Kandidate of physico-mathematical sciences 1984 (USSR), Doctor of physico-mathematical sciences 1992 (USSR), Livre-Docente in Analysis 2009 (Brazil), Doctor of sciences in financial mathematics 2015 (England)
Main publications:
A. Kushpel, “Sharp Estimates of the Widths of Convolution Classes”, Izvestiya Acad. Nauk USSR, Seria Mat., 52:6 (1988), 1305-1323
S.M. Gomes, A.K. Kushplel,J. Levesley,D.L. Ragozin, “Interpolation on the Torus using sk-Splines with Number Theoretic Knots”, Journ. Approx. Theory, 98 (1999), 56-71
A. Kushpel, “Optimal cubature formulas on compact homogeneous manifolds”, Journ. of Func. Anal., 257 (2009), 1621-1629
A. Kushpel, S.A. Tozoni, “Entropy and Widths of Moltiplier Operators on Two-Point Homogeneous Spaces”, Constr. Approx., 35 (2012), 137-180
A. Kushpel, K. Tas, “The radii of sections of origin-symmetric convex bodies and their applications”, Journ. of Complexity, 62 (2021), 101504
A. K. Kushpel', “Sharp estimates of the widths of convolution classes”, Izv. Akad. Nauk SSSR Ser. Mat., 52:6 (1988), 1305–1322; Math. USSR-Izv., 33:3 (1989), 631–649
A. K. Kushpel', “Sharp estimates of the widths of convolution classes in the space $C_{2\pi}$”, Trudy Mat. Inst. Steklov., 180 (1987), 148–149; Proc. Steklov Inst. Math., 180 (1989), 173–174
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