Embeddings of Sp × Sq × Sr in Sp+q+r+1

Laércio Aparecido Lucas, Osamu Saeki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Let f: Sp × Sq × Sr → Sp+q+r+1,2 ≤ p ≤ q ≤ r, be a smooth embedding. In this paper we show that the closure of one of the two components of Sp+q+r+1 - f(Sp × Sq × Sr), denoted by C1, is diffeomorphic to Sp × Sq × Dr+1 or Sp × Dq+1 × Sr or Dp+1 × Sq × Sr, provided that p + q ≠ r or p + q = r with r even. We also show that when p + q = r with r odd, there exist infinitely many embeddings which do not satisfy the above property. We also define standard embeddings of Sp × Sq × Sr into Sp+q+r+1 and, using the above result, we prove that if C1 has the homology of Sp × Sq, then f is standard, provided that q < r.

Original languageEnglish
Pages (from-to)447-462
Number of pages16
JournalPacific Journal of Mathematics
Issue number2
Publication statusPublished - Dec 2002

All Science Journal Classification (ASJC) codes

  • Mathematics(all)


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