8 citations · 11 across the 11 of their papers we have counts for
11 papers · 1 filter
Local inequalities for and singularities
Chi-Kang Chang, Jheng-Jie Chen, Takuzo Okada
We obtain inequalities for isolated and singularities, analogues of the -inequality for isolated singularity in \cite{KOP}. These inequ…
On the divisorial contractions to curves of threefolds
Hsin-Ku Chen, Jheng-Jie Chen, Jungkai A. Chen
We prove that each divisorial contraction to a curve between terminal threefolds is a weighted blow-up under a suitable embedding. Moreover, we give a classification of the weighte…
Classification of threefold canonical thresholds
Jheng-Jie Chen, Jiun-Cheng Chen, Hung-Yi Wu
We show that the set of smooth threefold canonical thresholds coincides with $\mathcal{T}_{2, \mathrm{sm}}^{\mathrm{lc}}=\mathcal{HT}_…
Log canonical thresholds of Burniat surfaces with
Nguyen Bin, Jheng-Jie Chen, YongJoo Shin
In the paper we compute the global log canonical thresholds of the secondary Burniat surfaces with . Furthermore, we establish optimal lower bounds for the log canonical t…
Accumulation points on 3-fold canonical thresholds
Jheng-Jie Chen
We obtain that the nonzero accumulation points of the set of 3-fold canonical thresholds $\ct(X,S)$ are precisely where is an integer and is an effective integra…
On threefold canonical thresholds
Jheng-Jie Chen
We show that the set of threefold canonical thresholds satisfies the ascending chain condition. Moreover, we derive that threefold canonical thresholds in the interval $ (\frac{1}{…
On quint-canonical birationality of irregular threefolds
Jheng-Jie Chen, Jungkai Alfred Chen, Meng Chen +1
Let be a complex smooth projective threefold of general type. Assume . We show that the -canonical map of is birational for all .
On Chern number inequality in dimension 3
Jheng-Jie Chen
We prove that if is a threefold terminal flip, then where and denote the Chern classes. This gives the affirmati…
Normality of general elephants on 3-fold terminal flips
Jheng-Jie Chen
We prove that the general elephant is normal where is a 3-fold terminal flip. Hence has at worst Du Val singularities. As a corollary,…
Finiteness of Calabi-Yau quasismooth weighted complete intersections
Jheng-Jie Chen
We prove that there exist only finitely many families of Calabi-Yau quasismooth weighted complete intersections with every fixed dimension . This generalizes a result of Johnson…
On Quasismooth Weighted Complete Intersections
Jheng-Jie Chen, Jungkai Alfred Chen, Meng Chen
We prove two conjectures on weighted complete intersections and give the complete classification of threefold weighted complete intersections in weighted projective space that are…