We focus on energy complexity, a Boolean function measure related closely to circuit design. Given $$\mathcal {C}$$ over the standard basis $$\{\vee _2,\wedge _2,\lnot \}$$ , complexity of denoted by $${{\,\mathrm{EC}\,}}(\mathcal {C})$$ is maximum number its activated inner gates all inputs. The f, $${{\,\mathrm{EC}\,}}(f)$$ minimum circuits computing f. Recently, K. Dinesh et al. (Internation...

The SYM-H and AE geomagnetic indices can be considered as proxies of the response Earth’s magnetosphere ionosphere to solar magnetic activity. They indirectly monitor some electric current systems which flow in whose dynamics are directly or related Sun–Earth interaction. Consequently, their temporal changes reflect processes occurring near-Earth space, contribute differently overall magnetosph...