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Spekulatywny zwrot czy powrót do źródeł? O „kwartetach” Martina Heideggera i Grahama Harmana

100%

Żywiołek A.

Przestrzenie Teorii

2020

nr 34

245-265

The article contains reflections on the “speculative realism”, a direction in 21st century philosophy initiated by Graham Harman, whose books (The Quadruple Object, Object-Oriented Ontology. A New Theory of Everything) continue and process Martin Heidegger’s concept of “the quadruple” (das Geviert), and they also use the ideas of such thinkers as Edmund Husserl and Bruno Latour. The basic problem formulated in this text arises from the following questions: is speculative realism another turn in scientific research, or rather a return to those sources of thinking that take into account the complexity and the irreducibility of reality to any metaphysical instance? What is the role of the “speculative turn” in cultural studies, in various interpretative practices?

On the realization theory of polynomial matrices and the algebraic structure of pure generalized state space systems

100%

Vardulakis A.-I. , Karampetakis N. , Antoniou E. , Tictopoulou E.

International Journal of Applied Mathematics and Computer Science

2009

tom 19

nr 1

77-88

We review the realization theory of polynomial (transfer function) matrices via "pure" generalized state space system models. The concept of an irreducible-at-infinity generalized state space realization of a polynomial matrix is defined and the mechanism of the "cancellations" of "decoupling zeros at infinity" is closely examined. The difference between the concepts of irreducibility and minimality of generalized state space realizations of polynomial (transfer function) matrices is pointed out and the associated concepts of dynamic and non-dynamic variables appearing in generalized state space realizations are also examined.

On transitive orientations of G-ê

100%

Andresen M.

Discussiones Mathematicae Graph Theory

2009

tom 29

nr 3

423-467

A comparability graph is a graph whose edges can be oriented transitively. Given a comparability graph G = (V,E) and an arbitrary edge ê∈ E we explore the question whether the graph G-ê, obtained by removing the undirected edge ê, is a comparability graph as well. We define a new substructure of implication classes and present a complete mathematical characterization of all those edges.

On the realization theory of polynomial matrices and the algebraic structure of pure generalized state space systems

84%

Vardulakis A. I. G. , Karampetakis N. P. , Antoniou E. N. , Tictopoulou E.

International Journal of Applied Mathematics and Computer Science

2009

tom Vol. 19, no 1

77-88

We review the realization theory of polynomial (transfer function) matrices via 'pure' generalized state space system models. The concept of an irreducible-at-infinity generalized state space realization of a polynomial matrix is defined and the mechanism of the 'cancellations' of 'decoupling zeros at infinity' is closely examined. The difference between the concepts of irreducibility and minimality of generalized state space realizations of polynomial (transfer function) matrices is pointed out and the associated concepts of dynamic and non-dynamic variables appearing in generalized state space realizations are also examined.

Un nuevo concepto de ‘persona’ en la filosofía wojtyliana desde el análisis fenomenológico y metafísico en Persona y acción

67%

García Casas P.

Studia Gilsoniana

2021

tom 10

nr 3

635-666

This article discusses Karol Wojtyła’s study on the concept of “person” and its anthropological foundations. It refers to his great book: The Acting Person, in which Wojtyła approaches the reality of the person from the perspective of the person’s action. The article shows that, in his book, Wojtyła goes beyond classical Thomism by following the great intuitions of Personalism and Phenomenology and putting them at the service of an adequate anthropology that does justice to the reality of the person. Then it examines Wojtyła’s claims about: (1) the person as a source of validation of moral experience, (2) experience as a source of knowledge, (3) consciousness and the efficient causality of the person, (4) the transcendence of the person in action (self-determination), (5) the integration of the person in action, and finally (5) the person’s subjectivity and irreducibility. The article is aimed at delivering a framework to elaborate a metaethics that would contribute to the human person’s happiness and fulfillment.