A theory of multiplier functions and sequences and its applications to Banach spaces
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How affluent is the South African higher education sector and how strong is the South African academic profession in the changing international academic landscape? Higgs, L G; Higgs, P; Ntshoe, I; Wolhuter, Charste Coetzee (Unisa Press, 2010)
Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ-ray observations with H.E.S.S. Abdalla, H.; Arcaro, C.; Backes, M.; Barnard, M.; Böttcher, M.; Chand, T.; Chandra, S.; Ndiyavala, H.; Schutte, H.; Seyffert, A.S.; Van der Walt, D.J.; Van Rensburg, C.; Venter, C.; Wadiasingh, Z.; Zacharias, M.; Żywucka, N.; H.E.S.S. Collaboration (EDP Sciences, 2019)The flat spectrum radio quasar 3C 279 is known to exhibit pronounced variability in the high-energy (100 MeV < E < 100 GeV) γ-ray band, which is continuously monitored with Fermi-LAT. During two periods of high activity ...
De Jeu, Marcel; Messerschmidt, Miek (Elsevier, 2014)We show that a continuous additive positively homogeneous map from a closed not necessarily proper cone in a Banach space onto a Banach space is an open map precisely when it is surjective. This generalization of the ...