## General System Theory: Foundations, Development, ApplicationsAn attempt to formulate common laws that apply to virtually every scientific field, this conceptual approach has had a profound impact on such widely diverse disciplines as biology, economics, psychology, and demography. |

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Page 20

Sets of simultaneous

system are, if linear, tiresome to solve even in the case of a few variables; if

nonlinear, they are unsolvable except in special cases (Table 1.1). Table 1.1

Classification ...

Sets of simultaneous

**differential equations**as a way to “model" or define asystem are, if linear, tiresome to solve even in the case of a few variables; if

nonlinear, they are unsolvable except in special cases (Table 1.1). Table 1.1

Classification ...

Page 56

A system can be defined mathematically in various ways. For illustration, we

choose a system of simultaneous

of elements, p, (i = 1, 2, ... n.), by Q, these, for a finite number of elements and in

the ...

A system can be defined mathematically in various ways. For illustration, we

choose a system of simultaneous

**differential equations**. Denoting some measureof elements, p, (i = 1, 2, ... n.), by Q, these, for a finite number of elements and in

the ...

Page 127

In general, we therefore have a set of simultaneous partial

P, as well as T, will, in general, be nonlinear functions of Q, and other system

variables Q, and furthermore functions of the space coordinates x, y, z and time t.

In general, we therefore have a set of simultaneous partial

**differential equations**.P, as well as T, will, in general, be nonlinear functions of Q, and other system

variables Q, and furthermore functions of the space coordinates x, y, z and time t.

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### Contents

Introduction | 8 |

On the History of Systems Theory | 10 |

Trends in Systems Theory | 17 |

Copyright | |

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### Common terms and phrases

allometric animals appears applied approach aspects atoms basic Bertalanffy biological catabolism causality cell characteristics chemical classical classical physics closed systems complex components consideration considered constant contrast cultural cybernetics defined differential equations dynamic elements energy entities entropy equifinality equilibrium essentially evolution example existence experience expressed fact feedback fields formulation function game theory graph theory growth curves homeostasis homeostatic human behavior important increase individual information theory interaction isomorphic kinetics language laws living organism Lotka machine mathematical means mechanisms mechanistic mental metabolic rate modern nature open systems organismic phenomena philosophy physics physiological possible present principle problems processes protein psychology psychophysical quantitative reaction reality regulations relations scientific sense servomechanisms similar so-called social sciences society specific steady structure symbolic system concept system theory teleology theoretical theory of open thermodynamics tion Unity of Science vitalistic Volterra whole world picture

### References to this book

The Roots of Modern Environmentalism David Pepper,John W. Perkins,Martyn J. Youngs No preview available - 1984 |