M. Behzad | Minimal 2-regular digraphs with given girth | 1−6 |

S. Endô and T. Miyata | Invariants of finite abelian groups | 7−26 |

N. Motohashi | Model theory on a positive second order logic with countable conjunctions and disjunctions | 27−42 |

M. Matsuda | Reduction of Monge-Ampère's equations by Imschenetsky transformations | 43−70 |

M. Goto | Products of two semi-algebraic groups | 71−74 |

S. T. Kuroda | Scattering theory for differential operators, I --- Operator theory | 75−104 |

B.-y. Chen | Pseudo-umbilical submanifolds of a Riemannian manifold of constant curvature, II | 105−114 |

M. S. Putcha and A. Yaqub | Rings satisfying polynomial constraints | 115−124 |

M. Sekizawa | The nullity spaces of the conformal curvature tensor | 125−131 |

J. Lagnese | Approximation of solutions of differential equations in Hilbert space | 132−143 |

T. Shioda | On rational points of the generic elliptic curve with level *N* structure over the field of modular functions of level *N* | 144−157 |

N. Toda | Sur quelques combinaisons linéaires exceptionnelles au sens de Nevanlinna, II | 158−167 |