Brunclík Kubát (éd) Semi Presidentialism

This book introduces the concept of a semi-closed ecosystem, which is necessary for the social implementation of plant production, such as agriculture, in harmony with the environment. While aiming at achieving a sustainable balance of human activities and environmental protection, this book focuses on the material cycle within each semi-closed system listed below.

In every democratic polity there exist individuals and groups who hold some but not all of the essential elements of citizenship. Scholars who study citizenship routinely grasp for shared concepts and language that identify forms of membership held by migrants, children, the disabled, and other groups of individuals who, for various reasons, are neither full citizens nor non-citizens.

Semi-infinite optimization is a vivid field of active research. Recently semi­ infinite optimization in a general form has attracted a lot of attention, not only because of its surprising structural aspects, but also due to the large number of applications which can be formulated as general semi-infinite programs.

This book presents a smooth and unified transitional framework from generalised fractional programming, with a finite number of variables and a finite number of constraints, to semi-infinite fractional programming, where a number of variables are finite but with infinite constraints. It focuses on empowering graduate students, faculty and other research enthusiasts to pursue more accelerated research advances with significant interdisciplinary applications without borders.