7. Complex Analysis Flashcards

1
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Definition 7.5
Complex differentiable.
Cauchy-Reimann equations.

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2
Q

Definition 7.6
Analytic (or holomorphic)
Entire.

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3
Q

Theorem 7.7
f is complex diff. at z \in \Omega open iff.

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4
Q

Theorem 7.11
Ratio Test

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5
Q

Theorem 7.12
Root Test

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6
Q

Theorem 7.14
Formula for radius of convergence

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7
Q

Theorem 7.15
For all |z| < R.O.C., f(z) is…

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8
Q

Corolary 7.16
if R.O.C. > 0 then f(z) = …

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9
Q

Theorem 7.17
for all r < R with R > 0 f_k = \sum a_n z^n does what

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10
Q

Definition 7.18
exponential, hyperbolic and trig complex sums.

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11
Q

Proposition 7.19
exponential form of trig and hyperbolic functions

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12
Q

Theorem 7.20
Propoerties of the complex exponential

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13
Q

mod-arg form

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14
Q

Proposition 7.21
Propoerties of the argument

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15
Q

Principal value

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16
Q

complex log

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17
Q

properties of complex log

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18
Q

Principal breanch of the logarithm
branch cut
complex power

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19
Q

complex integration

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20
Q

Definition 7.22
Curve, integral over curve.
piece-wise curves.

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21
Q

Lemma 7.24
The intregral over a curve depends only on orientation of parameterisation.

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22
Q

Length of curve

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23
Q

|dz|

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24
Q

Definition 7.25
d conjugate(z) …

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25
Q

Theorem 7.28
If F analytic on open set and f = dF/dz…

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26
Q

THeorem 7.29
Cauchy’s Theorem

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27
Q

Definiton 7.30
Connected
Simply connected

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28
Q

Theorem 7.31
Continuous deformation of contour theorem

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29
Q

Fundamental contour integral.

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30
Q

Definition 7.32
Interior and exterior.

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31
Q

Theorem 7.33 (Cauchy’s formula)
positive oriented simple closed curve and f is analytic on interitor then f(z) = …

proof

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32
Q

Theorem 7.35
positive oriented simple closed curve and f is analytic on interitor then f^(n)…

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33
Q

Theorem 7.36
Taylor Series Expansion

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34
Q

Theorem 7.38
Liouville’s Theorem
Proof

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35
Q

Theorem 7.39
Fundamental Theorem of Algebra

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36
Q

Theorem 7.40
If f_n ->-> f is a series of analytic functions…

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