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Entropy of Reissner–Nordström 3D Black Hole in Roegenian Economics

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Faculty of Applied Sciences, Department of Mathematics-Informatics, University Politehnica of Bucharest, Splaiul Independentei 313, Bucharest 060042, Romania
2
Di.Gi.ES, University Mediterranea of Reggio Calabria, Seconda Torre, Loc. Feo di Vito, 89125 Reggio Calabria, Italy
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Institute of Geodynamics “Sabba S. Stefanescu”, Romanian Academy, Dr. Gerota 19-21, Bucharest 020032, Romania
*
Author to whom correspondence should be addressed.
Entropy 2019, 21(5), 509; https://doi.org/10.3390/e21050509
Received: 18 April 2019 / Revised: 4 May 2019 / Accepted: 16 May 2019 / Published: 19 May 2019
The subject of this paper is to analyse the Mathematical Principia of Economic 3D Black Holes in Roegenian economics. In detail, we study two main problems: (i) mathematical origin of economic 3D black holes; and (ii) entropy and internal political stability depending on national income and the total investment, for economic Reissner–Nordström (RN) 3D black hole. To solve these problems, it was necessary to jump from macroeconomic side to microeconomic side (a substantial approach as they are so different), to complete the thermodynamics–economics dictionary with new entities, and to introduce the flow between two macroeconomic systems. The main contribution is about introducing and studying the Schwarzschild-type metric on an economic 4D system, together with Rindler coordinates, Einstein 4D partial differential equations (PDEs), and economic RN 3D black holes. In addition, we introduce some economic Ricci type flows or waves, for further research. View Full-Text
Keywords: thermodynamics–economics dictionary; economic Einstein 4D PDEs; economic Schwarzschild-type metric; economic 3D black holes; economic entropy thermodynamics–economics dictionary; economic Einstein 4D PDEs; economic Schwarzschild-type metric; economic 3D black holes; economic entropy
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Udriste, C.; Ferrara, M.; Tevy, I.; Zugravescu, D.; Munteanu, F. Entropy of Reissner–Nordström 3D Black Hole in Roegenian Economics. Entropy 2019, 21, 509.

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