On robust multiplication method for higher even-dimensional rhotrices

Rhotrices (heart-oriented) are often multiplied either by heart-based or row-column multiplication method. The element-wise multiplication method for higher even-dimensional rhotrices has recently been introduced in [9]. However, this type of multiplication method, though simple, is less robust. Hence, we present a multiplication method called “Robust Multiplication Method” (RMM) for higher even-dimensional rhotrices (hl-rhotrices), and a number of rediscovered properties of hl-rhotrices. Analysis and examples of RMM for some hl-rhotrices are presented for demonstration purposes.