132 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Mbarara University of Science and TechnologyUG15 papers
- Ethiopian Space Science and Technology InstituteET11 papers
- ICTP - East Africa Institute for Fundamental ResearchRW8 papers
- Instituto de Astrofísica de AndalucíaES8 papers
- University of KigaliRW7 papers
- North-West UniversityZA6 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- Korea Institute for Advanced StudyKR5 papers
- University of Cape TownZA5 papers
- University of OxfordGB5 papers
- Institut d'Astrophysique de ParisFR4 papers
- Sorbonne UniversitéFR4 papers
57 papers
The impact of selection criteria on the properties of green valley galaxies
Beatrice Nyiransengiyumva, Mirjana Povic, Pheneas Nkundabakura +2
Context: The bi-modality in the distribution of galaxies usually obtained from colour-colour or colour-stellar mass diagrams has been studied to show the difference between the gal…
Advancing rail safety: An onboard measurement system of rolling stock wheel flange wear based on dynamic machine learning algorithms
Celestin Nkundineza, James Ndodana Njaji, Samrawit Abubeker +2
Rail and wheel interaction functionality is pivotal to the railway system safety, requiring accurate measurement systems for optimal safety monitoring operation. This paper introdu…
Testing Gauss-Bonnet Gravity with DESI BAO Data
Praveen Kumar Dhankar, Dalale Mhamdi, Albert Munyeshyaka +3
In the present paper, we observationally constrain f (G) gravity at the background level using Type Ia supernovae from the Pantheon Plus (PP) sample, cosmic chronometer (CC) data,…
Matter power spectrum in a power-law gravity
Albert Munyeshyaka, Praveen Kumar Dhankar, Joseph Ntahompagaze
Cosmological models based on gravity are efficient in fitting different observational datasets at both background and perturbation levels. This motivates the current study t…
Evaluating satellite and reanalysis rainfall estimates for climate services in agriculture: a comprehensive methodology
Danny Parsons, David Stern, Denis Ndanguza +5
High-resolution rainfall estimates from satellite and reanalysis sources (SRE) could play a major role in improving climate services for agriculture. This is particularly relevant…
Some More Sparse Bounds for Rough and Smooth Pseudodifferential Operators
Solange Mukeshimana, David Rule
Beltran \& Cladek~\cite{BC} use to bounds to prove sparse form bounds for pseudodifferential operators with Hörmander symbols in up to, but not including, t…
Validation of satellite and reanalysis rainfall products against rain gauge observations in Ghana and Zambia
John Bagiliko, David Stern, Denis Ndanguza +1
Accurate rainfall data are crucial for effective climate services, especially in Sub-Saharan Africa, where agriculture depends heavily on rain-fed systems. The sparse distribution…
Perturbations with bulk viscosity in modified chaplygin gas cosmology
Albert Munyeshyaka, Praveen Kumar Dhankar, Joseph Ntahompagaze
In the present work, we investigate cosmological perturbations of viscous modified chaplygin gas model. Using 1 + 3 covariant formalism, we define covariant and gauge invariant gra…
On 1 + 3 covariant perturbations of the quasi-Newtonian space-time in modified Gauss-Bonnet gravity
Albert Munyeshyaka, Joseph Ntahompagaze, Tom Mutabazi +1
The consideration of a 1 + 3 covariant approach to cold dark matter universe with no shear cosmological dust model with irrotational flows is developed in the context of f (G) grav…
The [OIII] profiles of far-infrared active and non-active optically-selected green valley galaxies
Antoine Mahoro, Petri Väisänen, Mirjana Pović +8
We present a study of the line profile in a sub-sample of 8 active galactic nuclei (AGN) and 6 non-AGN in the optically-selected green valley at $\rm{z\,<\,0.5…
Interplay of electron-magnon scattering and spin-orbit induced electronic spin-flip scattering in a two-band Stoner model
Félix Dusabirane, Kai Leckron, Baerbel Rethfeld +1
This paper presents a theoretical investigation of electron-magnon scattering processes in the ultrafast demagnetization in itinerant ferromagnets. In the framework of a ferromagne…
TeV-scale leptoquark searches at the LHC and their ESSM Interpretation
Murad Ali, Shaaban Khalil, Stefano Moretti +4
We perform a model-independent search for leptoquarks (LQs) at the Large Hadron Collider through their pair-production and subsequent decay into intermediate states. W…
A fractional Hawkes process II: Further characterization of the process
Cassien Habyarimana, Jane A. Aduda, Enrico Scalas +3
We characterize a Hawkes point process with kernel proportional to the probability density function of Mittag-Leffler random variables. This kernel decays as a power law with expon…
Is cosmic dynamics self-regulating?
Manasse R. Mbonye
In this paper we discuss a cosmological model for a universe with self-regulating features. We set up the theoretical framework for the model and determine the time evolution of th…
3 Definitions of BF Theory on Homology 3-Spheres
Matthias Blau, Mbambu Kakona, George Thompson
3-dimensional BF theory with gauge group (= Chern-Simons theory with non-compact gauge group ) is a deceptively simple yet subtle topological gauge theory. Formally, its pa…
Perturbations in the interacting vacuum
Albert Munyeshyaka, Joseph Ntahompagaze, Tom Mutabazi +4
In this study, we present the evolution of cosmological perturbations in a universe consisting of standard matter and interacting vacuum. We use the covariant formalism in…
Multifluid cosmology in f (G) gravity
Albert Munyeshyaka, Abraham Ayirwanda, Fidele Twagirayezu +1
The treatment of 1 + 3 covariant perturbation in a multifluid cosmology with the consideration of f (G) gravity, G being the Gauss-Bonnet term, is done in the present paper. We def…
Observable r, Gravitino Dark Matter, and Non-thermal Leptogenesis in No-Scale Supergravity
Waqas Ahmed, Muhammad Moosa, Shoaib Munir +1
We analyse the shifted hybrid inflation in a no-scale SU(5) model with supersymmetry, which naturally circumvents the monopole problem. The no-scale framework is derivable as the e…
Dynamic State Estimation for Load Bus Protection on Inverter-Interfaced Microgrids
Arthur K. Barnes, Adam Mate, Jean Marie V. Bikorimana +1
Inverter-interfaced microgrids results in challenges when designing protection systems. Traditional time-overcurrent, admittance, and differential protection methods are unsuitable…
Massive Ray-Singer Torsion and Path Integrals
Matthias Blau, Mbambu Kakona, George Thompson
Zero modes are an essential part of topological field theories, but they are frequently also an obstacle to the explicit evaluation of the associated path integrals. In order to ad…
On inflationary parameters in scalar-tensor theories
Beatrice Murorunkwere, Fidele Twagirayezu, Albert Munyeshyaka +2
The equivalence between and scalar-tensor theories is revisited, we consequently explored different models. After consideration of specific definition of the scalar f…
Large-scale structure power spectrum from scalar-tensor gravity
Joseph Ntahompagaze, Amare Abebe, Manasse R. Mbonye
This work deals with the computation of the power spectrum of large-scale structure using the dynamical system approach for a multi-fluid universe in scalar-tensor theory of gravit…
Stellar populations of a sample of far-IR AGN and non-AGN green valley galaxies
Antoine Mahoro, Mirjana Pović, Petri Väisänen +2
We present a study on the stellar populations and stellar ages of sub-sample of far-infrared AGN and non-AGN green valley analysed in Mahoro et al. (2017,2019) at 0.6 < z < 1.0 usi…
Dark Matter in the CP-violating NMSSM
Waqas Ahmed, Mark Goodsell, Shoaib Munir
In the Next-to-Minimal Supersymmetric Standard Model there is a strong correlation between the mass terms corresponding to the singlet Higgs and the singlino interaction states, bo…