La strate du sol d’une mégapole : observations localisées sur l’Anthropocène
نویسندگان
چکیده
منابع مشابه
Oscillations localisées sur les diviseurs
Let f be a real arithmetic function and ∆(n, f) := sup u2R, 06v61 ���� X d|n eu<d6eu+v f(d) ���� denote the corresponding generalization of Hooley’s Delta-function. We investigate weighted moments of ∆(n; f) for oscillating functions f , typical cases being those of a non principal Dirichlet character or of the Möbius function. We obtain, in particular, sharp bounds up to factors (log x)o(1) fo...
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Physiological response of cotton (Gossypium hirsutum L.) genotype R405-2000 at the youthful stage to water deficit induced by polyethylene glycol The effect of water stress induced by polyethylene glycol (PEG) has been studied on germination and seedling growth of cotton. Five different concentrations of PEG have been tested and the results showed that PEG concentrations negatively influence se...
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ژورنال
عنوان ژورنال: Géocarrefour
سال: 2018
ISSN: 1627-4873,1960-601X
DOI: 10.4000/geocarrefour.12016