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Search: All articles in the CJM digital archive with keyword classical

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1. CJM 2008 (vol 60 pp. 241)

Alexandrova, Ivana
 Semi-Classical Wavefront Set and Fourier Integral Operators Here we define and prove some properties of the semi-classical wavefront set. We also define and study semi-classical Fourier integral operators and prove a generalization of Egorov's theorem to manifolds of different dimensions. Keywords:wavefront set, Fourier integral operators, Egorov theorem, semi-classical analysisCategories:35S30, 35A27, 58J40, 81Q20

2. CJM 2004 (vol 56 pp. 1068)

Steinbach, Anja; Van Maldeghem, Hendrik
 Regular Embeddings of Generalized Hexagons We classify the generalized hexagons which are laxly embedded in projective space such that the embedding is flat and polarized. Besides the standard examples related to the hexagons defined over the algebraic groups of type $\ssG_2$, $^3\ssD_4$ and $^6\ssD_4$ (and occurring in projective dimensions $5,6,7$), we find new examples in unbounded dimension related to the mixed groups of type $\ssG_2$. Keywords:Moufang generalized hexagons, embeddings, mixed hexagons, classical, hexagonsCategories:51E12, 51A45

3. CJM 1997 (vol 49 pp. 520)

Ismail, Mourad E. H.; Stanton, Dennis
 Classical orthogonal polynomials as moments We show that the Meixner, Pollaczek, Meixner-Pollaczek, the continuous $q$-ultraspherical polynomials and Al-Salam-Chihara polynomials, in certain normalization, are moments of probability measures. We use this fact to derive bilinear and multilinear generating functions for some of these polynomials. We also comment on the corresponding formulas for the Charlier, Hermite and Laguerre polynomials. Keywords:Classical orthogonal polynomials, \ACP, continuous, $q$-ultraspherical polynomials, generating functions, multilinear, generating functions, transformation formulas, umbral calculusCategories:33D45, 33D20, 33C45, 30E05
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