Logistic Type Equations on RN by a Squeezing Method Involving Boundary Blow-Up Solutions |
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Authors: | Du Yihong; Ma Li |
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Institution: | School of Mathematical and Computer Sciences, University of New England Armidale, NSW 2351, Australia, ydu{at}turing.une.edu.au
Department of Applied Mathematics, Tsinghua University Beijing, China, lma{at}math.tsinghua.edu.cn |
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Abstract: | We study, on the entire space RN(N 1), the diffusive logisticequation utu=uup, u0 (1.1) and its generalizations. Here p > 1 is a constant. Problem(1.1) plays an important role in understanding various populationmodels and some other problems in applied mathematics. When = 1 and p = 2, it is also known as the Fisher equation andKPP equation, due to the pioneering works of Fisher 8] andKolmogoroff, Petrovsky and Piscounoff 18]. |
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