Takeaki Yamazaki

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In this paper, we introduce a new two-step iterative scheme with errors for finding a common fixed points of two quasi-nonexpansive multi-valued maps in Banach spaces. We prove a strong convergence theorem of the purposed algorithm under some control conditions. The results obtained in this paper improve and extend the corresponding one announced by Shahzad(More)
CP violation in the quark sector has been well established over the last decade, but has not been observed in the lepton sector. We search for CP violating decay processes in positronium, using the angular correlation of (S x k{1})(S x k{1}x k{2}), where S is the positronium spin and k{1}, k{2} are the directions of the positronium decay photons. To a(More)
A > B 2 0 ensures A'-' > (A ~ B P A ~) ~ for any p > 1 and t 5 0. This inequality is well known as F'uruta inequality. In case t 2 0 and A 2 B > 0 with A > 0, four inequalities similar to this inequality have been obtained by many researchers. In this paper, we show relations among these four inequalities and also we discuss an open problem related to one(More)
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