@article{oai:nagoya.repo.nii.ac.jp:00022768,
 author = {Goto, Shiro and Takahashi, Ryo and Taniguchi, Naoki},
 journal = {Proceedings of the American Mathematical Society},
 month = {Dec},
 note = {The structure of the complex RHomR(R=I;R) is explored for an Ulrich ideal I in a Cohen{Macaulay local ring R. As a consequence, it is proved that in a one- dimensional almost Gorenstein but non-Gorenstein local ring, the only possible Ulrich ideal is the maximal ideal. It is also studied when Ulrich ideals have the same minimal number of generators.},
 pages = {2811--2823},
 title = {Ulrich ideals and almost Gorenstein rings},
 volume = {144},
 year = {2015}
}