190 citations
- Universitatea Avram IancuRO21 papers
- Babeș-Bolyai UniversityRO12 papers
- University of JyväskyläFI9 papers
- St Petersburg UniversityRU8 papers
- Comenius University BratislavaSK6 papers
- Mathematical Institute of the Slovak Academy of SciencesSK6 papers
- Slovak Academy of SciencesSK6 papers
- City University of Hong KongHK5 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT4 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT4 papers
- Romanian AcademyRO4 papers
- Technical University of Cluj-NapocaRO4 papers
52 papers
Constraining Early Dark Energy cosmological models with Big Bang Nucleosynthesis
Teodora M. Matei, Cristian Croitoru, Tiberiu Harko
The recent cosmological picture contains a significant tension indicating that our standard CDM picture may be incomplete. Early Dark Energy models can alleviate the Hubble tens…
Exact general relativistic solutions for a cylindrically symmetric stiff fluid matter source
Tiberiu Harko, Francisco S. N. Lobo, Man Kwong Mak
In this work, we derive the general solutions for a cylindrically symmetric space-time filled with a cosmological perfect fluid obeying (), where repres…
Seeing Soil from Space: Towards Robust and Scalable Remote Soil Nutrient Analysis
David Seu, Nicolas Longepe, Gabriel Cioltea +2
Environmental variables are increasingly affecting agricultural decision-making, yet accessible and scalable tools for soil assessment remain limited. This study presents a robust…
The Stochastic-Dissipative Störmer Problem-Trajectories and Radiation Patterns
Tiberiu Harko, Gabriela Raluca Mocanu
We consider a generalization of the classical nonrelativistic Störmer problem, describing the motion of charged particles in a purely magnetic dipole field, by taking into account…
On the stability domain of a class of linear systems of fractional order
Marius-F. Danca
In this paper, the shape of the stability domain S^q for a class of difference systems defined by the Caputo forward difference operator D^q of order q\in (0, 1) is numerically ana…
Controlling dynamics of a COVID--19 mathematical model using a parameter switching algorithm
Marius-F. Danca
In this paper the dynamics of an autonomous mathematical models of COVID-19 depending on a real parameter bifurcation, is controlled by switching periodically the parameter value.…