Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Probability calculus theory

In Section V it will be shown that the quaternion structure of the fields that correspond to the electromagnetic field tensor and its current density source, implies a very important consequence for electromagnetism. It is that the local limit of the time component of the four-current density yields a derived normalization. The latter is the condition that was imposed (originally by Max Bom) to interpret quantum mechanics as a probability calculus. Here, it is a derived result that is an asymptotic feature (in the flat spacetime limit) of a field theory that may not generally be interpreted in terms of probabilities. Thus, the derivation of the electromagnetic field equations in general relativity reveals, as a bonus, a natural normalization condition that is conventionally imposed in quantum mechanics. [Pg.680]

Equation (58) is the normalization condition that was postulated by Max Bom, in his interpretation of Schrodinger s nonrelativistic wave mechanics as a probability calculus. As we see here, the derived normalization is not a general relation in the full, generally covariant expression of the field theory. [Pg.704]

The subjectivist interpretation of probability calculus was understood by Popper, (1976 48, and Appendix IX, Third Comment [1958]) as a theory that interprets probability as a measure of lack of knowledge or of partial knowledge. [Pg.60]

The objective interpretation of probability calculus (Popper, 1976 48, and Appendix IX, Third Comment [1958]) is necessary because no result of statistical sampling is ever inconsistent with a statistical theory unless we make them with the help of. .. rejection rules (Lakatos, 1974 179 see also Nagel, 1971 366). It is under these rejection rules that probability calculus and logical probability approach each other these are also the conditions under which Popper explored the relationship of Fisher s likelihood function to his degree of corroboration, and the conditions arise only if the random sample is large and (e) is a statistical report asserting a good fit (Farris et ah, 2001). In addition to the above, in order to maintain an objective interpretation of probability calculus, Popper also required that once the specified conditions are obtained, we must proceed to submit (e) itself to a critical test, that is, try to find observable states of affairs that falsify (e). [Pg.60]

Calculus computer science geometry measure theory metric topology probability set theory. [Pg.820]

This book presents in a popular manner the elements of game theory—the mathematical study of conflict situations whose purpose is to work out recommendations for a rational behaviour of each of the participants of a conflict situation. Some methods for solving matrix games are given. There are but few proofs in the book, the basic propositions of the theory being illustrated by worked examples. Various conflict situations are considered. To read the book, it is sufficient to be familiar with the elements of probability theory and those of calculus. [Pg.160]

From these basic properties of possibility measures, the full calculus of possibility theory, analogous to the calculus of probability theory, has been developed. Its primary role is to deal with incomplete information expressed in terms of fuzzy propositions. Due to limited space, it is not possible to cover here details of this calculus. [Pg.47]

Sir Isaac Newton, one of the giants of science. You probably know of him from his theory of gravitation. In addition, he made enormous contributions to the understanding of many other aspects of physics, including the nature and behavior of hght, optics, and the laws of motion. He is credited with the discoveries of differential calculus and of expansions into infinite series. [Pg.195]

As the next step in the development of the kinetic theory of gases, we proceed to consider the law of distribution of energy or velocity in a gas, i.e., in particular, the law of dependence of the quantity n, employed above, on the velocity. While up to this point a few simple ideas have been sufficient for our purpose, we must now definitely call to our aid the statistical methods of the Calculus of Probabilities. [Pg.375]

And how useful to public economy has been the application of these same calculi in the organisation of life annuities, tontines, private savings banks, benefit schemes and insurance policies of every kind Ought not the application of the calculus of probability to be applied to that part of public economy which includes the theory of measures, money, banking, financial operations, as well as taxation, its legal distribution, its actual distribution which so often contradicts the law and its consequences for all sections of the social system ... [Pg.165]

Kekule read a transcript of this discussion that appeared in the Chemical News. "I will probably need to criticize [Brodie s] nonsense," he wrote to Baeyer "I have in fact promised The Laboratory a couple of articles on theory and atomicity, naturally cannot speak of atomicity without first having touched upon the various attacks on the atomic theory itself." This proved to be only the second (and the last) English-language paper of his life. Kekul6 had carefully studied Brodie s "chemical calculus," and he demolished central elements of it with great effectiveness. It was, he concluded, hyper-hypothetical, arbitrary, inconsistent, and "based on pure caprice." He declared his own position on the matter ... [Pg.225]

Using examples from physical and organic chemistry, this book demonstrates how the disciplines of thermodynamics and information theory are intertwined. Accessible to curiosity-driven chemists with knowledge of basic calculus, probability, and statistics, the book provides a fresh perspective on time-honored subjects such as state transformations, heat and work exchanges, and chemical reactions. [Pg.226]

Member of famous Swiss mathematical family. Founder of the calculus of variations, contributed to the development of calculus and probability theory. Studied infinite series. [Pg.133]

Starting from sixteen century onwards, the probability theory, calculus and mathematical formulations took over in the description of the natural real world system with uncertainty. It was assumed to follow the characteristics of random uncertainty, where the input and output variables of a system had numerical set of values with uncertain occurrences and magnitudes. This implied that the connection system of inputs to outputs was also random in behavior, i.e., the outcomes of such a system are strictly a matter of chance, and therefore, a sequence of event predictions is impossible. Not all uncertainty is random, and hence, cannot be modeled by the probability theory. At this junction, another uncertainty methodology, statistics comes into view, because a random process can be described precisely by the statistics of the long run averages, standard deviations, correlation coefficients, etc. Only numerical randomness can be described by the probability theory and statistics. [Pg.93]

This approach is proposed in the p-languages theory and it was developed in the context of synthesis of control strategy by supervision (Wang Ray 2004). The obtained result shows that, in dependability studies, the calculus of events sequences probability is not possible if this p-lan-guage is coupled with embedded DTMC without any cautions (if the terminal state of a sequence is not an absorbent state, its probability is always equal to zero). [Pg.221]

Bernoulli Daniel (1700-1782) Swith math., early formulation of principle of energy conservation, pressure as result of particles impact on the container, differential calculus application in theory of probabilities, acoustics ( Hydrodynamica 1738)... [Pg.454]

We now consider probability theory, and its applications in stochastic simulation. First, we define some basic probabihstic concepts, and demonstrate how they may be used to model physical phenomena. Next, we derive some important probability distributions, in particular, the Gaussian (normal) and Poisson distributions. Following this is a treatment of stochastic calculus, with a particular focus upon Brownian dynamics. Monte Carlo methods are then presented, with apphcations in statistical physics, integration, and global minimization (simulated annealing). Finally, genetic optimization is discussed. This chapter serves as a prelude to the discussion of statistics and parameter estimation, in which the Monte Carlo method will prove highly usefiil in Bayesian analysis. [Pg.317]

We next consider an important application of probability theory to physical science, the theory of Brownian motion, and introduce the subject of stochastic calculus. Let us consider the jc-direction motion of a small spherical particle immersed in a Newtonian fluid. As observed by the botanist Robert Brown in the early 1800s, the motion of the particle is very irregular, and apparently random. Let Vx t) be the x-direction velocity as a function of time. For a particle of mass m and radius R in a fluid of viscosity /x, the equation of motion is... [Pg.338]

Next follows a detailed discussion of probability theory, stochastic simulation, statistics, and parameter estimation. As engineering becomes more focused upon the molecular level, stochastic simulation techniques gain in importance. Particular attention is paid to Brownian dynamics, stochastic calculus, and Monte Carlo simulation. Statistics and parameter estimation are addressed from a Bayesian viewpoint, in which Monte Carlo simulation proves a powerful and general tool for making inferences and testing hypotheses from experimental data. [Pg.486]


See other pages where Probability calculus theory is mentioned: [Pg.704]    [Pg.60]    [Pg.99]    [Pg.41]    [Pg.41]    [Pg.214]    [Pg.1395]    [Pg.450]    [Pg.581]    [Pg.157]    [Pg.40]    [Pg.739]    [Pg.502]    [Pg.181]    [Pg.24]    [Pg.253]    [Pg.23]    [Pg.48]    [Pg.91]    [Pg.201]    [Pg.68]    [Pg.455]    [Pg.13]    [Pg.135]    [Pg.3838]   
See also in sourсe #XX -- [ Pg.17 ]




SEARCH



Probability calculus

Probability theory

© 2024 chempedia.info