Download E-books Plane Algebraic Curves (Student Mathematical Library, V. 15) PDF

By Gerd Fischer

The research of the zeroes of polynomials, which for one variable is basically algebraic, turns into a geometrical idea for numerous variables. during this e-book, Fischer appears to be like on the vintage access aspect to the topic: aircraft algebraic curves. the following one speedy sees the combination of algebra and geometry, in addition to research and topology, that's common of complicated algebraic geometry, yet with out the necessity for complicated recommendations from commutative algebra or the summary equipment of sheaves and schemes. within the first half this publication, Fischer introduces a few simple geometrical points, akin to tangents, singularities, inflection issues, and so forth. the most technical instrument is the idea that of intersection multiplicity and Bézout's theorem. This half culminates within the attractive Plücker formulation, which relate a number of the invariants brought past. the second one a part of the booklet is basically a close define of recent equipment of neighborhood analytic geometry within the context of complicated curves. this gives the greater instruments wanted for a very good realizing of duality and an effective technique of computing intersection multiplicities brought past. therefore, we meet earrings of strength sequence, germs of curves, and formal parametrizations. eventually, during the patching of the neighborhood details, a Riemann floor is linked to an algebraic curve, therefore linking the algebra and the research.

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