“…Some of these look very much like a regular Laplace transform [1,30,25,44], while others look quite different [45,15,47]. The k-Laplace transforms [47] look a bit more like Mellin transforms, while the definitions used by Sharma [45], Deshmukh and Gudadhe [15], and Gorty [18] involve cotangents and cosecants in the exponential Laplace kernel. To be sure, the regular Laplace transform has also been used to tackle fractional differential equations, often resulting in a Mittag-Leffler expansion solution [39].…”