contour
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11: 31.10 Integral Equations and Representations
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►for a suitable contour
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…The contour
must be such that
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►Here is a normalization constant and is the contour of Example 1.
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►for suitable contours
, .
…The contours
, must be chosen so that
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12: 36.3 Visualizations of Canonical Integrals
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►In Figure 36.3.13(a) points of confluence of phase contours are zeros of ; similarly for other contour plots in this subsection.
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Figure 36.3.15: Phase of elliptic umbilic canonical integral .
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Magnify
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(a) Contour plot. | (b) Density plot. |
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Figure 36.3.16: Phase of elliptic umbilic canonical integral .
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Magnify
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(a) Contour plot. | (b) Density plot. |
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Figure 36.3.17: Phase of elliptic umbilic canonical integral .
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Magnify
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(a) Contour plot. | (b) Density plot. |
13: 1.9 Calculus of a Complex Variable
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§1.9(iii) Integration
… ►A simple closed contour is a simple contour, except that . … ►If is continuous within and on a simple closed contour and analytic within , then … ►Winding Number
…14: 1.10 Functions of a Complex Variable
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►Let be a simple closed contour consisting of a segment of the real axis and a contour in the upper half-plane joining the ends of .
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►and the integration contour is described once in the positive sense.
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►Each contour is called a cut.
…(Or more generally, a simple contour that starts at the center and terminates on the boundary.)
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§1.10(viii) Functions Defined by Contour Integrals
…15: 18.10 Integral Representations
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§18.10(iii) Contour Integral Representations
►Table 18.10.1 gives contour integral representations of the form ►
18.10.8
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►Here is a simple closed contour encircling once in the positive sense.
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16: 31.6 Path-Multiplicative Solutions
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►This denotes a set of solutions of (31.2.1) with the property that if we pass around a simple closed contour in the -plane that encircles and once in the positive sense, but not the remaining finite singularity, then the solution is multiplied by a constant factor .
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17: 31.9 Orthogonality
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31.9.2
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►The integration path is called a Pochhammer double-loop
contour (compare Figure 5.12.3).
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►and the integration paths , are Pochhammer double-loop contours encircling distinct pairs of singularities , , .
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18: 2.4 Contour Integrals
§2.4 Contour Integrals
… ►The most successful results are obtained on moving the integration contour as far to the left as possible. … ►Let denote the path for the contour integral ►
2.4.10
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►and assigning an appropriate value to to modify the contour, the approximating integral is reducible to an Airy function or a Scorer function (§§9.2, 9.12).
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19: 13.16 Integral Representations
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§13.16(ii) Contour Integrals
►For contour integral representations combine (13.14.2) and (13.14.3) with §13.4(ii). … ►where the contour of integration separates the poles of from those of . … ►where the contour of integration separates the poles of from those of . …where the contour of integration passes all the poles of on the right-hand side.20: 21.9 Integrable Equations
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