评“循环宇宙学中黑洞能被幽灵撕碎吗？””X。张某arXiv：0708.1408 [gr-qc]
Comment on ``Can Black Holes be Torn Up by a Phantom in Cyclic Cosmology?" by X. Zhang. arXiv:0708.1408 [gr-qc]
摘要：
在张\cite{Zhang}最近存档的一篇论文中，他声称在循环模型中的转向之前会发生两个意想不到的事件：（1）黑洞停止收缩并开始膨胀;（2）分离的因果补丁开始重新连接。我们表明，这两个结论是错误的，结果从作者的变量的选择。
英文摘要：
In a recently archived paper by Zhang\cite{Zhang}, it is claimed that before turnaround in a cyclic model two unexpected events happen: (1) black holes cease to contract and begin to expand; (2) separated causal patches start to reconnect. We show that both conclusions are erroneous and result from the author's choice of variables.
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。
