Some arithmetic properties of the CWL invariant

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• 作者：Noriko Maruyama ^{maruyama@musabi.ac.jp" class="auth_mail" title="E-mail the corresponding author}
• 关键词：11F20 ; 57M27
• 刊名：Topology and its Applications
• 出版年：2016
• 出版时间：15 June 2016
• 年：2016
• 卷：206
• 期：Complete
• 页码：115-125
• 全文大小：300 K

文摘

To derive information about rational homology 3-spheres via the Casson–Walker–Lescop (CWL) invariant λ, this paper focuses on the fractional part of the invariant, completes the determination of the fractional parts of λ for homology lens spaces, shows that the fractional part is an invariant of the linking forms mod Z for homology lens spaces and gives a complete set of invariants derived from λ to classify the linking forms mod Z.