This paper examines properties and interrelations of several concepts of generalized concavity. It shows that the class of functions that are both 'generalized concave' and 'generalized convex' is ...

Difference between Concave vs Convex Lens: Isn’t physics one of those subjects that almost every student is scared of? Well why not, given the complexity of ...

Abstract. As one of the main results we prove that if 𝑓 has Lagrange unique property then 𝑓 is strictly convex or concave (we do not assume continuity of the derivative), Theorem 2.1. We give two ...

Curved shapes have always sparked architects' fascination for evoking nature's beauty, fluidity, dynamism, and complexity. To replicate these shapes, however, is no easy task. From their two- or three ...

A spherical mirror is that mirror whose reflecting surface is the part of a hollow sphere of glass. Spherical mirrors are of two types: concave mirrors and convex mirrors. In a concave mirror ...

A pioneer of postwar abstract sculpture, Kiichi Sumikawa is known for his use of clay, wood, stone and other natural materials. He has also been involved in many public works and structures, including ...