On Nash's 4-sphere and Property 2R
英文摘要：
D.Nash defined a family of homotopy 4-spheres in [11]. Proving that his manifolds ${\mathcal S}_{m,n,m',n'}$ are all real $S^4$, we find that they have handle decomposition with no 1-handles, two 2-handles and two 3-handles. The handle structures give new potential counterexamples of Property 2R conjecture.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
