Abel
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7 matching pages ♦
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7 matching pages
1: 22.18 Mathematical Applications
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§22.18(iv) Elliptic Curves and the Jacobi–Abel Addition Theorem
… ►For any two points and on this curve, their sum , always a third point on the curve, is defined by the Jacobi–Abel addition law …a construction due to Abel; see Whittaker and Watson (1927, pp. 442, 496–497). …2: 1.15 Summability Methods
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Abel Summability
… ►Abel Means
… ► is a harmonic function in polar coordinates (1.9.27), and … ►Here is the Abel (or Poisson) sum of , and has the series representation … ►Abel Summability
…3: 2.10 Sums and Sequences
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►Another version is the Abel–Plana formula:
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(c)
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The first infinite integral in (2.10.2) converges.
4: 1.13 Differential Equations
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►Then the following relation is known as Abel’s identity
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5: Bibliography B
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Abelian Functions: Abel’s Theorem and the Allied Theory of Theta Functions.
Cambridge University Press, Cambridge.
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6: 1.2 Elementary Algebra
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§1.2(iv) Means
…7: Errata
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Section 1.13
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In Equation (1.13.4), the determinant form of the two-argument Wronskian
1.13.4
was added as an equality. In ¶Wronskian (in §1.13(i)), immediately below Equation (1.13.4), a sentence was added indicating that in general the -argument Wronskian is given by , where . Immediately below Equation (1.13.4), a sentence was added giving the definition of the -argument Wronskian. It is explained just above (1.13.5) that this equation is often referred to as Abel’s identity. Immediately below Equation (1.13.5), a sentence was added explaining how it generalizes for th-order differential equations. A reference to Ince (1926, §5.2) was added.