Science and Education Publishing Applied Mathematics and Physics 2333-4886 4 1 2016 10 15 Proca-Maxwell Equations for Dyons with Quaternion 9 15 EN B. C. Chanyal Department of Physics, G.B. Pant University of Agriculture & Technology, Pantnagar-263145 (U.K.) India S. K. Chanyal Virendra Singh A. S. Rawat AMP2016412 10.12691/amp-4-1-2 2016 4 26 2016 8 19 2016 10 13 The quaternions are first hyper-complex numbers, having four-dimensional structure, which may be useful to express the 4-dimensional theory of dyons carrying both electric and magnetic charges. Keeping in mind t'Hooft's monopole solutions and the fact that despite the potential importance of massive monopole, we discuss a connection between quaternionic complex field, to the generalized electromagnetic field equations of massive dyons. Starting with the Euclidean space-time structure and two four-components theory of dyons, we represent the generalized charge, potential, field and current source in quaternion form with real and imaginary part of electric and magnetic constituents of dyons. We have established the quaternionic formulation of generalized complex-electromagnetic fields equations, generalized Proca-Maxwell's (GPM) equations and potential wave equations for massive dyons. Thus, the quaternion formulation be adopted in a better way to understand the explanation of complex-field equations as the candidate for the existence of massive monopoles and dyons where the complex parameters be described as the constituents of quaternion.