Rappoport, Yu. M. The application of approximation method to the computation of modified Bessel function of imaginary order. (Применение аппроксимационного метода к вычислению модифицированных функций Бесселя мнимого индекса.) (Russian) Zbl 1311.65025 Soobshcheniya po Prikladnoĭ Matematike. Moskva: Vychislitel’nyĭ Tsentr, Akademiya Nauk SSSR. 22 p. (1982). MSC: 65D20 33C10 33F05 × Cite Format Result Cite Review PDF
Tubol’tsev, M. F. Application of the theory of Chebyshev approximation to the estimation of parameters of some number systems. (Russian) Zbl 0603.41018 Primen. Funkts. Anal. Teor. Priblizh. 1982, 168-173 (1982). Reviewer: C.Mustăţa MSC: 41A50 94A12 × Cite Format Result Cite Review PDF
Zlatanov, G. Rotation of nets. (Bulgarian. English, Russian summaries) Zbl 0599.53025 Nauchni Tr., Plovdivski Univ. 20, No. 1, 225-231 (1982). MSC: 53B20 × Cite Format Result Cite Review PDF
Zlatanov, G. On the conformal geometry of nets in two-dimensional Riemannian space. (Bulgarian. English, Russian summaries) Zbl 0599.53023 Nauchni Tr., Plovdivski Univ. 20, No. 1, 191-198 (1982). MSC: 53B20 × Cite Format Result Cite Review PDF
Tsareva, B. Some characteristics of Riemannian spaces by means of special geodesic and Chebyshev nets. (Bulgarian. English, Russian summaries) Zbl 0599.53022 Nauchni Tr., Plovdivski Univ. 20, No. 1, 149-156 (1982). MSC: 53B20 × Cite Format Result Cite Review PDF
Zlatanov, G. Some special \({\bar \Pi}\)-nets in a two-dimensional space with affine connection. (Bulgarian. English, Russian summaries) Zbl 0599.53020 Nauchni Tr., Plovdivski Univ. 20, No. 1, 199-206 (1982). MSC: 53B05 × Cite Format Result Cite Review PDF
Kocharyan, G. S. On weighted best approximations by rational functions on the whole real axis. (Russian) Zbl 0599.41043 Uch. Zap. Erevan. Gos. Univ., Estestv. Nauki 1982, No. 1(149), 14-19 (1982). MSC: 41A50 41A20 × Cite Format Result Cite Review PDF
Babaev, M.-B. A. Exact two-sided estimates in the approximation of functions of many variables. (Russian) Zbl 0593.41031 Theory of mappings, its generalizations and applications, Collect. sci. Works, Kiev 1982, 18-29 (1982). MSC: 41A50 41A25 41A63 × Cite Format Result Cite Review PDF
Reuter, R. Über Integralformeln der Einheitssphäre und harmonische Splinefunktionen. (German) Zbl 0593.41024 Veröff. Geod. Inst. Rheinisch-Westfäl. Tech. Hochsch. Aachen 33, 197 p. (1982). MSC: 41A50 41A05 35J05 65D07 65D15 41A15 × Cite Format Result Cite Review PDF
Nguyễn Xuân Lộc; Nguyễn Doãn Tiến Invariant properties of moment spaces. (English) Zbl 0587.41025 Acta Math. Vietnam. 7, No. 1, 3-16 (1982). Reviewer: I.Şerb MSC: 41A65 41A50 × Cite Format Result Cite Review PDF
Nevesenko, N. V.; Oshman, E. V. Metric projection onto convex sets. (English. Russian original) Zbl 0578.41038 Math. Notes 31, 59-64 (1982); translation from Mat. Zametki 31, 117-126 (1982). Reviewer: Tingfan Xie MSC: 41A65 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Gusejnov, Eh. A. Substantiation of the projection method for an integral equation of first kind with a logarithmic singularity of the kernel. (Russian. English summary) Zbl 0576.65130 Dokl., Akad. Nauk Az. SSR 38, No. 2, 10-12 (1982). MSC: 65R20 45E10 × Cite Format Result Cite Review PDF
Nikol’skij, V. N. Boundary sets in a strong sense and the strong uniqueness of elements of the best approximation. (Russian) Zbl 0574.41021 Primen. Funkts. Anal. Teor. Priblizh. 1982, 126-130 (1982). MSC: 41A50 41A52 × Cite Format Result Cite Review PDF
Vakhaniya, N. N.; Chobanyan, S. A. On the problem of best approximation in a space of vector-valued functions. (English. Russian original) Zbl 0574.41019 Sov. Math., Dokl. 25, 565-568 (1982); translation from Dokl. Akad. Nauk SSSR 264, 24-26 (1982). MSC: 41A50 46E30 47B10 60G25 41A65 × Cite Format Result Cite Review PDF
Hasson, Maurice The sharpness of Timan’s theorem on differentiable functions. (English) Zbl 0574.41011 J. Approximation Theory 35, 264-274 (1982). MSC: 41A25 41A10 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Teschers, Winfried Tschebyscheff-Approximation mit Relationen. (German) Zbl 0567.41019 Abteilung Mathematik der Universität Dortmund. 119 S. (1982). MSC: 41A50 × Cite Format Result Cite Review PDF
Canuto, C.; Quarteroni, A. Approximation results for orthogonal polynomials in Sobolev spaces. (English) Zbl 0567.41008 Math. Comput. 38, 67-86 (1982). MSC: 41A10 41A05 × Cite Format Result Cite Review PDF Full Text: DOI
Ganzburg, M. I.; Pichugov, S. A. Invalidity of the elements of best approximation and a theorem of Glaeser. (English) Zbl 0564.41012 Ukr. Math. J. 33, 508-510 (1982). MSC: 41A50 41A65 × Cite Format Result Cite Review PDF Full Text: DOI
Razali, M. R.; Thomas, K. S. Singular integral equations and mixed boundary value problems for harmonic functions. (English) Zbl 0557.65090 Treatment of integral equations by numerical methods, Proc. Symp., Durham 1982, 387-395 (1982). Reviewer: M.Schleiff MSC: 65R20 65E05 31A05 31A25 45E05 × Cite Format Result Cite Review PDF
Gilewicz, Jacek Review of the best Padé approximation technics in practical computation. (English) Zbl 0555.41016 Padé approximation and convergence acceleration technics, 1st French- Polish Meet., Warsaw 1981, 22-36 (1982). Reviewer: M.G.de Bruin MSC: 41A25 41-04 65D05 41-02 × Cite Format Result Cite Review PDF
Kovtunets, V. V. Differentiation with respect to the parameter of the family of k-snakes. (Russian. English summary) Zbl 0554.41027 Dokl. Akad. Nauk Ukr. SSR, Ser. A 1982, No. 7, 12-15 (1982). Reviewer: A.B.Németh MSC: 41A29 41A50 × Cite Format Result Cite Review PDF
Abakumov, Yu. G. On Chebyshev classes of subspaces. (Russian) Zbl 0552.41026 Primen. Funkts. Anal. Teor. Priblizh. 1982, 3-5 (1982). Reviewer: S.Cobzaş MSC: 41A65 × Cite Format Result Cite Review PDF
Milovanović, Gradimir V.; Milovanović, Igor Ž. A generalization of Chebyshev inequality for convex sequences of order k. (English) Zbl 0552.26011 Publ. Elektroteh. Fak., Univ. Beogr., Ser. Mat. Fiz. 735-762, 28-31 (1982). Reviewer: I.Raşa MSC: 26D15 26A51 × Cite Format Result Cite Review PDF
Kocić, Ljubiša M. Continuous linear operators defined on the cone of functions convex with respect to Chebyshev system. (English) Zbl 0551.41040 Publ. Elektroteh. Fak., Univ. Beogr., Ser. Mat. Fiz. 735-762, 32-34 (1982). Reviewer: T.Singh MSC: 41A36 41A50 41A65 × Cite Format Result Cite Review PDF
Baskakov, V. A. On the approximation with the best order in \({\mathbb{C}}\) and \({\mathbb{L}}\). (Russian) Zbl 0549.42004 Primen. Funkts. Anal. Teor. Priblizh. 1982, 15-28 (1982). Reviewer: W.Lenski MSC: 42A10 41A10 41A50 × Cite Format Result Cite Review PDF
Laban, Miloš M. On one property equivalent to the uniqueness of the solution of the Chebyshev’s best approximation problem in a normed linear real vector space. (English) Zbl 0549.41017 Publ. Elektroteh. Fak., Univ. Beogr., Ser. Mat. Fiz. 735-762, 45-49 (1982). Reviewer: P.Achuthan MSC: 41A50 41A65 × Cite Format Result Cite Review PDF
Dem’yanov, V. F.; Rubinov, A. M.; Pecherskaya, N. A.; Daugavet, V. A.; Malozemov, V. N.; Palyaeva, V. N.; Nikulina, V. N.; Shablinskaya, I. R.; Sivtsova, V. K.; Vinogradova, T. K.; Belova, Z. I.; Timoshina, I. R.; Myshkov, S. K.; Karelin, V. V.; Vojton, E. F. Nonsmooth problems of the theory of optimization and control. (Negladkie zadachi teorii optimizatsii i upravleniya). (Russian) Zbl 0547.49001 Leningrad: ”Izdatel’stvo Leningradskogo Universiteta”. 323 p. R. 1.80 (1982). MSC: 49-01 26B05 49K35 28A15 41A50 49K10 90C30 93C05 93B30 × Cite Format Result Cite Review PDF
Pevac, Lazar On approximation in normed spaces. (English) Zbl 0547.41030 Publ. Elektroteh. Fak., Univ. Beogr., Ser. Mat. Fiz. 735-762, 96-98 (1982). Reviewer: E.Deeba MSC: 41A65 41A50 × Cite Format Result Cite Review PDF
Vinogradov, O. M. P-supremal generators and Chebyshev systems. (Russian) Zbl 0547.41028 Primen. Funkts. Anal. Teor. Priblizh. 1982, 50-59 (1982). Reviewer: G.Godini MSC: 41A65 46E05 41A50 × Cite Format Result Cite Review PDF
Pečarić, Josip E.; Janić, Radovan R.; Beesack, Paul R. Note on multidimensional generalizations of Čebyšev’s inequality. (English) Zbl 0547.26012 Publ. Elektroteh. Fak., Univ. Beogr., Ser. Mat. Fiz. 735-762, 15-18 (1982). Reviewer: P.S.Bullen MSC: 26D15 × Cite Format Result Cite Review PDF
Eneduanya, Sylvanus A. N. On the modified Hermite interpolation polynomials. (English) Zbl 0544.41002 Demonstr. Math. 15, 1135-1146 (1982). Reviewer: R.B.Saxena MSC: 41A05 41A10 × Cite Format Result Cite Review PDF Full Text: DOI OA License
Huang, You Qun A note on Williams’ algorithm for interpolating rationals. (English) Zbl 0543.41002 J. Math. Res. Expo. 1982, No. 3, 51-52 (1982). Reviewer: Y.G.Shi MSC: 41A05 65D05 × Cite Format Result Cite Review PDF
Lasser, Rupert Fourier-Stieltjes transforms on hypergroups. (English) Zbl 0542.43004 Analysis 2, 281-303 (1982). Reviewer: H.Günzler MSC: 43A25 42C15 33C45 × Cite Format Result Cite Review PDF Full Text: DOI
Chow, Jeff On the uniqueness of best \(L_ 2[0,1]\) approximation by piecewise polynomials with variable breakpoints. (English) Zbl 0541.41031 Math. Comput. 39, 571-585 (1982). Reviewer: D.Wulbert MSC: 41A52 41A15 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Berens, Hubert Über die beste Approximation im \({\mathbb{R}}^ n\). (German) Zbl 0541.41025 Arch. Math. 39, 376-382 (1982). Reviewer: L.Leindler MSC: 41A50 41A65 × Cite Format Result Cite Review PDF Full Text: DOI
Wang, Jianzhong Best simultaneous \(L_ 1\)-approximations to n functions. (Chinese. English summary) Zbl 0538.41029 Math. Numer. Sin. 4, 30-36 (1982). MSC: 41A28 41A50 × Cite Format Result Cite Review PDF
Blatt, Hans-Peter Strenge Eindeutigkeitskonstanten und Fehlerabschätzungen bei linearer Tschebyscheff-Approximation. (German) Zbl 0538.41007 Numerical methods of approximation theory, Vol. 6, Workshop Oberwolfach 1981, ISNM, Int. Ser. Numer. Math. 59, 9-25 (1982). Reviewer: L.Leindler MSC: 41A10 41A50 41A25 41A52 × Cite Format Result Cite Review PDF
Opfer, G. Computation of T-approximations by complex planar splines. (English) Zbl 0537.65023 Z. Angew. Math. Mech. 62, T342-T344 (1982). MSC: 65E05 65D07 30E10 41A15 41A50 × Cite Format Result Cite Review PDF
Sun, Jiachang An identity for a tridiagonal determinant and its applications. (Chinese. English summary) Zbl 0537.15003 Math. Numer. Sin. 4, 323-327 (1982). MSC: 15A15 15A18 33C45 39A10 × Cite Format Result Cite Review PDF
Klingman, Darwin; Mote, John Generalized network approaches for solving least absolute value and Tchebycheff regression problems. (English) Zbl 0536.65099 Optimization in statistics, TIMS Stud. Manage. Sci. 19, 53-66 (1982). Reviewer: V.Makarov MSC: 65C99 65K05 90C05 62J05 × Cite Format Result Cite Review PDF
Sklar, Michael G.; Armstrong, Ronald D. Least absolute value and Chebyshev estimation utilizing least squares results. (English) Zbl 0536.65009 Math. Program. 24, 346-352 (1982). Reviewer: L.Ciobanu MSC: 65D10 65C99 62J05 × Cite Format Result Cite Review PDF Full Text: DOI
Narang, T. D. On totally complete spaces. (English) Zbl 0536.41038 Math. Educ., Sect. A 16, 4-5 (1982). Reviewer: D.Wulbert MSC: 41A65 41A50 46A11 54E50 × Cite Format Result Cite Review PDF
Respess, J. R. jun.; Cheney, E. W. Best approximation problems in tensor-product spaces. (English) Zbl 0536.41035 Pac. J. Math. 102, 437-446 (1982). Reviewer: D.Wulbert MSC: 41A65 41A63 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Kornejchuk, N. P. Widths in \(L_ p\) of classes of continuous and of differentiable functions, and optimal methods of coding and recovering functions and their derivatives. (English) Zbl 0536.41026 Math. USSR, Izv. 18, 227-247 (1982). MSC: 41A46 41A65 42A99 41A50 41A17 × Cite Format Result Cite Review PDF Full Text: DOI
Yang, Shuguang Sur l’interprétation geométrique de la T-solution d’un système surdéterminé. (French) Zbl 0536.15005 J. Math., Wuhan Univ. 2, 153-161 (1982). MSC: 15A09 15A06 65F20 × Cite Format Result Cite Review PDF
Morozov, V. A. The method of quasisolutions on noncompact sets. (English. Russian original) Zbl 0535.41038 Sov. Math., Dokl. 25, 489-493 (1982); translation from Dokl. Akad. Nauk SSSR 263, 1057-1061 (1982). Reviewer: W.Krabs MSC: 41A65 41A50 65J10 47J05 47A50 65J15 × Cite Format Result Cite Review PDF
Ivanov, Kamen G. On a new characteristic of functions. I. (English) Zbl 0535.41030 Serdica 8, 262-279 (1982). Reviewer: C.Mustăţa MSC: 41A50 41A10 × Cite Format Result Cite Review PDF
Cheney, E. W. Introduction to approximation theory. 2nd ed. (English) Zbl 0535.41001 New York: Chelsea Publishing Company. X, 259 p. $ 14.95 (1982). MSC: 41-01 41A50 41A52 41A20 41A10 41A17 65D15 41A21 42C05 × Cite Format Result Cite Review PDF
Barnsley, M. F.; Geronimo, J. S.; Harrington, A. N.; Dager, L. D. Approximation theory on a snowflake. (English) Zbl 0535.30027 Multivariate approximation theory II, Proc. Conf., Oberwolfach 1982, ISNM 61, 37-41 (1982). Reviewer: D.N.Zarnadze MSC: 30D05 30E10 33C45 × Cite Format Result Cite Review PDF
Muroya, Yoshiaki On coefficient-wise estimates in Chebyshev series for the solutions of nonlinear differential systems. (English) Zbl 0533.65056 Mem. School Sci. Engin., Waseda Univ. 46, 345-382 (1982). Reviewer: K.Burrage MSC: 65L10 34B15 × Cite Format Result Cite Review PDF
Várhelyi, Ágnes On the improving Newton’s method for solving nonlinear real equations. (English) Zbl 0533.65024 Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Comput. 3, 85-91 (1982). Reviewer: B.Döring MSC: 65H05 × Cite Format Result Cite Review PDF
Janc, Mirko A descent algorithm for \(\varepsilon\)-approximation of continuous functions with values in unitary space. (English) Zbl 0533.65005 Mat. Vesn. 6(19)(34), 269-277 (1982). Reviewer: Gerhard Opfer (Hamburg) MSC: 65D15 41A50 × Cite Format Result Cite Review PDF
Schnatz, Klaus Georg Approximationstheorie in metrischen Vektorräumen. (German) Zbl 0533.41032 Fachbereich Mathematik der Johann Wolfgang Goethe-Universität Frankfurt am Main. 186 S. (1982). Reviewer: J.Horwáth MSC: 41A65 41A50 49J40 65D15 × Cite Format Result Cite Review PDF
Blatt, H.-P. Fehlerabschätzung bei der Tschebyscheff-Approximation. (German) Zbl 0533.41015 Z. Angew. Math. Mech. 62, T316-T317 (1982). Reviewer: L.Leindler MSC: 41A25 41A50 × Cite Format Result Cite Review PDF
Akopyan, V. N. On a periodic contact problem of linear theory of viscoelasticity. (Russian. English summary) Zbl 0532.73094 Izv. Akad. Nauk Arm. SSR, Mekh. 35, No. 1, 3-15 (1982). MSC: 74A55 74M15 74K20 74D99 × Cite Format Result Cite Review PDF
Savić, Vladimir N. On an extremal problem in the space of continuous functions in \(n\) variables. (Serbo-Croatian. English summary) Zbl 0532.41033 Mat. Vesn. 6(19)(34), 165-172 (1982). Reviewer: B.Crstici MSC: 41A50 41A65 × Cite Format Result Cite Review PDF
Pinkus, A.; Shisha, O. Variations on the Chebyshev and \(L^ q\) theories of best approximation. (English) Zbl 0532.41032 J. Approximation Theory 35, 148-168 (1982). Reviewer: S.Cobzaş MSC: 41A50 41A10 41A65 × Cite Format Result Cite Review PDF Full Text: DOI
Hirano, K.; Matsue, H.; Mulk, M. Z. Design of digital filter suitable for microprocessor implementation. (English) Zbl 0531.93057 Theory and application of digital control, Proc. IFAC Symp., New Delhi 1982, 291-296 (1982). MSC: 93E11 93C57 94C30 30C15 60G35 62M20 93E25 × Cite Format Result Cite Review PDF
Verwer, J. G. A note on a Runge-Kutta-Chebyshev method. (English) Zbl 0531.65040 Z. Angew. Math. Mech. 62, 561-563 (1982). Reviewer: A.Coţiu MSC: 65L05 65N40 35K60 × Cite Format Result Cite Review PDF Full Text: DOI
Kornejchuk, N. P.; Ligun, A. A.; Doronin, V. G. Approximation with constraints. (Approksimatsiya s ogranicheniyami). (Russian) Zbl 0531.41001 Kiev: ”Naukova Dumka”. 252 p. R. 2.30 (1982). Reviewer: L.Ciobanu MSC: 41-01 41A50 41A65 × Cite Format Result Cite Review PDF
Polovinkin, V. I. On the existence of best cubature formulas. (Russian) Zbl 0528.41017 Vopr. Vychisl. Prikl. Mat. 69, 145-153 (1982). MSC: 41A55 41A50 × Cite Format Result Cite Review PDF
Ibragimov, G. Sh. The generalized Hölder spaces \(H(\omega_ 1,\dots ,\omega_ n)\) of functions of several variables. (Russian) Zbl 0528.41016 Boundary value problems for nonlinear equations, Collect. sci. Works, Novosibirsk 1982, 74-80 (1982). MSC: 41A50 42A10 × Cite Format Result Cite Review PDF
Hsu, Naihung Best approximation by Franklin polynomials. (English) Zbl 0528.41014 Tamkang J. Math. 13, 247-254 (1982). MSC: 41A50 41A30 41A10 41A25 × Cite Format Result Cite Review PDF
Nashed, M. Z. On well-posed and ill-posed extremal problems. (English) Zbl 0527.49020 Nonlinear phenomena in mathematical sciences, Proc. int. Conf., Arlington/Tex. 1980, 737-745 (1982). MSC: 49K40 41A50 49K27 49J45 × Cite Format Result Cite Review PDF
Mason, J. C. Minimal projections and near-best approximations by multivariate polynomial expansion and interpolation. (English) Zbl 0527.41022 Multivariate approximation theory II, Proc. Conf., Oberwolfach 1982, ISNM 61, 241-254 (1982). MSC: 41A65 41A50 × Cite Format Result Cite Review PDF
Kroó, A. Some theorems on unicity of multivariate \(L^ 1\)-approximation. (English) Zbl 0527.41016 Acta Math. Acad. Sci. Hung. 40, 179-189 (1982). MSC: 41A52 41A50 41A65 × Cite Format Result Cite Review PDF Full Text: DOI
Busse, H. G.; Zilling, R. Zur Parameterschätzung auf der Basis der Tschebyscheff-Approximation und der Methode der kleinsten Absolutbeträge. (German) Zbl 0526.62039 Wiss. Z., Tech. Hochsch. Leipz. 6, 327-332 (1982). MSC: 62G05 62G20 62F10 41A50 × Cite Format Result Cite Review PDF
Bridges, Douglas S. Lipschitz constants and moduli of continuity for the Chebyshev projection. (English) Zbl 0526.41021 Proc. Am. Math. Soc. 85, 557-561 (1982). MSC: 41A50 03F65 × Cite Format Result Cite Review PDF Full Text: DOI
Chauhan, B. P. S. A proof of Telyakovski-Gopengauz’s theorem through an interpolation process of S. N. Bernstein. (English) Zbl 0526.41005 Indian J. Pure Appl. Math. 13, 1433-1438 (1982). MSC: 41A05 41A10 41A36 × Cite Format Result Cite Review PDF
Buslaev, A. P.; Magaril-Il’yaev, G. G.; Tikhomirov, V. M. On the existence of extremal functions in inequalities for derivatives. (Russian) Zbl 0526.26006 Mat. Zametki 32, No. 6, 823-834 (1982). MSC: 26D10 41A50 × Cite Format Result Cite Review PDF
Lanne, A. A.; Malozemov, V. N. Optimal synthesis of a class of nonlinear circuits with harmonic inputs. (English. Russian original) Zbl 0525.94013 Eng. Cybern. 20, No. 4, 56-64 (1982); translation from Izv. Akad. Nauk SSSR, Tekh. Kibern. 1982, No. 4, 58-66 (1982). MSC: 94C05 × Cite Format Result Cite Review PDF
Jia, Peizhang Design methods of recursive digital filters. (Chinese) Zbl 0525.93042 Math. Pract. Theory 1982, No. 4, 1-15 (1982). MSC: 93C57 33C45 94C30 93C55 93D99 × Cite Format Result Cite Review PDF
Vlassenbroeck, J.; Janssen, H.; van Dooren, R. A direct Chebyshev approach with practical applicability in optimal control problems. (English) Zbl 0525.93025 Control science and technology for the progress of society, Proc. 8th trienn. World Congr. IFAC, Kyoto 1981, Vol. 1, Control theory, 417-422 (1982). MSC: 93B40 42C10 93C15 33C45 93C10 70M20 × Cite Format Result Cite Review PDF
Smarzewski, Ryszard Generalized isotone approximation and related topics. (English) Zbl 0525.41037 J. Math. Anal. Appl. 87, 332-353 (1982). MSC: 41A65 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Narang, T. D. A note on Chebyshev centres. (English) Zbl 0525.41033 Mat. Vesn. 6(19)(34), 123-126 (1982). MSC: 41A65 41A50 × Cite Format Result Cite Review PDF
Babaev, M.-B. A. Extremal elements and the value of the best approximation of a monotone function on \(R^ n\) by sums of functions of fewer variables. (English. Russian original) Zbl 0525.41024 Sov. Math., Dokl. 26, 1-4 (1982); translation from Dokl. Akad. Nauk SSSR 265, 11-13 (1982). MSC: 41A45 41A50 26A15 × Cite Format Result Cite Review PDF
Dyjak, Czeslaw On a characterization of trigonometrical and hyperbolic functions by functional equations. (English) Zbl 0525.39004 Publ. Inst. Math., Nouv. Sér. 32(46), 45-48 (1982). MSC: 39B12 26A09 × Cite Format Result Cite Review PDF
Berdyshev, V. I. The metric projection onto the class \(H(\Omega)\). (English. Russian original) Zbl 0524.41019 Sov. Math., Dokl. 26, 402-404 (1982); translation from Dokl. Akad. Nauk SSSR 266, 777-779 (1982). MSC: 41A65 41A52 46E15 54C60 41A50 × Cite Format Result Cite Review PDF
Deutsch, Frank Which closed convex subsets of an inner product space are Chebyshev? (English) Zbl 0524.41015 Multivariate approximation theory II, Proc. Conf., Oberwolfach 1982, ISNM 61, 125-129 (1982). MSC: 41A52 41A50 41A65 × Cite Format Result Cite Review PDF
Boyd, John P. A Chebyshev polynomial rate-of-convergence theorem for Stieltjes functions. (English) Zbl 0524.41014 Math. Comput. 39, 201-206 (1982). MSC: 41A50 42C10 41A25 41A60 33C45 41A10 × Cite Format Result Cite Review PDF Full Text: DOI
Basu, Dipak Kumar A novel extension of Lee’s trilateral generating relation involving Tchebychev and Charlier polynomials. (English) Zbl 0524.33010 Pure Math. Manuscr. 1, 45-47 (1982). MSC: 33C80 33E99 × Cite Format Result Cite Review PDF
Shen, Xiechang Historical introduction to approximation theory. I. (Chinese) Zbl 0524.01010 J. Math. Res. Expo. 1982, No. 4, 171-180 (1982). Reviewer: Jean-Claude Martzloff (Paris) MSC: 01A50 41-03 × Cite Format Result Cite Review PDF
Tichatschke, R.; Schwartz, B. Ein Verfahren der zulaessigen Richtungen für das lineare kontinuierliche Tschebyscheff-Problem. (German) Zbl 0523.90077 Math. Operationsforsch. Stat., Ser. Optimization 13, 501-509 (1982). MSC: 90C30 90C34 65D15 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Schroetter, Stefan Computation of the inverse Laplace transform in the form of a Fourier- Chebyshev series. (Russian) Zbl 0522.65083 Bull. Appl. Math. 122-136, 69-78 (1982). MSC: 65R10 65D15 44A10 65S05 × Cite Format Result Cite Review PDF
Deutsch, Frank Linear selections for the metric projection. (English) Zbl 0522.41027 J. Funct. Anal. 49, 269-292 (1982). MSC: 41A65 41A50 41A52 × Cite Format Result Cite Review PDF Full Text: DOI
Levasseur, Kenneth M.; Lewis, James T. Least-squares approximation with restricted range. (English) Zbl 0522.41026 J. Approximation Theory 36, 304-316 (1982). MSC: 41A65 41A50 41A99 × Cite Format Result Cite Review PDF Full Text: DOI
Pevnyj, A. B. On the best quadrature formula of Markov type in a class of functions. (English. Russian original) Zbl 0522.41022 U.S.S.R. Comput. Math. Math. Phys. 22, No. 3, 65-72 (1982); translation from Zh. Vychisl. Mat. Mat. Fiz. 22, 559-565 (1982). MSC: 41A55 41A50 × Cite Format Result Cite Review PDF Full Text: DOI
Ramazanov, A. K. On best approximating rational functions in integral metrics. (English. Russian original) Zbl 0522.41018 Mosc. Univ. Math. Bull. 37, No. 5, 53-58 (1982); translation from Vestn. Mosk. Univ., Ser. I 1982, No. 5, 43-48 (1982). MSC: 41A50 41A10 41A20 × Cite Format Result Cite Review PDF
Homentcovschi, Dorel Conformal mapping of multiply connected domains exterior to thin regions. (English) Zbl 0522.30006 Z. Angew. Math. Phys. 33, 503-512 (1982). MSC: 30C30 30C20 × Cite Format Result Cite Review PDF Full Text: DOI
Bridges, Douglas S. Recent progress in constructive approximation theory. (English) Zbl 0521.41022 The L. E. J. Brouwer Centen. Symp., Proc. Conf., Noordwijkerhout/ Holl. 1981, Stud. Logic Found. Math. 110, 41-50 (1982). MSC: 41A50 26A15 × Cite Format Result Cite Review PDF
Kofanov, V. A. Approximation in the mean of classes of differentiable functions by algebraic polynomials. (English. Russian original) Zbl 0521.41003 Sov. Math., Dokl. 25, 224-226 (1982); translation from Dokl. Akad. Nauk SSSR 262, 1304-1306 (1982). MSC: 41A10 41A17 41A50 × Cite Format Result Cite Review PDF
Bunyakovskij, V. Ya.; Somov, I. I.; Chebyshev, P. L.; Steklov, V. A. [Yushkevich, A. P.; Savich, A. N.; Perevoshchikov, D.; Uspenskij, Ya. V.; Ioffe, A. F.] Proposals for the election of German mathematicians to the Academy of Science of the USSR. (Russian) Zbl 0521.01028 Istor.-Mat. Issled. 26, 294-324 (1982). MSC: 01A74 × Cite Format Result Cite Review PDF
Sinajskij, E. S. On the almost Chebyshevian approximation to certain operators of the hereditary theory of elasticity. (English. Russian original) Zbl 0519.73015 J. Appl. Math. Mech. 46, 365-368 (1983); translation from Prikl. Mat. Mekh. 46, 467-471 (1982). MSC: 74B99 41A50 45P05 41A10 45D05 45E10 × Cite Format Result Cite Review PDF Full Text: DOI
Brannigan, M. The strict Chebyshev solution of overdetermined systems of linear equations with rank deficient matrix. (English) Zbl 0519.65022 Numer. Math. 40, 307-318 (1982). MSC: 65F20 65F25 65F35 × Cite Format Result Cite Review PDF Full Text: DOI EuDML
Rack, Heinz-Joachim Abschätzungen für Koeffizienten und Koeffizienten-Teilsummen bei Polynomen in einer und in mehreren Veränderlichen. (German) Zbl 0519.41008 Abteilung Mathematik der Universität Dortmund. 120 S. (1982). MSC: 41A10 41-02 41A50 33C45 46E30 41A63 × Cite Format Result Cite Review PDF
Bach-Graf, Christa Lösung von Randwertaufgaben gewöhnlicher Differentialgleichungen durch Tschebyscheff-Entwicklungen. (German) Zbl 0519.34007 Fachbereich Mathematik und Informatik der Fernuniversität Hagen. 78 S. (1982). MSC: 34B05 65L10 × Cite Format Result Cite Review PDF
Mo, Ye Integrability theorems for series of polynomial terms. (Chinese) Zbl 0519.33008 J. Shandong Univ., Nat. Sci. Ed. 1982, No. 2, 1-25 (1982). MSC: 33C45 40A05 40A10 × Cite Format Result Cite Review PDF
Renaud, J-C. On modular representation algebras and a class of matrix algebras. (English) Zbl 0519.20012 J. Aust. Math. Soc., Ser. A 33, 351-355 (1982). MSC: 20C20 20C05 × Cite Format Result Cite Review PDF
Mititelu, Stefan Extremum conditions in the maximum component minimum problem. (English) Zbl 0518.49018 Boll. Unione Mat. Ital., VI. Ser., A 1, 393-401 (1982). MSC: 49K35 49M37 90C30 × Cite Format Result Cite Review PDF
Kroó, András On strong unicity of best approximation in \(C(R)\). (English) Zbl 0518.41023 Numer. Funct. Anal. Optim. 4, 437-443 (1982). MSC: 41A52 41A50 × Cite Format Result Cite Review PDF Full Text: DOI