A. Shirzad, H. Arfaei, "Modular invariant partition functions and method of shift vector" |
August |
1993 |

A. Shirzad, "Gauge symmetry in Lagrangian formulation and Schwinger models" |
March |
1998 |

A. Shirzad, N. Sadeghnezhad, "Lagrangian and Hamiltonian constraint structure coefficients" |
September |
1998 |

A. Shirzad, M. Shabani Moghadam, "Explicit form of the gauge transformation generator in terms of constraints" |
November |
1999 |

A. Faraji, A. Shirzad, "Gauge Transformation as reduction of BRST transformation"(in farsi) |
March |
1999 |

M. M. Sheikh-Jabbari, A. Shirzad, "Boundary conditions as Dirac constraints" |
February |
2001 |

A. Shirzad, M. Mojiri, "Constraint structure in modified Faddeev-Jackiw method" |
December |
2001 |

A. Shirzad, F. Loran, "Gauge fixing in the chain-by-chain method" |
December |
2002 |

F. Loran, A. Shirzad, "Classification of constraints using the chain-by-chain method" |
February |
2002 |

M. Monemzadeh, A. Shirzad, "Finite Order BFFT Method" |
December |
2003 |

A. Shirzad, M. Monemzadeh, "The BFT method with chain structure" |
March |
2004 |

A. Shirzad, M. Mojiri, "The difficulty of symplectic analysis with second class systems" |
December |
2004 |

M. Monemzadeh, A. Shirzad, "BFT Method for Mixed Constrained Systems and Chern-Simons Theory" |
August |
2005 |

M. Dehghani, A. Shirzad, "The reduced phase space of an open string in the background B-field" |
October |
2006 |

A. Shirzad, "Full and partial gauge fixing" |
August |
2007 |

M. Sadegh, A. Shirzad, "Constraint structure of the three dimensional massive gravity" |
April |
2011 |

A. Shirzad, A. Bakhshi, Y. Koohsarian, "Symplectic Quantization of Massive Bosonic string in background B-field" |
April |
2012 |