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math.NA2026
Structure-Preserving Numerical Schemes for Two-Stage Local and Nonlocal Dispersal Systems
Markjoe O. Uba
We construct and analyze structure-preserving numerical schemes for a two-stage local--nonlocal dispersal system. On general bounded connected smooth habitats, we prove fixed- s…
math.NA2021
4D Segmentation Algorithm with application to 3D+time Image Segmentation
Markjoe Olunna Uba, Karol Mikula, Seol Ah Park
In this paper, we introduce and study a novel segmentation method for 4D images based on surface evolution governed by a nonlinear partial differential equation, the generalized su…