Titlebook: Algebraic Combinatorics; Lectures at a Summer Peter Orlik,Volkmar Welker,Gunnar Fløystad Textbook 2007 Springer-Verlag Berlin Heidelberg 20

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Robert Glinwood,James D. Blandeen with some personal bias from a big set of examples of cellular resolutions that have emerged over the last years. We try to be a bit more complete by covering in the exercises some of the examples that are left out.

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Peter Orlik,Volkmar Welker,Gunnar FløystadPeter Orlik is THE expert on arrangements, and Volkmar Welker an excellent mathematician of the younger generation.The Nordfjordeid summer school consistently offer high quality

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Introductionider . points in the real line ℝ or in the complex line ℂ. We shall see later that these seemingly innocent examples lead to interesting problems. In dimension 2, the Selberg arrangement of five lines is shown below. We shall use this arrangement to illustrate definitions and results in Section 1.11

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Introductionr, we will present and review combinatorial and geometric methods for studying minimal free resolutions of ideals in polynomial rings. Before we give the exposition of the topics we will spend time in order to outline the basic mathematical theory behind. Thus these notes will also include definitio

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