Let B be an A∞-category with finitely many objects (X1, . . . ,Xm). We impose some technical restrictions (finite-dimensional hom spaces, strict unitality). Consider the directed subcategory A ⊂ B, which retains only morphisms from Xi to Xj for i < j, together with the identity endomorphisms. Following [10], we associate to the pair (A,B) a further object D, which is a filtered A∞-category with...

Green’s function, an analytical approach in inhomogeneous linear differential equations, is the impulse response, which is applied for deriving the wave equation solution in composite materials mediums. This paper investigates the study of SH wave’s transmission influenced by concentrated point source disturbance in piezomagnetic material resting over heterogeneous half-space. Green function ap...