It gives you the representation of regular Borel measures as continuous linear functionals Riesz Representation theorem. Every compact Hausdorff space is normal. Sign up using Facebook. A discrete space looks finite on small scales. A compact space looks finite on large scales.
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Hint: Use mathematical induction. These are the candidates for maxima and minima. Our next result is fairly obvious except for one subtle point: one needs to know or believe that a continuous function on a closed interval assumes its maximum and minimum. We proved this in Theorem Proof By Theorem See Fig. Let f be a continuous function on [a, b] that is differentiable on a, b. Proof Let L be the function whose graph is the straight line connecting a, f a to b, f b , i.
Clearly g is continuous on [a, b] and differentiable on a, b. Then f is a constant function on a, b. Proof Apply Corollary Corollary We need some terminology in order to give another useful corollary of the Mean Value Theorem.
Let f be a real-valued function defined on an interval I. The signum function and the postage-stamp function in Exercises Let f be a differentiable function on an interval a, b.
The remaining cases are left to Exercise Exercise Let f be a differentiable function on a, b. Theorem We next show how to differentiate the inverse of a differentiable function.
Let f be a one-to-one differentiable function on an open interval I. By Theorem By 1 and Corollary We give one example. If the conclusion holds, give an example of a point x satisfying 2 of Theorem If the conclusion fails, state which hypotheses of the Mean Value Theorem fail.
Posted on Nov 29, in Issue no. The Discovery of Grounded Theory: Strategies fro qualitative research. New York: Aldine DeGruyter. Glaser, Ph. Currently, the general approaches to the analysis of qualitative data are these: 1. If the analyst wishes to convert qualitative data into crudely quantifiable form so that he can provisionally test a hypothesis, he codes the data first and then analyzes it. If the analyst wishes only to generate theoretical ideasnew categories and their properties, hypotheses and interrelated hypotheses- he cannot be confined to the practice of coding first and then analyzing the data since, in generating theory, he is constantly redesigning and reintegrating his theoretical notions as he reviews his material.
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Historical development[ edit ] In the 19th century, several disparate mathematical properties were understood that would later be seen as consequences of compactness. On the one hand, Bernard Bolzano had been aware that any bounded sequence of points in the line or plane, for instance has a subsequence that must eventually get arbitrarily close to some other point, called a limit point. The process could then be repeated by dividing the resulting smaller interval into smaller and smaller parts—until it closes down on the desired limit point. This ultimately led to the notion of a compact operator as an offshoot of the general notion of a compact space.
HEWITT THE ROLE OF COMPACTNESS IN ANALYSIS PDF