Type | Author(s) | Title | Other Titles | Citation | Citation(alt) | Issue Date |

*article (author version)* | *Liu, Y.; Zhang, Y.; Cho, Y. T.; Obayashi, Y.; Arai, A.; Tamashiro, H.* | Gender differences of suicide in Japan, 1947-2010 | - | *Journal of affective disorders* | - | Oct-2013 |

*bulletin (article)* | *Arai, A.* | Non-relativistic limit of a Dirac-Maxwell operator in relativistic quantum electrodynamics | - | *Hokkaido University Preprint Series in Mathematics* | - | Dec-2001 |

*bulletin (article)* | *Arai, A.; Kawano, H.* | A class of deformations of the Schrdinger representation of the Heisenberg commutation relation and exact solution to a Heisenberg equation and a Schrdinger equation | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Jun-2000 |

*bulletin (article)* | *Arai, A.; Hirokawa, M.* | Stability of ground states in sectors and its application to the Wigner-Weisskopf model | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Mar-2000 |

*bulletin (article)* | *Arai, A.* | Instability in the spectral and the Fredholm properties of an infinite dimensional Dirac operator on the abstract Boson-Fermion Fock space | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Dec-2000 |

*bulletin (article)* | *Arai, A.* | Supersymmetric methods for constructing soliton-type solutions to multi-component nonlinear Schrdinger and Klein-Gordon equations | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Dec-2000 |

*bulletin (article)* | *Arai, A.* | Ground state of the massless Nelson model without infrared cutoff in a non-Fock representation | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Nov-2000 |

*bulletin (article)* | *Arai, A.; Hirokawa, H.* | Grounds states of a general class of quantum field Hamiltonians | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-May-1999 |

*bulletin (article)* | *Arai, A.* | Fundamental properties of the Hamiltonian of a Dirac particle coupled to the quantized radiation field | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Feb-1999 |

*bulletin (article)* | *Arai, A.* | Essential spectrum of a self-adjoint operator on an abstract Hilbert space of Fock type and applications to quantum field Hamiltonians | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Feb-1999 |

*bulletin (article)* | *Arai, A.* | Infinite dimensional analysis and analytic number theory | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Feb-1999 |

*bulletin (article)* | *Arai, A.* | On the essential spectra of quantum field Hamiltonians | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Sep-1998 |

*bulletin (article)* | *Arai, A.; Hirokawa, M.; Hiroshima, F.* | On the absence of eigenvectors of Hamiltonians in a class of massless quantum field models without infrared cutoff | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Dec-1998 |

*bulletin (article)* | *Arai, A.* | Representation-theoretic aspects of two-dimensional quantum systems in singular vector potentials canonical commutation relations, quantum algebras, and reduction to lattice quantum systems | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Jun-1997 |

*bulletin (article)* | *Arai, A.* | A new estimate for the ground state energy of Schrdinger operators | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-May-1997 |

*bulletin (article)* | *Arai, A.; Hirokawa, M.* | On the existence and uniqueness of ground states of a generalized spin-boson model | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Dec-1996 |

*bulletin (article)* | *Arai, A.* | A class of representations of the *-algebra of the canonical commutation relations over a Hilbert space and instability of embedded eigenvalues in quantum field models | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Dec-1996 |

*bulletin (article)* | *Arai, A.* | Representation of canonical commutation relations in a gauge theory, the Aharonov-Bohm effect, and Dirac Weyl operator | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Sep-1995 |

*bulletin (article)* | *Arai, A.; Hirokawa, M.* | On the Existence and Uniqueness of Ground States of the Spin-Boson Hamiltonian | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Sep-1995 |

*bulletin (article)* | *Arai, A.* | Strong coupling limit of the zero-energy-state density of the Dirac-Weyl operator with a singular vector potential | - | *Hokkaido University Preprint Series in Mathematics* | - | 1-Mar-1995 |