Welcome to AfricArXiv
This initiative showcases UbuntuNet's commitment to fostering knowledge sharing, collaboration, and accessibility within the African research community. With AfricArxiv, researchers across the continent have a dedicated platform to disseminate their findings, making them accessible to a global audience. By facilitating open access to scholarly work, UbuntuNet Alliance plays a pivotal role in advancing the principles of open science, enhancing research visibility, and driving innovation across Africa.
Communities in AfricArXiv
Select a community to browse its collections.
- The general repository is open for individual submissions by researchers, librarians and research administrators.
- Showcase of project activities, presentations, and scholarly contributions curated by the AfricArXiv initiative.
- Scholarly items sorted by country > Institution > Department
- A Rapid Grant Fund to address research questions and implement science engagement activities associated with COVID-19
Recent Submissions
Correlated Quantum Matter Beyond Band Theory: A Continuum-Interaction Formalism for Strongly Coupled Electrons
(Publisher, 2025-11-26) Barack Ndenga
The failure of conventional band theory to describe strongly correlated materials—high-Tc superconductors, Mott insulators, and strange metals—reveals a fundamental incompleteness in our current understanding of electron–electron interactions. In this work, I propose a unified continuum-interaction formalism that treats electronic behavior not as a perturbation around independent quasiparticles, but as an emergent quantum collective governed by non-local correlations. Using an extended Hubbard–Landau functional, a correlation-driven spectral reconstruction model, and a tensor-network-inspired coarse-graining operator, I derive a framework capable of capturing insulating, metallic, and incoherent regimes within a single mathematical structure. This approach suggests that the breakdown of band theory is not an anomaly but an inevitable manifestation of collective entanglement. I discuss analytical consequences, numerical implications, limitations, and future research directions toward a full predictive theory of correlated quantum matter.
Quantum π-Unification II: Definition, Mathematical Structure, and Foundational Properties of the Quantum π for Molecular Systems
(Publisher, 2025-11-25) Barack Ndenga
The second article in the Quantum π-Unification Series establishes a fully defined, operational, and mathematically rigorous formulation of the Quantum π for molecular systems.
Unlike classical π-electron theory—which only describes delocalized electrons—the Quantum π introduced here represents a phase-information invariant governing chemical stability, resonance, symmetry, and reactivity.
This work develops:
1. the conceptual foundations of the Quantum π,
2. its mathematical structure (phase operator, symmetry factor, information contribution),
3. the connection with chemical resonance, electronegativity flow, and energy minimization,
4. prediction rules for molecular stability and reactivity.
The article also introduces the π-Stability Index (PSI) and the Quantum π-Symmetry Number, two new descriptors that unify chemical information, electronic delocalization, and energetic behavior.
From 8 000 “Criticals” to Fewer Than 200: Five Years of Pathway-Aware Risk Prioritisation in Enterprise Vulnerability Management
(CEMA-USK, 2025-11-20) Nsiangani, Kibavuidi; Ipoli, Christian
Security operations teams are overwhelmed by alerts and routinely wrestle with backlogs of
several thousand “critical” vulnerabilities, yet still experience serious incidents and rising
analyst burnout. During the first years of the COVID-19 pandemic this became particularly
visible: attack surfaces expanded overnight through remote access, while staffing levels and
attention were under pressure.
This article describes five years of experience with a pathway-oriented, open-standard risk
prioritisation model deployed in several Tier-1 European organisations in financial and
automotive sectors. Instead of relying primarily on scanner-provided severity (for example
CVSS-based critical/high/medium/low buckets), the model ranks issues according to their role
in concrete attacker pathways: how they enable entry, lateral movement and impact on critical
assets.
Our research offers three main contributions. First, we detail a natural experiment during the
first COVID-19 wave where an automotive finance subsidiary, using shared infrastructure,
reduced over 6,000 scanner-critical items on its remote-access estate to zero pathway-critical
issues in under six months. This occurred despite increased remote-work exposure and attack
volume, and without successful compromise, unlike branches on the same infrastructure using
traditional CVSS prioritization, which suffered incidents. Second, we generalize this, showing
five large organizations reduced top-priority items by over 90% (from ~8,000 to <200) without
compromising security outcomes. Third, these reductions were achieved within formal
governance frameworks (documented plans and architectures) that have since been formalized
into open, vendor-neutral standards now being reused in Europe and African/EMEA markets.
Embracing the AI Revolution: The Implication for Research and Education.
(2025-10-30) Mutambara, Arthur
DSM-H as an African-Born Global Framework for Structural Pathology
(CEMA-USK, 2025-10-02) Nsiangani, Kibavuidi
The DSM-H (Diagnostic and Statistical Manual of Human Structural Pathologies) proposes a new way to name harms that do not live inside one person’s “mental disorder” but arise from stable patterns of institutional behaviour. It concentrates on structurally anti-human behaviour clusters (SAHBC / O-SAHBC) that generate preventable damage in health, justice, administration and other vital systems.
This paper places DSM-H in an African psycho-political lineage (Fanon, Amos Wilson, Kimbangu) and within the broader MEN-D work on linguistic colonisation, epistemic warfare and digital harassment. It argues that DSM-H is a logical next step in that lineage: an African-born, globally usable system that treats structural pathology as something observable and measurable, independent of what institutional actors claim to feel or intend. Whether an institution “means well” comes second. What matters first is the pattern of decisions and their consequences for human lives.
We outline the core DSM-H architecture: the Nsiku–Nzola–Bisalu ethical training triad and the MOYO indicators (MOYO-S, a probability scale for life-aligned behaviour, and MOYO-MBI, an index of life deviation and harm). We show how these tools convert African epistemic concepts (Nsiku, Nzola, Bisalu, mbi) into operational metrics. DSM-H starts its testing in the hospital, where structural cruelty cannot hide behind rhetoric, then moves outward to any context where power, reward and identity combine to normalise injury.
DSM-H does not depend on voluntary confession by institutions or professionals. Diagnosis proceeds from pattern and consequence, not from declared motive. This avoids the familiar situation where those who benefit from structural harm can block its naming. DSM-H is built as a protective instrument for populations, with Africa as its starting point and any context of oppression as its horizon. Oppressive systems often recycle the same behavioural templates. DSM-H formalises a safeguard against those templates, from an African vantage point.