xdifference operators
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1—10 of 86 matching pages
1: 1.18 Linear Second Order Differential Operators and Eigenfunction Expansions
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Bounded and Unbounded Linear Operators
… ► … ► … ►SelfAdjoint Operators
… ►Spectrum of an Operator
…2: 25.17 Physical Applications
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►This relates to a suggestion of Hilbert and Pólya that the zeros are eigenvalues of some operator, and the Riemann hypothesis is true if that operator is Hermitian.
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3: 18.42 Software
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►Also included is a website (CAOP) operated by a university department.
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4: 26.19 Mathematical Applications
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►These have applications in operations research, probability theory, and statistics.
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5: Brian R. Judd
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►Judd’s books include Operator Techniques in Atomic Spectroscopy, published by McGrawHill in 1963 and reprinted by Princeton University Press in 1998, Second
Quantization and Atomic Spectroscopy, published by Johns Hopkins in 1967, Topics in Atomic and Nuclear Theory (with J.
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6: 13.27 Mathematical Applications
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►Vilenkin (1968, Chapter 8) constructs irreducible representations of this group, in which the diagonal matrices correspond to operators of multiplication by an exponential function.
The other group elements correspond to integral operators whose kernels can be expressed in terms of Whittaker functions.
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7: 18.38 Mathematical Applications
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►A further operator, the socalled Casimir operator
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Dunkl Type Operators and Nonsymmetric Orthogonal Polynomials
►The Dunkl operator, introduced by Dunkl (1989), is an operator associated with reflection groups or root systems which has terms involving first order partial derivatives and reflection terms. … ►In the onevariable case the Dunkl operator eigenvalue equation … …8: 26.22 Software
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►Also included are websites operated by university departments and consortia, research institutions, and peerreviewed journals.
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9: 34.9 Graphical Method
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►The graphical method establishes a onetoone correspondence between an analytic expression and a diagram by assigning a graphical symbol to each function and operation of the analytic expression.
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10: Guide to Searching the DLMF
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►Search queries are made up of terms, textual phrases, and math expressions, combined with Boolean operators:
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Boolean operator:
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proximity operator:
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and and or
adj, prec/n, and near/n, where n is any positive natural number.
$ 
stands for any number of alphanumeric characters 

(the more conventional * is reserved for the multiplication operator) 

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