Read e-book online Fractals, random shapes, and point fields: methods of PDF

By Professor Dietrich Stoyan, Dr. Helga Stoyan

ISBN-10: 0471937576

ISBN-13: 9780471937579

Partially I the reader is brought to the tools of measuring the fractal measurement of abnormal geometric buildings. half II demonstrates vital glossy tools for the statistical research of random shapes. The statistical conception of element fields, with and with out marks, is brought partially III. all of the 3 sections concentrates at the mathematical principles, instead of distinctive proofs, and will be learn independently.

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Extra info for Fractals, random shapes, and point fields: methods of geometrical statistics

Example text

Nu. luin uj J id II .. n u. n u. l J is nothing but a map of the appropriate type. k l = 11 lj.. n Uk' defining an element l J of H1(X, GL(n,O)). The same sort of analysis as we just went through with vector bundles shows that, H1(X, GL(n,O)) is equivalent to {isomorphism classes of locally free sheaves of rank n}. This is consistent with the previous association from vector bundles to locally free sheaves - so these notions are essentially equivalent. ' (G), etc. , then take the associated bundles.

X «:n (or i J -----' in the obvious way; the condition on triple overlaps allows us to do this consistently. We call the set of all such maps {11 Q .. } with respect to the. } of X according to which 1 both Y and Y' are defined and such that the map U. x CCn -> U. x a::n l l . (v)) 1 2 U. -> i a:n = Matnxn(O::). Note that the maps cp i must satisfy 36 II. 2. 4 (All maps will be required to be differentiable, continuous, holomorphic, or algebraic, according to context. ) Conversely, from a collection of maps {cp i} satisfying II ij

X THEOREM The map 44 II. 12 is an isomorphism. • , zn} An element f of I' (1Pn, 01Pn(m)hol) is a holomorphic function on a:n+l _{O} such that f(A. z) = A. mf(z) for all z. By Hartogs' theorem f is holomorphic in a:n+l. (This shows already that f=O unless m :;:: 0). f =. •. ,1n o n Represent f as a power series io in zo··· zn A. m O! • • 10" •. in series representations. m. by the uniqueness of power This shows that f is a homogeneous polynomial of degree 45 II. 3. l Chapter Two Sheaf cohomology and computations on IPn.

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Fractals, random shapes, and point fields: methods of geometrical statistics by Professor Dietrich Stoyan, Dr. Helga Stoyan


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