TY - JOUR TI - The vector calculus with respect to monotone functions applied to heat conduction problems AU - Yang Xiao-Jun JN - Thermal Science PY - 2020 VL - 24 IS - 6 SP - 3949 EP - 3959 PT - Article AB - This paper addresses the theory of the vector calculus with respect to monotone functions for the first time. The Green-like theorem, Stokes-like theorem, Gauss-like theorem, and Green-like identities are obtained with the aid of the notation of Gibbs. The results are used to model the heat-conduction problems arising in the complex phenomenon.