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MAT 3730 Complex Variables. Section 1.6 Planar Sets. http://myhome.spu.edu/lauw. Preview. For real variables, theorems are typically stated for functions defined on intervals (open, closed) We will introduce the corresponding concepts in the complex plane
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MAT 3730Complex Variables Section 1.6 Planar Sets http://myhome.spu.edu/lauw
Preview • For real variables, theorems are typically stated for functions defined on intervals (open, closed) • We will introduce the corresponding concepts in the complex plane • Mostly the same as defined in R2 (MAT 3238?)
Domain • Many results in real and complex analysis are true only in domains. Below is an example in calculus (real analysis). We will take a look at why the connectedness is important.
Idea Theorem
Definition 9 Region T or F: If D is a domain, then it is a region.
Definition 9 Region T or F: If D is a domain, then it is a region. T or F: If D is a region, then it is a domain.
Question Can you name a unbounded set?
Definitions Dependency nhood Interior Points Boundary Points Bounded Set Open Set Closed Set Connected Set Domain Region
Next Class • Read Section 2.1 • Review Onto Functions