中文

欧氏格的斜率、张量积与群作用

数论 2018-11-26 v2

摘要

我们研究欧氏格的最小斜率在张量积下的行为。一个一般猜想预测,对所有欧氏格 LLMM 均有 μmin(LM)=μmin(L)μmin(M)\mu_{min}(L \otimes M) = \mu_{min}(L)\mu_{min}(M)。我们证明在附加假设 LLMM 被其自同构群无重数地作用、且其中之一至多具有 22 个不可约分支时,该等式成立。

关键词

引用

@article{arxiv.1806.04984,
  title  = {Slopes of Euclidean lattices, tensor product and group actions},
  author = {Renaud Coulangeon and Gabriele Nebe},
  journal= {arXiv preprint arXiv:1806.04984},
  year   = {2018}
}

备注

Update of a previous version. The main result is now stated for Hermitian bundles over totally real or CM number fields. A few proofs of intermediate results have been simplified