
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Muketiwa Chitiga --- Lupane State University, Zimbabwe Gabriel Soropa --- Chinhoyi University of Technology, Zimbabwe Trevor Dube --- Midlands State University, Zimbabwe Progress Sengera --- GreenFuel, ZimbabweA decline in sugarcane yields from Block G (∼400 ha) of GreenFuel’s Chisumbanje Estate in south-eastern Zimbabwe prompted a study on spatial variability of the soil physico-chemical parameters in the 2017–2018 farming season. Using a systematic gridding schema, 123 geo-located... -
Some measure-theoretic aspects of fractal functions: invariant measures and function spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Megha Pandey --- , India Tanmoy Som --- , India Saurabh Verma --- , IndiaBarnsley (1986) introduced the concept of fractal interpolation functions (FIFs). Thereafter, numerous theories have been developed concerning FIFs and their properties. In this article, we explore some measure theoretic aspects of FIFs generated by the method given by Barnsley. We... -
On β-adic expansions of powers of an algebraic integer omitting a digit
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jiuzhou Zhao --- East China Normal University, China Ruofan Li --- Jinan University, ChinaLet α, β be two relatively prime algebraic integers in a number field K and N be a positive integer. We show that the number of n ∈ {1, 2, . . . , N} such that the β-adic expansion...