Hopf Bifurcation Analysis for the Model of the Chemostat with One Species of Organism by Haiyun Bai, Yanhui Zhai

“…By using the normal form theory and center manifold method, we derive the explicit formulas determining the stability and direction of bifurcating periodic solutions. …”
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Solvability for a Fractional Order Three-Point Boundary Value System at Resonance by Zigen Ouyang, Hongliang Liu

“…The topological degree theory is applied to determine the particular value of the parameters so that the system has a solution.…”
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Deformation of domain and the limit of the variational eigenvalues of semilinear elliptic operators by Tetsutaro Shibata

“…The asymptotic behavior of the variational eigenvalues μ=μn(r,α) obtained by Ljusternik-Schnirelman theory is studied when the domain Ω0 is deformed continuously. …”
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Existence and multiplicity results for non-autonomous second-order Hamiltonian systems by Liu Chungen, Zhong Yuyou

“…In this article, using the least action principle and minimax methods in critical point theory, some existence and multiplicity results for periodic solutions of second-order Hamiltonian systems are obtained.…”
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An interpretation map: finding paths to reading processes by B. Green

“… A consideration of the origins, development, and aftermath of Reader?Response theory helps place both possibilities and limits on the role of reading and interpretation of texts, biblical in particular. …”
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Maximum Independent Sets Partition of (n,k)-Star Graphs by Fu-Tao Hu

“…The independent number and chromatic number of a graph are two important parameters in graph theory. However, we have not known the values of these two parameters of the (n,k)-star graph since it was proposed. …”
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FINANCIAL MANAGEMENT OF SOCIAL AND ECONOMIC SYSTEMS by A. Ksenofontov, A. Kamaletdinov

“…Based on the theory of systems the conceptual model of functioning of the budget Russian Federation system is offered. …”
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A simple analysis of vaccination strategies for rubella by Bruno Buonomo

“…We consider an SEIR epidemic model with vertical transmission introduced by Li, Smith and Wang, [23], and apply optimal control theory to assess the effects of vaccination strategies on the model dynamics. …”
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REALİST VE REALİST KARŞITI GÖRÜŞLERDE GÖZLENEBİLİRLİK KAVRAMI by Sedat Yazıcı

“…I suggest that even if observation in the sense of perception were theory-neutral that does not make any difference in testing scientific theories, because the kind of testability that scientific theories must pass is based upon not personal or subjective beliefs but intersubjectively shared ones…”
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On the existence of generalised syzygies in the planar three-body problem by Tsygvintsev, Alexei

“…Our proof is elementary and uses only basic tools from the Sturm–Liouville theory.…”
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Refinements of the Lower Bounds of the Jensen Functional by Iva Franjić, Sadia Khalid, Josip Pečarić

“…Refinements of some previously known results are given by applying results from the theory of majorization. Furthermore, some interesting special cases are considered.…”
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On the modelling of complex sociopsychological systems with some reasoning about Kate, Jules, and Jim by Nicola Bellomo, Bruno Carbonaro

“…The modelling is based on suitable developments of the methods of mathematical kinetic theory of active particles with special attention to modelling multiple interactions. …”
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Simulating education. The bureaucratisation of schooling as a production of the simulacra by Piotr Zamojski

“…Starting from Max Weber classical view, thanks to its critique made by Claude Lefort I try to interpret the bureaucratisation of schooling with reference to Jean Baurillard theory of simulation as the production of the simulacra. …”
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Lectores de obras jurídicas en la Edad Moderna (Sevilla, siglos XVI–XVII) by Natalia Maillard Álvarez

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Bifurcation of Travelling Wave Solutions of the Generalized Zakharov Equation by Masoud Mosaddeghi

“…By using bifurcation theory of planar ordinary differential equations all different bounded travelling wave solutions of the generalized Zakharov equation are classified in to different parametric regions. …”
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Recent trends in user studies: action research and qualitative methods by T.D. Wilson

“…</i> It attempted to set out what was, for the time, a novel perspective on appropriate methodologies for the study of human information seeking behaviour, focusing on qualitative methods and action research, arguing that the application of information research depended up its adoption into the managerial processes of organizations, rather than its self-evident relationship to any body of theory.…”
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Existence of Global Solutions for Nonlinear Magnetohydrodynamics with Finite Larmor Radius Corrections by Fariha Elsrrawi, Harumi Hattori

“…Our techniques of proof are based on the existence of local solution by semigroups theory and a priori estimate.…”
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Periodic Solutions for a Class of 𝑛-th Order Functional Differential Equations by Bing Song, Lijun Pan, Jinde Cao

“…Our approach is based on the coincidence degree theory of Mawhin.…”
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A Study of Charged Cylindrical Gravitational Collapse with Dissipative Fluid by Sanjukta Chakraborty, Subenoy Chakraborty

“…Finally, using the Miller-Israel-Steward causal thermodynamic theory, the transport equation for heat flux is derived and its influence on collapsing system has been studied.…”
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Bifurcation of a Delayed SEIS Epidemic Model with a Changing Delitescence and Nonlinear Incidence Rate by Juan Liu

“…Directly afterwards, properties of the Hopf bifurcation are determined based on the normal form theory and the center manifold theorem. At last, numerical simulations are carried out to illustrate the obtained theoretical results.…”
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