共查询到10条相似文献，搜索用时 31 毫秒
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通过具体刻画中心密码群并半群上的最小纯正同余ρ0={(a,b)∈S×S|a0=b0,ab-1∈C(S)}和中心完全正则半群上的最小Clliford同余ρyg={(a,b)∈S×S| a0=b0,ab-1∈C(S)},得出((y)∩ρyg)是中心完全正则半群上的最小纯正同余.Abstract： This paper aims to prove that((y)∩ρyg)is the least orthogroup congruence on central completely regular semigroups,by studying the least orthogroup congruence on central cryptogroups ρ0={(a,b)∈S×S| a0=b0,ab-1∈C(S)}and the least Clifford congruence on central completely regular semigroups ρrG={(a,b)∈S×S|aD6,ab1∈C(S)} 相似文献
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在Hilbert空间中运用了数学规划中hybrid方法证明了关于渐近非扩张半群的修正粘性迭代强收敛定理.Abstract： The strong convergence theorems of modified viscosity iterative for asymptotically nonexpansive semigroups in a Hilbert space are proved by the hybrid method in mathematical programming. 相似文献
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介绍了Markov积分半群的弱对称性,对于一个单流出保守的Q-矩阵,给出了Markov积分Q-半群忠实且弱对称的充要条件.Abstract： This paper introduces weak symmetry of Markov integrated semigroups. For a conservative single-exit q-matrix Q, sufficient and necessary conditions for a Markov integrated Q -semigroup to be honest and weakly symmetric are given. 相似文献
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研究Markov链中概率转移函数的收敛性,用算子半群的方法证明了正则概率转移函数的收敛与其对应的预解函数的收敛等价,并给出了概率转移函数收敛的q-矩阵条件.Abstract： This paper discusses the convergence and approximation in Markov chains by employing operator semigroup method.It is showed that if the Markov chains are regular,then the convergence of a sequence of transition functions is equivalent to the convergence of the corresponding resolvent functions.Furthermore,a condition on qmatrices such that their corresponding Q-functions converge is also obtained. 相似文献
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研究Banach空间X中的抽象半线性泛函微分方程d/dtx(t) = Ax(t)+F(t, x_t(·))的小时滞鲁棒稳定性,其中无界线性算子A在X上生成一个C0-半群T(t)_t≥0, F是非线性函数.在F是全局Lipschitz连续的条件下,利用算子半群理论以及扰动方法,证明了上述方程的解的指数稳定性对小时滞是鲁棒的.Abstract： The robust stability of the abstract semi-linear functional differential equationd/dtx(t)= Ax(t)+F(t, x_t(·))is considered in Banach space X, where the linear operator A generates a C_0-semigroup [T(t)]_t≥0in X, and F is a nonlinear function. Under the condition that F is globally Lipschitz continuous, and the robust stability of the above equation is proved with the operator semi-group theory and perturba-tion method. 相似文献
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证明了突变分支过程q-矩阵在l_∞空间上生成一个正压缩积分半群T(t),且该积分半群T(t)是随机单调的.给出了积分半群T(t)具有常返性的判别条件.Abstract： In this paper,we show that the catastrophe branching process q-matrix Q generates a postive contraction integrated semigroup T(t)on l_∞.T(t)is stochastically monotone.Also,a criterion of T(t)to be recurrent is given. 相似文献
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利用伴随多项式的代数性质,将伴随多项式的末项应用到图色唯一性的研究中,在一定限制条件下得到了稠密图-Q(4,n-5)色唯一的充要条件:设n是不小于8的偶数,m≥2.若h(Pm)(|)h-Q(4,n-5),则-Q(4,n-5)是色唯一的当且仅当n≠8.Abstract： Using the algebric properties of adjoint polynomials, especially the lowest degree terms, under the constrained condition we obtain a necessary and sufficient condition for the dense graph -Q(4, n - 5) to be chromatically unique, that is, let n ≥ 8 be even and m ≥ 2, if h (Pm) (|) h -Q(4, n - 5) , then -Q(4, n - 5)is chromatically unique if and only if n ≠ 8. 相似文献
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首先证明了碰撞分支Q-矩阵在Banach空间l∞上能生成一个积分半群T(t),且当m1≤0时它的生成元是Q∞,当m1＞0时它的生成元是Qo**.事实上,T(t)是一个Markov积分半群.然后论证了当m1＞0时,T(t)满足Feller性质.Abstract： This paper aims to prove that the collision branching q-matrix can generate an integrated semigroup T(t)on l∞ and that if m1 ≤ 0, its generator is Q∞; if m1 ＞ 0, its generator is Qo** . In fact, T(t) is just a Markov integrated semigroup. Also, we obtain that if m1 ＞ 0, this integrated semigroup has the Feller property. 相似文献
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证明了完全单半群能够表示为它的3个(或4个)真正规子集并的充分必要条件是其结构群以Klein四元群Z_2×Z_2(或Z_3×Z_3)为其同态象.Abstract： In this paper,we show that a completely simple semigroup can be represented as the union of its3(or 4)normal subsets if and only if Z_2×Z_2(or Z_3×Z_3)is its homomorphic image and get a generalised result of corresponding results in groups. 相似文献