国土技術総合研究所　研究資料

To capture the variation of effective control reproduction number (R c (t)), the control process are divided into three periods, the average of R c (t) are calculated for each stage

For instance, we have established sufficient conditions of the extinction and persistence in mean of the disease, as well as the existence of stationary distribution.. However,

In this article we provide a tool for calculating the cohomology algebra of the homo- topy fiber F of a continuous map f in terms of a morphism of chain Hopf algebras that models (Ωf

In this paper, we consider a Leslie-Gower predator-prey type model that incorporates the prey “age” structure an extension of the ODE model in the study by Aziz-Alaoui and Daher

It is suggested by our method that most of the quadratic algebras for all St¨ ackel equivalence classes of 3D second order quantum superintegrable systems on conformally flat

In particular, we consider a reverse Lee decomposition for the deformation gra- dient and we choose an appropriate state space in which one of the variables, characterizing the

These healthy states are characterized by the absence of inflammatory markers, which in the context of the model described above, correspond to equilibrium states in which

the existence of a weak solution for the problem for a viscoelastic material with regularized contact stress and constant friction coefficient has been established, using the