Valuative stability of polarised varieties
Valuative stability of polarised varieties
复制标题
极化品种的价值稳定性
DOI:
10.1007/s00208-021-02313-4
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发表时间:
2020
影响因子:
1.4
通讯作者:
Eveline Legendre
中科院分区:
文献类型:
--
作者:
R. Dervan;Eveline Legendre
Fujita and Li have given a characterisation of K-stability of a Fano variety in terms of quantities associated to valuations, which has been essential to all recent progress in the area. We introduce a notion of valuative stability for arbitrary polarised varieties, and show that it is equivalent to K-stability with respect to test configurations with integral central fibre. The numerical invariant governing valuative stability is modelled on Fujita’s $$\beta $$ β -invariant, but includes a term involving the derivative of the volume. We give several examples of valuatively stable and unstable varieties, including the toric case. We also discuss the role that the $$\delta $$ δ -invariant plays in the study of valuative stability and K-stability of polarised varieties.
影响因子:
1.7
作者:
Harold Blum;Mattias Jonsson
通讯作者:
Harold Blum;Mattias Jonsson
影响因子:
4.9
作者:
Yuchen Liu;Chenyang Xu;Ziquan Zhuang
通讯作者:
Yuchen Liu;Chenyang Xu;Ziquan Zhuang
DOI:
10.48550/arxiv.1202.1164
发表时间:
2012
期刊:
arXiv e-prints
影响因子:
--
作者:
Kaloghiros Anne-Sophie
通讯作者:
Kaloghiros Anne-Sophie