T. Akamatsu | On a parametrix in some weak sense of a first order linear partial differential operator with two independent variables | 1−27 |

A. Majeed | Freeness of the group <*a*^{n}, *b*^{n}> for some integer *n*, *a*, *b* ∈*SL*(2, *C*) | 29−33 |

T. Morimoto | On the intransitive Lie algebras whose transitive parts are infiniteand primitive | 35−65 |

T. Matumoto | On the signature invariants of a non-singular complex sesquilinear form | 67−71 |

S. Kawamura and J. Tomiyama | On subdiagonal algebras associated with flows in operator algebras | 73−90 |

K. Takeuchi | Arithmetic triangle groups | 91−106 |

M. Nakai and S. Segawa | Harmonic dimensions related to Dirichlet integrals | 107−121 |

F. Hiai and R. Satō | Mean ergodic theorems for semigroups of positive linear operators | 123−134 |

Y. Sakane | On compact complex affine manifolds | 135−149 |

Y. Ōshima | On a construction of a recurrent potential kernel by means of time change and killing | 151−159 |

M. Goto | On an integer associated with an algebraic group | 161−163 |

T. Shintani | On irreducible unitary characters of a certain group extension of* GL*(2, **C**) | 165−188 |