| 小容量污染环境中二维Volterra互惠系统的生存分析 |
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| 引用本文： | 程亚焕,李冬梅.小容量污染环境中二维Volterra互惠系统的生存分析[J].黑龙江大学自然科学学报,2006,23(2):269-271. |
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| 作者姓名： | 程亚焕 李冬梅 |
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| 作者单位： | 通化师范学院,数学系,吉林,通化,134002;哈尔滨理工大学,应用科学学院,黑龙江,哈尔滨,150080 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 利用积分均值和微分不等式的方法,在污染环境容量较小的条件下,讨论了体内毒素浓度相同,且具有食物链影响的二维Volterra互惠系统的生存状况,得到了种群弱平均持续生存和灭绝的充分条件.
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| 关 键 词： | 二维Volterra互惠系统 弱平均持续生存 灭绝 |
| 文章编号： | 1001-7011(2006)02-0269-03 |
| 修稿时间： | 2005年1月15日 |
On the existence of 2-D Volterra cooperative system in a small capacity and polluted environment |
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| CHENG Ya-huan,LI Dong-mei.On the existence of 2-D Volterra cooperative system in a small capacity and polluted environment[J].Journal of Natural Science of Heilongjiang University,2006,23(2):269-271. |
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| Authors: | CHENG Ya-huan LI Dong-mei |
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| Abstract: | With the methods of integral in mean and differential inequality principle,in a small capacity and polluted environment the survival state of two-dimensional Volterra cooperative system having equal toxin in bodys and being affected by food chain is studied.It obtains the sufficient conditions for weak persistence in the mean and extinction. |
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| Keywords: | 2-D Volterra cooperative system weak persistence in the mean extinction |
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