sums of products
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11—20 of 115 matching pages
11: 1.2 Elementary Algebra
12: 1.18 Linear Second Order Differential Operators and Eigenfunction Expansions
13: Mathematical Introduction
14: 27.4 Euler Products and Dirichlet Series
15: 27.6 Divisor Sums
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27.6.2
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►Generating functions, Euler products, and Möbius inversion are used to evaluate many sums extended over divisors.
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16: Bibliography C
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On the representation of a large even integer as the sum of a prime and the product of at most two primes.
Kexue Tongbao (Foreign Lang. Ed.) 17, pp. 385–386.
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17: 21.7 Riemann Surfaces
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21.7.17
18: 21.6 Products
19: 16.14 Partial Differential Equations
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►In addition to the four Appell functions there are other sums of double series that cannot be expressed as a product of two functions, and which satisfy pairs of linear partial differential equations of the second order.
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20: 1.10 Functions of a Complex Variable
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►The product
, with for all , converges iff converges; and it converges absolutely iff converges.
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