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11: 26.12 Plane Partitions
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βΊAn equivalent definition is that a plane partition is a finite subset of with the property that if and , then must be an element of .
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βΊThe number of plane partitions of is denoted by , with .
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βΊin it is
…in it is
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βΊin it is
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12: 18.8 Differential Equations
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βΊ
Table 18.8.1: Classical OP’s: differential equations .
βΊ
βΊ
βΊ
βΊItem 11 of Table 18.8.1 yields (18.39.36) for .
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13: 34.2 Definition: Symbol
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βΊThe quantities in the symbol are called angular momenta.
…where is any permutation of .
The corresponding projective quantum numbers
are given by
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βΊ
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βΊ
34.2.4
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14: 24.12 Zeros
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βΊIn the interval the only zeros of , , are , and the only zeros of , , are .
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βΊThen the zeros in the interval are .
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βΊWhen is odd ,
, and as with fixed,
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βΊThen when , and
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βΊWhen is odd ,
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15: 22.17 Moduli Outside the Interval [0,1]
§22.17 Moduli Outside the Interval [0,1]
… βΊJacobian elliptic functions with real moduli in the intervals and , or with purely imaginary moduli are related to functions with moduli in the interval by the following formulas. … βΊ16: 26.16 Multiset Permutations
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βΊLet be the multiset that has copies of , .
…The number of elements in is the multinomial coefficient (§26.4) .
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βΊThe definitions of inversion number and major index can be extended to permutations of a multiset such as .
Thus , and
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βΊand again with we have
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17: 35.8 Generalized Hypergeometric Functions of Matrix Argument
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βΊLet and be nonnegative integers; ; ; , , .
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βΊIf for some satisfying , , then the series expansion (35.8.1) terminates.
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βΊIf , then (35.8.1) converges absolutely for and diverges for .
βΊIf , then (35.8.1) diverges unless it terminates.
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βΊLet ; one of the be a negative integer; , , , .
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18: 15.8 Transformations of Variable
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βΊThe hypergeometric functions that correspond to Groups 1 and 2 have as variable.
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βΊ
Group 1 Group 3
… βΊGroup 2 Group 1
… βΊ , in Groups 1 and 2. … βΊThis is a quadratic transformation between two cases in Group 1. …19: 26.6 Other Lattice Path Numbers
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βΊ
is the number of paths from to that are composed of directed line segments of the form , , or .
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βΊ
is the number of lattice paths from to that stay on or above the line and are composed of directed line segments of the form , , or .
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βΊ
is the number of lattice paths from to that stay on or above the line , are composed of directed line segments of the form or , and for which there are exactly occurrences at which a segment of the form is followed by a segment of the form .
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βΊ
is the number of paths from to that stay on or above the diagonal and are composed of directed line segments of the form , , or .
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βΊ
§26.6(iv) Identities
…20: 26.11 Integer Partitions: Compositions
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βΊFor example, there are eight compositions of 4: , and .
denotes the number of compositions of , and is the number of compositions into exactly
parts.
is the number of compositions of with no 1’s, where again .
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βΊThe Fibonacci numbers are determined recursively by
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βΊAdditional information on Fibonacci numbers can be found in Rosen et al. (2000, pp. 140–145).