Effect of Time Delay on Stochastic Tumor Growth

• 作者: 田静 陈勇
• 来源期刊: 中国物理快报(英文版)
• 学科: 数学
• 关键词: 延迟时间 肿瘤生长 延迟反馈 随机 乘性噪声 状态概率 人口分布 细胞生长
• 年，卷（期）: 2010,（3）
• 页码范围: 48-51
• 页数: 4页
• 分类号: O223 Q26
• 语种: 英文

摘要

We study the dynamics of tumor cell growth with time-delayed feedback driven by multiplicative noise in an asymmetrical bistable potential well. For a small delay time, the analytical solutions of the probability distribution and the first passage time show that, with the increasing delay time, the peak of the probability distribution in a lower population state would increase, but in a higher population state it decreases. It is shown that the multiplicative noise and the time delay play opposite roles in the tumor cell growth.