symmetric operators
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11—14 of 14 matching pages
11: Mathematical Introduction
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►Other examples are: (a) the notation for the Ferrers functions—also known as associated Legendre functions on the cut—for which existing notations can easily be confused with those for other associated Legendre functions (§14.1); (b) the spherical Bessel functions for which existing notations are unsymmetric and inelegant (§§10.47(i) and 10.47(ii)); and (c) elliptic integrals for which both Legendre’s forms and the more recent symmetric forms are treated fully (Chapter 19).
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complex plane (excluding infinity). | |
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(or ) | forward difference operator: . |
(or ) | backward difference operator: . (See also del operator in the Notations section.) |
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12: Bibliography R
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Normal limit theorems for symmetric random matrices.
Probab. Theory Related Fields 112 (3), pp. 411–423.
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Methods of Modern Mathematical Physics, Vol. 4, Analysis of Operators.
Academic Press, New York.
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On the computation of Lamé functions, of eigenvalues and eigenfunctions of some potential operators.
Z. Angew. Math. Mech. 78 (1), pp. 66–72.
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On the foundations of combinatorial theory. VIII. Finite operator calculus.
J. Math. Anal. Appl. 42, pp. 684–760.
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On Simple Waves with Profiles in the form of some Special Functions—Chebyshev-Hermite, Mathieu, Whittaker—in Two-phase Media.
In Differential Operators and Related Topics, Vol. I (Odessa,
1997),
Operator Theory: Advances and Applications, Vol. 117, pp. 313–322.
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13: 18.28 Askey–Wilson Class
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) such that in the Askey–Wilson case, and in the -Racah case, and both are eigenfunctions of a second order -difference operator similar to (18.27.1).
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►The polynomials are symmetric in the parameters .
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►where the operator
is defined by
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►In Tsujimoto et al. (2012) an extension of the Bannai–Ito polynomials occurs as eigenfunctions of a Dunkl type operator.
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14: 3.11 Approximation Techniques
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►The matrix is symmetric and positive definite, but the system is ill-conditioned when is large because the lower rows of the matrix are approximately proportional to one another.
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►Since , the matrix is again symmetric.
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►In consequence of this structure the number of operations can be reduced to
operations.
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