检索结果-南通市图书馆

A fraction.l-order toxin.producin. phytoplan.ton. an. zooplan.ton.system

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

In.ern.tion.l Journ.l of Biomathematics 2014年第4期7卷 63-83页

作者： M. Javidi n. nyamoradi Faculty of Mathematical Scien.esUn.versity of Tabriz Tabriz Iran Departmen. of MathematicsFaculty of Scien.es Razi University 67149 Kermanshah Iran

In.this work, we in.estigate the dyn.mical behavior of a fraction.l-order toxin.producin. on.a phytoplan.ton.zooplan.ton.（TPPZ） system with n.trien. cyclin.. We propose a mathematical system to model this situation. All the feasible equilibria of the system are obtain.d an. the con.ition. for the existen.e of the equilibriums are determin.d. Local stability an.lysis of the TPPZ is studied by usin. the fraction.l Routh-Hurwitz stability con.ition.. n.merical simulation. are carried out for a hypothetical set of parameter values to substan.iate our an.lytical fin.in.s.

关键词： Toxic-phytoplan.ton zooplan.ton stability n.merical simulation frac-tion.l-order.

Dyn.mics of SVEIS epidemic model with distin.t in.iden.e

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

In.ern.tion.l Journ.l of Biomathematics 2015年第6期8卷 99-117页

作者： n. nyamoradi M. Javidi B. Ahmad Departmen. of Mathematics Faculty of Sciences Razi University 67149 Kermanshah Iran Faculty of Mathematical Scien.esUn.versity of Tabriz Tabriz Iran Departmen. of Mathematics Faculty of Science King Abdulaziz University P. O. Box 80203 Yeddah 21589 Saudi Arabia

In.this paper, we study the global dyn.mics of a SVEIS epidemic model with distin.t in.iden.e for exposed an. in.ectives. The model is an.lyzed for stability an. bifurcation.behavior. To accoun. for the realistic phen.men.n.of n.n.homogen.ous mixin., the effect of diffusion.on.differen. population.subclasses is con.idered. The diffusive model is an.lyzed usin. matrix stability theory an. con.ition. for Turin. bifurcation.are derived. n.merical simulation. support our an.lytical results on.the dyn.mic behavior of tile model.

关键词： SVEIS epidemic model diffusion Turin. bifurcation stability basic repro-duction.n.mber n.merical simulation.

EXISTEn.E TO FRACTIOn.L CRITICAL EQUATIOn.WITH HARDY-LITTLEWOOD-SOBOLEV n.n.In.ARITIES

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Scien.ia 2021年第4期41卷 1321-1332页

作者： n.mat nyamoradi Abdolrahman.RAZAn. Departmen. of Mathematics Razi UniversityKermanshahIran Departmen. of Pure Mathematics Faculty of ScienceImam Khomeini International University34149-16818QazvinIran

In.this paper,we con.ider the followin. n.w Kirchhoff-type equation. in.olvin. the fraction.l p-Laplacian.an. Hardy-Littlewood-Sobolev critical n.n.in.arity:(A+B∫∫_(R^(2n.)|u(x)-u(y)|^(p)/|x-y|^(n.ps)dxdy)^(p-1)(-△)_(p)^(s)u+λV(x)|u|^(p-2)u=(∫_(R^(n.)|U|^(P_(μ,S)^(*))/|x-y|^(μ)dy)|u|^(P_(μ,S)^(*))^(-2)u,x∈R^(n.,where(-△)_(p)^(s)is the fraction.l p-Laplacian.with 0n.n.ps,a,b>0,λ>0 is a parameter,V:R^(n.→R^(+)is a poten.ial fun.tion.θ∈[1,2_(μ,s)^(*))an. P_(μ,S)^(*)=pn.pμ/2/n.ps is the critical expon.n. in.the sen.e of Hardy-Littlewood-Sobolev *** get the existen.e of in.in.tely man. solution. for the above problem by usin. the con.en.ration.compactn.ss prin.iple an. Krasn.selskii’s gen.s *** the best of our kn.wledge,our result is n.w even.in.Choquard-Kirchhoff-type equation. in.olvin. the p-Laplacian.case.

关键词： Hardy-Littlewood-Sobolev in.quality con.en.ration.compactn.ss prin.iple variation.l method Fraction.l p-Laplacian.operators multiple solution.

Multiple solution. for weighted n.n.in.ar elliptic system in.olvin. critical expon.n.s

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Scien.e Chin. Mathematics 2015年第1期58卷 161-178页

作者： nyamoradi n.mat HSU Tsin. San Departmen. of Mathematics Faculty of Sciences Razi University Departmen. of n.tural Scien.es in.the Cen.er for Gen.ral Education Chang Gung University

In.this paper, by usin. the idea of category, we in.estigate how the shape of the graph of h（x） affects the n.mber of positive solution. to the followin. weighted n.n.in.ar elliptic system： = （ n.2-2a 2. where 0 is a smooth boun.ed domain.in.]1n.（n.〉 3）, A, cr 〉 0 are parameters, 0 ≤ μ 〈 μa a 2 ＇ h（x）, KI（X） an. K2（x） are positive con.in.ous fun.tion. in., 1 〈 q 〈 2, a, β 〉 1 an. a ＋ β = 2＊（a,b）（2＊（a, b） 2n. = n.2（1＋a-b） is critical Sobolev-Hardy expon.n.）. We prove that the system has at least k n.n.rivial n.n.egative solution. when.the pair of the parameters （）, r） belon.s to a certain.subset of n..

关键词： Caffarelli-Kohn.n.ren.erg in.quality variation.l method critical Hardy-Sobolev expon.n. mul-tiple positive solution.

The n.hari Man.fold an. Application.to a Quasilin.ar Elliptic Equation.with Multiple Hardy-Type Terms

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journ.l of Partial Differen.ial Equation. 2013年第3期26卷 193-216页

作者： nyamoradi n. SHEKARBIGI M. RAZLAn.ARI A. YAVARI M. Departmen. of Mathematics Faculty of Sciences Razi University67149 Kermanshah Iran.

In.this paper, by usin. the n.hari man.fold an. variation.l methods, we study the existen.e an. multiplicity of positive solution. for a multi-sin.ular quasilin.ar elliptic problem with critical growth terms in.boun.ed domain.. We prove that the equation.has at least two positive solution. when.the parameters A belon.s to a certain.subset of JR.

关键词： n.hari man.fold quasilin.ar elliptic equation Sobolev critical expon.n..