We study ideals of the form, where P_i,j are ideals generated by variables {x₁, x₂, ..., x_n} \{x_i, x_j} in a polynomial ring over a field. We concentrate the case that each power w_i,j takes a value α or β, where α > β > 0. Our purpose is determining whether S/I is Cohen-Macaulay or not for such an ideal. We take a graph consisting of {i, j} where w_i,j = α. The Cohen-Macaulayness is characterized by G. © Taylor & Francis Group, LLC.

Minh N.C., Nakamura Y.

163.pdf    Gửi cho bạn bè

Từ khóa :