SUT JOURNAL OF MATHEMATICS
Volume 54, Number 2 2018
CONTENTS
Shohei Satake, Masanori Sawa and Masakazu Jimbo:
Erd˝os-R´enyi theory for asymmetric digraphs ... 109 Noriyoshi Fukaya and Masahito Ohta :
Strong instability of standing waves with negative energy for double power nonlinear Schr¨odinger equations ... 131 Yuji Sagawa:
The lifespan of small solutions to a system of cubic nonlinear Schr¨odinger equations in one space dimension ... 145 Maho Yokota:
Edge connectivity and restricted edge connectivity of cartesian product of graphs ... 161 Naoko Yoshimi and Akira Yoshioka: