“…The solutions of the linear equation systems are ubiquitous in essentially all quantitative areas of human endeavor, including industry and science. Linear equation systems play an important role in the areas of such as linear algebra in Choguard reaction systems [
1], pattern formation [
2], Keller–Segel systems [
3, 4], computer science, mathematical computing, optimization, signal processing, engineering, numerical analysis, computer vision, many applications of control theory, and machine learning [
5–10]. Sylvester linear equation, which is the most important one of these linear equations, has many uses such as control system, stability, eigenstructure assignment, pole assignment, and observer design (e.g., [
11–15] Bevis, Hall and Hartwig [
16]) that have studied the equation
known as the Sylvester‐conjugate equation where
and
are complex
and
matrices, respectively, and
denotes the matrix obtained by taking the complex conjugate of each element of
.…”