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Found 168 Documents (Results 1–100)

Spectral neural operators. (English. Russian original) Zbl 07825751

Dokl. Math. 108, Suppl. 2, S226-S232 (2023); translation from Dokl. Ross. Akad. Nauk, Mat. Inform. Protsessy Upr. 514, No. 2, 72-79 (2023).
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Image reconstruction for positron emission tomography based on Chebyshev polynomials. (English) Zbl 1496.92039

Daras, Nicholas J. (ed.) et al., Approximation and computation in science and engineering. Cham: Springer. Springer Optim. Appl. 180, 281-295 (2022).
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Radon-John transforms and spherical harmonics. (English) Zbl 1402.44002

Christensen, Jens Gerlach (ed.) et al., Representation theory and harmonic analysis on symmetric spaces. AMS special session on harmonic analysis, in honor of Gestur Ólafsson’s 65th birthday, Atlanta, GA, USA, January 4, 2017. Proceedings. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-4070-1/pbk; 978-1-4704-4884-4/ebook). Contemporary Mathematics 714, 131-142 (2018).
MSC:  44A12 26A33
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Sharp inequalities for approximations of convolution classes on the real line as the limit case of inequalities for periodic convolutions. (English. Russian original) Zbl 1371.41027

Sib. Math. J. 58, No. 2, 190-204 (2017); translation from Sib. Mat. Zh. 58, No. 2, 251-269 (2017).
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On approximation of Lebedev type transforms. (English) Zbl 1325.44004

Mityushev, Vladimir V. (ed.) et al., Current trends in analysis and its applications. Proceedings of the 9th ISAAC congress, Kraków, Poland, August 5–9, 2013. Cham: Birkhäuser/Springer (ISBN 978-3-319-12576-3/pbk; 978-3-319-12577-0/ebook). Trends in Mathematics. Research Perspectives, 545-552 (2015).
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Numerical inversion of the exponential Radon transform. (English) Zbl 1215.42036

Wen, Guo Chun (ed.) et al., Boundary value problems, integral equations and related problems. Proceedings of the third international conference, Beijing and Baoding, China, August 20–25, 2010. Hackensack, NJ: World Scientific (ISBN 978-981-4327-85-5/hbk; 978-981-4327-86-2/ebook). 132-139 (2011).
MSC:  42C15 44A12
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Applications of Chebyshev polynomials: from theoretical kinematics to practical computations. (English) Zbl 1193.65215

Bultheel, Adhemar (ed.) et al., The birth of numerical analysis. Papers based on the presentations at the symposium, Leuven, The Netherlands, October 29–30, 2007. Hackensack, NJ: World Scientific (ISBN 978-981-283-625-0/hbk; 978-981-283-626-7/ebook). 193-205 (2010).
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Evaluation of certain Mellin transformations in terms of the trigamma and polygamma functions. (English) Zbl 1185.33001

Dominici, Diego (ed.) et al., Special functions and orthogonal polynomials. AMS special session, Tucson, AZ, USA, April 21–22, 2007. Providence, RI: American Mathematical Society (AMS) (ISBN 978-0-8218-4650-6/pbk). Contemporary Mathematics 471, 85-104 (2008).
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Reconstruction algorithm for the brain imaging techniques of PET and SPECT. (English) Zbl 1060.65134

Lipitakis, Elias A. (ed.), HERCMA 2003. Proceedings of the 6th Hellenic-European conference on computer mathematics and its applications, Athens, Greece, September 25–27, 2003. 2 volumes. Athens: LEA (ISBN 960-87275-1-0/set; 960-87275-2-9/v.1; 960-87275-3-7/v.2). 257-273 (2004).
MSC:  65R10 44A12 92C55
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Fast evaluation of discrete integral transforms by Chebyshev and Leja polynomial approximation. (English) Zbl 1023.65133

Bojanov, B. D., Constructive theory of functions. Proceedings of the international conference, Varna, Bulgaria, June 19-23, 2002. Sofia: DARBA. 347-353 (2003).
MSC:  65R10 44A15 65Y20
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Orthogonal functions, moment theory, and continued fractions: theory and applications. Proceedings of a research conference/workshop, Campinas, São Paulo, Brazil, June 19–28, 1996. (English) Zbl 0897.00031

Lecture Notes in Pure and Applied Mathematics. 199. New York, NY: Marcel Dekker. xii, 416 p. (1998).
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Stable look-ahead versions of the Euclidean and Chebyshev algorithms. (English) Zbl 0830.65007

Zahar, R. V. M. (ed.), Approximation and computation: a Festschrift in honor of Walter Gautschi. Proceedings of the Purdue conference, West Lafayette, IN, USA, December 2-5, 1993. Boston, US: Birkhäuser. ISNM, Int. Ser. Numer. Math. 119, 231-260 (1994).
MSC:  65D15 65Q05 65R10 44A60
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On some applications of polynomials in the theory of integral transforms. (English) Zbl 0855.44006

Rassias, Th. M. (ed.) et al., Topics in polynomials of one and several variables and their applications. Volume dedicated to the memory of P. L. Chebyshev (1821-1894). Singapore: World Scientific. 573-580 (1993).
MSC:  44A45 34A25
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Characterizations for the existence of a solution to the moment problem on a finite number of intervals. (English) Zbl 0855.44007

Rassias, Th. M. (ed.) et al., Topics in polynomials of one and several variables and their applications. Volume dedicated to the memory of P. L. Chebyshev (1821-1894). Singapore: World Scientific. 9-33 (1993).
MSC:  44A60
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The Poincaré-Bertrand formula for the Hilbert transform. (English) Zbl 0789.44003

Doust, Ian (ed.) et al., Proceedings of the miniconference on probability and analysis, held at the University of New South Wales, Sydney, Australia, July 24-26, 1991. Canberra: Centre for Mathematics and Its Applications, Australian National University. Proc. Cent. Math. Appl. Aust. Natl. Univ. 29, 171-182 (1991).
MSC:  44A15
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Hilbert space approach to some classical transforms. (English) Zbl 0753.44002

Pitman Research Notes in Mathematics Series. 196. Harlow: Longman Scientific & Technical. New York: John Wiley & Sons, Inc. 203 p. (1989).
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