時間尺度上具有時變時滯和額外食物供給的比例依賴食餌-捕食者模型的分析

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中圖分類號：0175.1 文獻標志碼：A

Abstract：Inthispaper，weconsideraratio-dependentpredator-preymodelwithaddionalfoodsupplyontimescales.Consderingthe efecttievaryingdelays，thepermanenethepreypredatorpopulationsisobainedbyestablishingsomedynamicinequalities ontimecalesapplyingthecomparisontheorem.Furter，byemployingcoincidencedegreeteory，suficientconditionsfortheexistenceaperiodicsolutioninthemodelarederived.Finaly，wegiveanumericalexample toverifytheresultsouranalysis. Key words：predator-prey model;time scales;time delays;permanence;periodic solution

生物種群作為一種可再生資源，正日益受到人們的關(guān)注。（剩余10395字）