On calculus with a quaternionic variable and its characteristic Cauchy-Riemann type equations

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/223518We show sufficient and necessary conditions, in terms of some partial differential equations with variable coefficients, for a quaternionic function to admit a continuous derivative in a open set in the sense of C. Schwartz.Complex VariablesOn calculus with a quaternionic variable and its characteristic Cauchy-Riemann type equationstext