Edit Profile (opens in new tab) Zajíček, Luděk Co-Author Distance Author ID: zajicek.ludek Published as: Zajíček, Luděk; Zajíček, L.; Zajicek, Ludek; Zajicek, L.; Zajícek, L.; Zajícek, Ludek; Zajícek, Luděk; Zajícěk, Luděk; Zajiček, L. more...less Homepage: https://www2.karlin.mff.cuni.cz/~zajicek/ External Links: MGP Documents Indexed: 135 Publications since 1970, including 1 Book 2 Further Contributions Co-Authors: 29 Co-Authors with 71 Joint Publications 356 Co-Co-Authors all top 5 Co-Authors 65 single-authored 12 Veselý, Libor 9 Preiss, David 8 Duda, Jakub 7 Holický, Petr 5 Lukes, Jaroslav 5 Malý, Jan 5 Rataj, Jan 5 Zelený, Miroslav 4 Pokorný, Dušan 3 Nekvinda, Aleš 2 Csörnyei, Marianna 2 Kalis, Jan 2 Koc, Martin 2 Kryštof, Václav 2 Pavlica, David 2 Tišer, Jaroslav 2 Weil, Clifford E. 1 Balcar, Bohuslav 1 Bečvář, Jindřich 1 Börger, Reinhard 1 Danes, Josef 1 De Vries, Jan (jun.) 1 Dierolf, Peter 1 Fabian, Martin 1 Franek, Frantisek 1 Frolík, Zdeněk 1 Fuka, Jaroslav 1 Grzegorek, Edward 1 Gząślewicz, R. 1 Hofmann, Gerald 1 Janicka, Liliana 1 Johanis, Michal 1 Kalenda, Ondřej F. K. 1 Kopecká, Eva 1 Kossaczká, Marta 1 Kotecký, Roman 1 Kulpa, Wladyslaw 1 Kürsten, Klaus-Detlef 1 Mera, Maria Eugenia 1 Morán, Manuel 1 Nádeník, Zbyněk 1 Nájares, J. R. 1 Netuka, Ivan 1 Pełczyński, Aleksander 1 Pol, Roman 1 Ponomarev, Stanislav P. 1 Reiterman, Jan 1 Rodl, Vojtech 1 Rosický, Jiří 1 Schachermayer, Walter 1 Šmídek, M. 1 Thomas, Erik G. F. 1 Topsøe, Flemming 1 van Mill, Jan 1 Vilimovskiý, J. 1 Voigt, Jurgen 1 Whitfield, M. 1 Zahradník, Miloš 1 Zizler, Vaclav E. all top 5 Serials 24 Commentationes Mathematicae Universitatis Carolinae 18 Real Analysis Exchange 13 Journal of Convex Analysis 12 Czechoslovak Mathematical Journal 6 Časopis Pro Pěstování Matematiky 6 Proceedings of the American Mathematical Society 5 Acta Universitatis Carolinae. Mathematica et Physica 5 Journal of Mathematical Analysis and Applications 4 Fundamenta Mathematicae 4 Mathematica Bohemica 4 Atti del Seminario Matematico e Fisico dell’Università di Modena 3 Colloquium Mathematicum 3 Supplemento ai Rendiconti del Circolo Matemàtico di Palermo. Serie II 2 Mathematische Nachrichten 2 Acta Mathematica Hungarica 2 Pokroky Matematiky, Fyziky & Astronomie 2 Abstract and Applied Analysis 1 American Mathematical Monthly 1 Houston Journal of Mathematics 1 Israel Journal of Mathematics 1 Nonlinearity 1 Revue Roumaine de Mathématiques Pures et Appliquées 1 Rocky Mountain Journal of Mathematics 1 Studia Mathematica 1 Control and Cybernetics 1 Dissertationes Mathematicae 1 Indiana University Mathematics Journal 1 Journal of the London Mathematical Society. Second Series 1 Mathematische Annalen 1 Mathematika 1 Proceedings of the Edinburgh Mathematical Society. Series II 1 Topology and its Applications 1 Acta Mathematica Universitatis Comenianae. New Series 1 Bulletin of the Polish Academy of Sciences, Mathematics 1 Tatra Mountains Mathematical Publications 1 Lecture Notes in Mathematics 1 Dějiny Matematiky / History of Mathematics all top 5 Fields 83 Real functions (26-XX) 54 Functional analysis (46-XX) 28 Measure and integration (28-XX) 21 General topology (54-XX) 20 Calculus of variations and optimal control; optimization (49-XX) 10 Operator theory (47-XX) 8 Differential geometry (53-XX) 7 Convex and discrete geometry (52-XX) 6 Potential theory (31-XX) 6 Approximations and expansions (41-XX) 6 Global analysis, analysis on manifolds (58-XX) 4 Functions of a complex variable (30-XX) 3 History and biography (01-XX) 2 Mathematical logic and foundations (03-XX) 2 Partial differential equations (35-XX) 1 General and overarching topics; collections (00-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Geometry (51-XX) 1 Manifolds and cell complexes (57-XX) 1 Probability theory and stochastic processes (60-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 90 Publications have been cited 629 times in 442 Documents Cited by ▼ Year ▼ On \(\sigma\)-porous sets in abstract spaces. Zbl 1098.28003Zajíček, L. 71 2005 Porosity and \(\sigma\)-porosity. Zbl 0666.26003Zajíček, L. 71 1988 Fine topology methods in real analysis and potential theory. Zbl 0607.31001Lukeš, Jaroslav; Malý, Jan; Zajíček, Luděk 66 1986 On the Fréchet differentiability of distance functions. Zbl 0581.41028Zajíček, L. 33 1984 Delta-convex mappings between Banach spaces and applications. Zbl 0685.46027Veselý, L.; Zajíček, L. 30 1989 Sets of \(\sigma\)-porosity and sets of \(\sigma\)-porosity \((q)\). Zbl 0341.30026Zajicek, Ludek 27 1976 Directional derivatives of Lipschitz functions. Zbl 1022.46026Preiss, D.; Zajíček, L. 20 2001 On the differentiation of convex functions in finite and infinite dimensional spaces. Zbl 0429.46007Zajicek, Ludek 18 1979 Porosity, \(\sigma\)-porosity and measures. Zbl 1026.28001Mera, M. E.; Morán, M.; Preiss, D.; Zajíček, L. 18 2003 On the structure of sets with positive reach. Zbl 1375.26026Rataj, Jan; Zajíček, Luděk 15 2017 Differentiability of the distance function and points of multi-valuedness of the metric projection in Banach space. Zbl 0527.41028Zajicek, Ludek 13 1983 A simple proof of the Rademacher theorem. Zbl 0669.26005Nekvinda, Aleš; Zajíček, Luděk 10 1988 On d.c. functions and mappings. Zbl 1072.46025Veselý, Libor; Duda, Jakub; Zajíček, Luděk 9 2003 A joint generalization of Whitney’s extension theorem and Aversa-Laczkovich-Preiss’ extension theorem. Zbl 1241.26008Koc, Martin; Zajíček, Luděk 9 2012 On the points of multiplicity of monotone operators. Zbl 0404.47025Zajicek, Ludek 8 1978 Generic Fréchet differentiability on Asplund spaces via a.e. strict differentiability on many lines. Zbl 1245.46033Zajícek, L. 8 2012 Frechet differentiability, strict differentiability and subdifferentiability. Zbl 0760.46038Zajíček, Luděk 6 1991 Fréchet differentiation of convex functions in a Banach space with a separable dual. Zbl 0521.46034Preiss, D.; Zajíček, L. 6 1984 On differentiability properties of typical continuous functions and Haar null sets. Zbl 1089.26003Zajícek, L. 6 2006 On residuality of the set of rotund norms on a Banach space. Zbl 0465.46003Fabian, M.; Zajicek, L.; Zizler, V. 6 1982 On the points of multivaluedness of metric projections in separable Banach spaces. Zbl 0382.46007Zajicek, Ludek 6 1978 Smallness of sets of nondifferentiability of convex functions in non- separable Banach spaces. Zbl 0768.58005Zajíček, Luděk 5 1991 Morse-Sard theorem for d.c. functions and mappings on \(\mathbb R^2\). Zbl 1112.26017Pavlica, D.; Zajíček, L. 5 2006 Stronger estimates of smallness of sets of Fréchet nondifferentiabiliy of convex functions. Zbl 0547.46026Preiss, D.; Zajíček, L. 5 1984 On compositions of d.c. functions and mappings. Zbl 1182.46011Veselý, Libor; Zajícek, Luděk 5 2009 Differentiability via curves in Banach spaces homeomorphisms. Zbl 1148.26008Duda, Jakub; Zajíček, Luděk 5 2007 Porosity, \({\mathcal I}\)-density topology and abstract density topologies. Zbl 0641.26004Zajíček, Luděk 5 1987 Extensions of real and vector functions of one variable which preserve differentiability. Zbl 1112.26007Nekvinda, A.; Zajíček, L. 4 2005 On connections between delta-convex mappings and convex operators. Zbl 1115.47048Veselý, Libor; Zajícek, Ludek 4 2006 Second order differentiability and Lipschitz smooth points of convex functionals. Zbl 0956.58002Matoušková, Eva; Zajíček, Luděk 4 1998 On extensions of d. c. functions and convex functions. Zbl 1189.26024Veselý, Libor; Zajícěk, Luděk 4 2010 Differentiability of approximately convex, semiconcave and strongly paraconvex functions. Zbl 1140.46021Zajícek, L. 4 2008 Approximate differentiation: Jarník points. Zbl 0814.26005Malý, Jan; Zajíček, Luděk 4 1991 Inscribing compact non-\(\sigma\)-porous sets into analytic non-\(\sigma\)-porous sets. Zbl 1086.54025Zelený, Miroslav; Zajíček, Luděk 4 2005 On the directions of segments and \(r\)-dimensional balls on a convex surface. Zbl 1127.52005Pavlica, David; Zajíček, Luděk 4 2007 On the structure of WDC sets. Zbl 1429.26022Pokorný, Dušan; Rataj, Jan; Zajíček, Luděk 4 2019 On \(\sigma\)-porous sets and Borel sets. Zbl 0692.54024Zajíček, Luděk 4 1989 Convex functions with non-Borel set of Gâteaux differentiability points. Zbl 0970.46026Holický, P.; Šmídek, M.; Zajíček, L. 4 1998 Smallness of singular sets of semiconvex functions in separable Banach spaces. Zbl 1269.49016Duda, Jakub; Zajícek, Ludek 4 2013 Curves in Banach spaces which allow a \(C^{2}\)-parameterization. Zbl 1225.26059Duda, Jakub; Zajíček, Luděk 3 2011 Sigma-porous sets in products of metric spaces and sigma-directionally porous sets in Banach spaces. Zbl 0942.28002Preiss, D.; Zajíček, L. 3 1999 Small non-\(\sigma\)-porous sets in topologically complete metric spaces. Zbl 0909.28001Zajíček, L. 3 1998 Semiconvex functions: representations as suprema of smooth functions and extensions. Zbl 1168.49015Duda, Jakub; Zajícek, L. 3 2009 On vector functions of bounded convexity. Zbl 1199.47242Veselý, Libor; Zajíček, Luděk 3 2008 Products of non-\(\sigma\)-porous sets and Foran systems. Zbl 0877.54023Zajíček, L. 3 1996 A note on the gradient problem. Zbl 0879.26041Holický, P.; Malý, J.; Zajíček, L.; Weil, C. 3 1997 Critical values and level sets of distance functions in Riemannian, Alexandrov and Minkowski spaces. Zbl 1260.53121Rataj, Jan; Zajíček, Luděk 3 2012 Hadamard differentiability via Gâteaux differentiability. Zbl 1316.46039Zajíček, Luděk 3 2015 On Stepanov type differentiability theorems. Zbl 1349.46043Malý, J.; Zajíček, L. 3 2015 Nondifferentiable functions, Haar null sets and Wiener measure. Zbl 0981.26004Holický, P.; Zajíček, L. 3 2000 Structure of the set of continuous functions with Luzin’s property (N). Zbl 0968.26008Holický, P.; Ponomarev, S. P.; Zajíček, L.; Zelený, M. 3 1999 On the complexity of some \(\sigma \)-ideals of \(\sigma \)-P-porous sets. Zbl 1099.54029Zajíček, Luděk; Zelený, Miroslav 2 2003 A remark on a theorem of Solecki. Zbl 1121.03058Holický, P.; Zajíček, L.; Zelený, M. 2 2005 A generalization of an Ekeland-Lebourg theorem and the differentiability of distance functions. Zbl 0547.46027Zajíček, L. 2 1984 On cluster sets of arbitrary functions. Zbl 0276.26005Zajicek, L. 2 1974 On Dini and approximate Dini derivates of typical continuous functions. Zbl 1009.26010Preiss, David; Zajíček, Luděk 2 2001 A \(\sigma\)-porous set need not be \(\sigma\)-bilaterally porous. Zbl 0822.26001Nájares, J. R.; Zajíček, L. 2 1994 On Lipschitz and d.c.surfaces of finite codimension in a Banach space. Zbl 1174.46040Zajíček, Luděk 2 2008 The Banach-Zarecki theorem for functions with values in metric spaces. Zbl 1083.26007Duda, Jakub; Zajícek, Luděk 2 2005 Smoothness via directional smoothness and Marchaud’s theorem in Banach spaces. Zbl 1326.46036Johanis, Michal; Zajíček, Luděk 2 2015 On the intersection of the sets of the right and left internal approximate derivatives. Zbl 0272.26004Zajicek, Ludek 2 1973 On sets of non-differentiability of Lipschitz and convex functions. Zbl 1171.46314Zajíček, Luděk 2 2007 Inscribing closed non-\(\sigma\)-lower porous sets into Suslin non-\(\sigma\)-lower porous sets. Zbl 1091.28001Zajíček, Luděk; Zelený, Miroslav 2 2005 On semiconcavity via the second difference. Zbl 1390.26024Zajíček, Luděk 2 2018 On Kantorovich’s result on the symmetry of Dini derivatives. Zbl 1224.26021Koc, M.; Zajíček, L. 2 2010 A criterion of \(\varGamma \)-nullness and differentiability of convex and quasiconvex functions. Zbl 1339.46044Tišer, Jaroslav; Zajíček, Luděk 2 2015 Remarks on Fréchet differentiability of pointwise Lipschitz, cone-monotone and quasiconvex functions. Zbl 1324.46053Zajíček, Luděk 2 2014 Differences of two semiconvex functions on the real line. Zbl 1374.26024Kryštof, Václav; Zajíček, Luděk 2 2016 Differentiability properties of typical continuous functions. Zbl 1014.26514Zajíček, L. 2 2000 On differentiability of convex operators. Zbl 1278.46042Veselý, Libor; Zajíček, Luděk 2 2013 Functions on a convex set which are both \(\omega \)-semiconvex and \(\omega \)-semiconcave. Zbl 1504.26023Kryštof, Václav; Zajíček, Luděk 2 2022 On differentiation of metric projections in finite dimensional Banach spaces. Zbl 0551.41048Zajíček, Luděk 1 1983 On d.c. mappings and differences of convex operators. Zbl 1129.46311Veselý, Libor; Zajíček, Luděk 1 2001 A note on intermediate differentiability of Lipschitz functions. Zbl 1010.46042Zajíček, L. 1 1999 On differentiability properties of Lipschitz functions on a Banach space with a Lipschitz uniformly Gâteaux differentiable bump function. Zbl 0886.46049Zajíček, L. 1 1997 Quotients of continuous convex functions on nonreflexive Banach spaces. Zbl 1135.46005Holický, P.; Kalenda, O. F. K.; Veselý, L.; Zajíček, L. 1 2007 A \(C^1\) function which is nowhere strongly paraconvex and nowhere semiconcave. Zbl 1173.26309Zajíček, Luděk 1 2007 A note on the Darboux property of Fréchet derivatives. Zbl 1130.26007Holický, P.; Weil, C. E.; Zajíček, L. 1 2007 Whitney arcs and 1-critical arcs. Zbl 1152.26009Csörnyei, Marianna; Kališ, Jan; Zajíček, Luděk 1 2008 A note on the symmetric and ordinary derivative. Zbl 0786.26006Zajíček, Luděk 1 1993 An elementary proof of the one-dimensional density theorem. Zbl 0409.28004Zajicek, Ludek 1 1979 Remarks on WDC sets. Zbl 07396212Pokorný, Dušan; Zajíček, Luděk 1 2021 On sets in \(\mathbb{R}^d\) with DC distance function. Zbl 1434.26028Pokorný, Dušan; Zajíček, Luděk 1 2020 A remark on functions continuous on all lines. Zbl 1474.26046Zajíček, Luděk 1 2019 Properties of Hadamard directional derivatives: Denjoy-Young-Saks theorem for functions on Banach spaces. Zbl 1322.46028Zajíček, Luděk 1 2015 Spaces of d.c.mappings on arbitrary intervals. Zbl 1373.46018Veselý, Libor; Zajíček, Luděk 1 2016 On vector-valued curves that allow a \(C^{1,\alpha}\)-parametrization. Zbl 1224.26090Duda, J.; Zajíček, L. 1 2010 Gâteaux and Hadamard differentiability via directional differentiability. Zbl 1311.46044Zajíček, Luděk 1 2014 Strict differentiability via differentiability. Zbl 0646.46037Zajíček, L. 1 1987 An unusual monotonicity theorem with applications. Zbl 0651.26006Malý, J.; Preiss, D.; Zajíček, L. 1 1988 Functions on a convex set which are both \(\omega \)-semiconvex and \(\omega \)-semiconcave. Zbl 1504.26023Kryštof, Václav; Zajíček, Luděk 2 2022 Remarks on WDC sets. Zbl 07396212Pokorný, Dušan; Zajíček, Luděk 1 2021 On sets in \(\mathbb{R}^d\) with DC distance function. Zbl 1434.26028Pokorný, Dušan; Zajíček, Luděk 1 2020 On the structure of WDC sets. Zbl 1429.26022Pokorný, Dušan; Rataj, Jan; Zajíček, Luděk 4 2019 A remark on functions continuous on all lines. Zbl 1474.26046Zajíček, Luděk 1 2019 On semiconcavity via the second difference. Zbl 1390.26024Zajíček, Luděk 2 2018 On the structure of sets with positive reach. Zbl 1375.26026Rataj, Jan; Zajíček, Luděk 15 2017 Differences of two semiconvex functions on the real line. Zbl 1374.26024Kryštof, Václav; Zajíček, Luděk 2 2016 Spaces of d.c.mappings on arbitrary intervals. Zbl 1373.46018Veselý, Libor; Zajíček, Luděk 1 2016 Hadamard differentiability via Gâteaux differentiability. Zbl 1316.46039Zajíček, Luděk 3 2015 On Stepanov type differentiability theorems. Zbl 1349.46043Malý, J.; Zajíček, L. 3 2015 Smoothness via directional smoothness and Marchaud’s theorem in Banach spaces. Zbl 1326.46036Johanis, Michal; Zajíček, Luděk 2 2015 A criterion of \(\varGamma \)-nullness and differentiability of convex and quasiconvex functions. Zbl 1339.46044Tišer, Jaroslav; Zajíček, Luděk 2 2015 Properties of Hadamard directional derivatives: Denjoy-Young-Saks theorem for functions on Banach spaces. Zbl 1322.46028Zajíček, Luděk 1 2015 Remarks on Fréchet differentiability of pointwise Lipschitz, cone-monotone and quasiconvex functions. Zbl 1324.46053Zajíček, Luděk 2 2014 Gâteaux and Hadamard differentiability via directional differentiability. Zbl 1311.46044Zajíček, Luděk 1 2014 Smallness of singular sets of semiconvex functions in separable Banach spaces. Zbl 1269.49016Duda, Jakub; Zajícek, Ludek 4 2013 On differentiability of convex operators. Zbl 1278.46042Veselý, Libor; Zajíček, Luděk 2 2013 A joint generalization of Whitney’s extension theorem and Aversa-Laczkovich-Preiss’ extension theorem. Zbl 1241.26008Koc, Martin; Zajíček, Luděk 9 2012 Generic Fréchet differentiability on Asplund spaces via a.e. strict differentiability on many lines. Zbl 1245.46033Zajícek, L. 8 2012 Critical values and level sets of distance functions in Riemannian, Alexandrov and Minkowski spaces. Zbl 1260.53121Rataj, Jan; Zajíček, Luděk 3 2012 Curves in Banach spaces which allow a \(C^{2}\)-parameterization. Zbl 1225.26059Duda, Jakub; Zajíček, Luděk 3 2011 On extensions of d. c. functions and convex functions. Zbl 1189.26024Veselý, Libor; Zajícěk, Luděk 4 2010 On Kantorovich’s result on the symmetry of Dini derivatives. Zbl 1224.26021Koc, M.; Zajíček, L. 2 2010 On vector-valued curves that allow a \(C^{1,\alpha}\)-parametrization. Zbl 1224.26090Duda, J.; Zajíček, L. 1 2010 On compositions of d.c. functions and mappings. Zbl 1182.46011Veselý, Libor; Zajícek, Luděk 5 2009 Semiconvex functions: representations as suprema of smooth functions and extensions. Zbl 1168.49015Duda, Jakub; Zajícek, L. 3 2009 Differentiability of approximately convex, semiconcave and strongly paraconvex functions. Zbl 1140.46021Zajícek, L. 4 2008 On vector functions of bounded convexity. Zbl 1199.47242Veselý, Libor; Zajíček, Luděk 3 2008 On Lipschitz and d.c.surfaces of finite codimension in a Banach space. Zbl 1174.46040Zajíček, Luděk 2 2008 Whitney arcs and 1-critical arcs. Zbl 1152.26009Csörnyei, Marianna; Kališ, Jan; Zajíček, Luděk 1 2008 Differentiability via curves in Banach spaces homeomorphisms. Zbl 1148.26008Duda, Jakub; Zajíček, Luděk 5 2007 On the directions of segments and \(r\)-dimensional balls on a convex surface. Zbl 1127.52005Pavlica, David; Zajíček, Luděk 4 2007 On sets of non-differentiability of Lipschitz and convex functions. Zbl 1171.46314Zajíček, Luděk 2 2007 Quotients of continuous convex functions on nonreflexive Banach spaces. Zbl 1135.46005Holický, P.; Kalenda, O. F. K.; Veselý, L.; Zajíček, L. 1 2007 A \(C^1\) function which is nowhere strongly paraconvex and nowhere semiconcave. Zbl 1173.26309Zajíček, Luděk 1 2007 A note on the Darboux property of Fréchet derivatives. Zbl 1130.26007Holický, P.; Weil, C. E.; Zajíček, L. 1 2007 On differentiability properties of typical continuous functions and Haar null sets. Zbl 1089.26003Zajícek, L. 6 2006 Morse-Sard theorem for d.c. functions and mappings on \(\mathbb R^2\). Zbl 1112.26017Pavlica, D.; Zajíček, L. 5 2006 On connections between delta-convex mappings and convex operators. Zbl 1115.47048Veselý, Libor; Zajícek, Ludek 4 2006 On \(\sigma\)-porous sets in abstract spaces. Zbl 1098.28003Zajíček, L. 71 2005 Extensions of real and vector functions of one variable which preserve differentiability. Zbl 1112.26007Nekvinda, A.; Zajíček, L. 4 2005 Inscribing compact non-\(\sigma\)-porous sets into analytic non-\(\sigma\)-porous sets. Zbl 1086.54025Zelený, Miroslav; Zajíček, Luděk 4 2005 A remark on a theorem of Solecki. Zbl 1121.03058Holický, P.; Zajíček, L.; Zelený, M. 2 2005 The Banach-Zarecki theorem for functions with values in metric spaces. Zbl 1083.26007Duda, Jakub; Zajícek, Luděk 2 2005 Inscribing closed non-\(\sigma\)-lower porous sets into Suslin non-\(\sigma\)-lower porous sets. Zbl 1091.28001Zajíček, Luděk; Zelený, Miroslav 2 2005 Porosity, \(\sigma\)-porosity and measures. Zbl 1026.28001Mera, M. E.; Morán, M.; Preiss, D.; Zajíček, L. 18 2003 On d.c. functions and mappings. Zbl 1072.46025Veselý, Libor; Duda, Jakub; Zajíček, Luděk 9 2003 On the complexity of some \(\sigma \)-ideals of \(\sigma \)-P-porous sets. Zbl 1099.54029Zajíček, Luděk; Zelený, Miroslav 2 2003 Directional derivatives of Lipschitz functions. Zbl 1022.46026Preiss, D.; Zajíček, L. 20 2001 On Dini and approximate Dini derivates of typical continuous functions. Zbl 1009.26010Preiss, David; Zajíček, Luděk 2 2001 On d.c. mappings and differences of convex operators. Zbl 1129.46311Veselý, Libor; Zajíček, Luděk 1 2001 Nondifferentiable functions, Haar null sets and Wiener measure. Zbl 0981.26004Holický, P.; Zajíček, L. 3 2000 Differentiability properties of typical continuous functions. Zbl 1014.26514Zajíček, L. 2 2000 Sigma-porous sets in products of metric spaces and sigma-directionally porous sets in Banach spaces. Zbl 0942.28002Preiss, D.; Zajíček, L. 3 1999 Structure of the set of continuous functions with Luzin’s property (N). Zbl 0968.26008Holický, P.; Ponomarev, S. P.; Zajíček, L.; Zelený, M. 3 1999 A note on intermediate differentiability of Lipschitz functions. Zbl 1010.46042Zajíček, L. 1 1999 Second order differentiability and Lipschitz smooth points of convex functionals. Zbl 0956.58002Matoušková, Eva; Zajíček, Luděk 4 1998 Convex functions with non-Borel set of Gâteaux differentiability points. Zbl 0970.46026Holický, P.; Šmídek, M.; Zajíček, L. 4 1998 Small non-\(\sigma\)-porous sets in topologically complete metric spaces. Zbl 0909.28001Zajíček, L. 3 1998 A note on the gradient problem. Zbl 0879.26041Holický, P.; Malý, J.; Zajíček, L.; Weil, C. 3 1997 On differentiability properties of Lipschitz functions on a Banach space with a Lipschitz uniformly Gâteaux differentiable bump function. Zbl 0886.46049Zajíček, L. 1 1997 Products of non-\(\sigma\)-porous sets and Foran systems. Zbl 0877.54023Zajíček, L. 3 1996 A \(\sigma\)-porous set need not be \(\sigma\)-bilaterally porous. Zbl 0822.26001Nájares, J. R.; Zajíček, L. 2 1994 A note on the symmetric and ordinary derivative. Zbl 0786.26006Zajíček, Luděk 1 1993 Frechet differentiability, strict differentiability and subdifferentiability. Zbl 0760.46038Zajíček, Luděk 6 1991 Smallness of sets of nondifferentiability of convex functions in non- separable Banach spaces. Zbl 0768.58005Zajíček, Luděk 5 1991 Approximate differentiation: Jarník points. Zbl 0814.26005Malý, Jan; Zajíček, Luděk 4 1991 Delta-convex mappings between Banach spaces and applications. Zbl 0685.46027Veselý, L.; Zajíček, L. 30 1989 On \(\sigma\)-porous sets and Borel sets. Zbl 0692.54024Zajíček, Luděk 4 1989 Porosity and \(\sigma\)-porosity. Zbl 0666.26003Zajíček, L. 71 1988 A simple proof of the Rademacher theorem. Zbl 0669.26005Nekvinda, Aleš; Zajíček, Luděk 10 1988 An unusual monotonicity theorem with applications. Zbl 0651.26006Malý, J.; Preiss, D.; Zajíček, L. 1 1988 Porosity, \({\mathcal I}\)-density topology and abstract density topologies. Zbl 0641.26004Zajíček, Luděk 5 1987 Strict differentiability via differentiability. Zbl 0646.46037Zajíček, L. 1 1987 Fine topology methods in real analysis and potential theory. Zbl 0607.31001Lukeš, Jaroslav; Malý, Jan; Zajíček, Luděk 66 1986 On the Fréchet differentiability of distance functions. Zbl 0581.41028Zajíček, L. 33 1984 Fréchet differentiation of convex functions in a Banach space with a separable dual. Zbl 0521.46034Preiss, D.; Zajíček, L. 6 1984 Stronger estimates of smallness of sets of Fréchet nondifferentiabiliy of convex functions. Zbl 0547.46026Preiss, D.; Zajíček, L. 5 1984 A generalization of an Ekeland-Lebourg theorem and the differentiability of distance functions. Zbl 0547.46027Zajíček, L. 2 1984 Differentiability of the distance function and points of multi-valuedness of the metric projection in Banach space. Zbl 0527.41028Zajicek, Ludek 13 1983 On differentiation of metric projections in finite dimensional Banach spaces. Zbl 0551.41048Zajíček, Luděk 1 1983 On residuality of the set of rotund norms on a Banach space. Zbl 0465.46003Fabian, M.; Zajicek, L.; Zizler, V. 6 1982 On the differentiation of convex functions in finite and infinite dimensional spaces. Zbl 0429.46007Zajicek, Ludek 18 1979 An elementary proof of the one-dimensional density theorem. Zbl 0409.28004Zajicek, Ludek 1 1979 On the points of multiplicity of monotone operators. Zbl 0404.47025Zajicek, Ludek 8 1978 On the points of multivaluedness of metric projections in separable Banach spaces. Zbl 0382.46007Zajicek, Ludek 6 1978 Sets of \(\sigma\)-porosity and sets of \(\sigma\)-porosity \((q)\). Zbl 0341.30026Zajicek, Ludek 27 1976 On cluster sets of arbitrary functions. Zbl 0276.26005Zajicek, L. 2 1974 On the intersection of the sets of the right and left internal approximate derivatives. Zbl 0272.26004Zajicek, Ludek 2 1973 all cited Publications top 5 cited Publications all top 5 Cited by 480 Authors 25 Zajíček, Luděk 12 Llibre, Jaume 10 Ostaszewski, Adam J. 10 Strobin, Filip 10 Turowska, Małgorzata 9 Duda, Jakub 9 Kowalczyk, Stanisław 8 Bingham, Nicholas Hugh 8 Dymond, Michael 8 Głąb, Szymon 8 Ivanova, Gertruda 8 Spurný, Jiří 8 Zhang, Xiang 7 Akbarbaglu, Ibrahim 7 Cúth, Marek 7 Kalenda, Ondřej F. K. 7 Preiss, David 6 Ciesielski, Krzysztof Chris 6 Maghsoudi, Saeid 6 Speight, Gareth 5 Bachir, Mohammed 5 Balcerzak, Marek 5 Evans, Michael Jon 5 Filipczak, Małgorzata 5 Humke, Paul D. 5 Malý, Jan 5 Nowakowski, Piotr 5 Olbryś, Andrzej 5 Pokorný, Dušan 5 Santilli, Mario 5 Seoane-Sepúlveda, Juan Benigno 5 Zelený, Miroslav 4 Bargetz, Christian 4 Björn, Anders 4 Björn, Jana 4 Borwein, Jonathan Michael 4 Delladio, Silvano 4 Filipczak, Tomasz 4 Hejduk, Jacek 4 Karasińska, Aleksandra 4 Moreno, José-Pedro 4 Netuka, Ivan 4 Rataj, Jan 4 Reich, Simeon 4 Rmoutil, Martin 4 Suomala, Ville 4 Valls Anglés, Cláudia 4 Wagner-Bojakowska, Elżbieta 3 Azagra, Daniel 3 Bate, David 3 Buczolich, Zoltán 3 Burke, Maxim R. 3 Cannarsa, Piermarco 3 Cheng, Wei 3 da Silva, João Vítor 3 Fabian, Marián J. 3 Giné, Jaume 3 Hajłasz, Piotr 3 Holá, Ľubica 3 Holý, Dušan 3 Horbaczewska, Grażyna 3 Järvenpää, Esa 3 Koc, Martin 3 Kolář, Jan 3 Latvala, Visa 3 Li, Chong 3 Lytchak, Alexander 3 Macheras, Nikolaos Demetrios 3 Maleva, Olga 3 Pérez-Aros, Pedro 3 Pinamonti, Andrea 3 Šalát, Tibor 3 Strauss, Werner 3 Veselý, Libor 3 Wang, Shawn Xianfu 2 Albano, Paolo 2 Barnsley, Michael Fielding 2 Bednarczuk, Ewa M. 2 Belna, Charles L. 2 Bongiorno, Donatella 2 Bukovská, Zuzana 2 Cibulka, Radek 2 Correa, Rafael Augusto Couceiro 2 Darji, Udayan B. 2 De Bernardi, Carlo Alberto 2 Delfour, Michel Claude 2 Dello Schiavo, Lorenzo 2 Domínguez Benavides, T. 2 Domnik, Irena 2 Doré, Michael 2 Dovgoshey, Oleksiy Alfredovich 2 Elekes, Márton 2 Ferrera, Juan 2 Fu, Joseph Howland Guthrie 2 Gandini, Pier Mario 2 Ger, Roman 2 Ginchev, Ivan G. 2 Gomez Gil, Javier 2 Gorokhovik, Valentin Vikent’evich 2 Hájek, Petr ...and 380 more Authors all top 5 Cited in 156 Serials 38 Journal of Mathematical Analysis and Applications 27 Topology and its Applications 23 Proceedings of the American Mathematical Society 18 Czechoslovak Mathematical Journal 12 Israel Journal of Mathematics 11 Journal of Functional Analysis 11 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 11 Journal of Convex Analysis 10 Mathematica Slovaca 9 Transactions of the American Mathematical Society 7 Advances in Mathematics 7 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 6 Bulletin of the Australian Mathematical Society 6 Journal of Differential Equations 6 Journal of Optimization Theory and Applications 6 Rendiconti del Circolo Matemàtico di Palermo. Serie II 6 Acta Mathematica Hungarica 5 Real Analysis Exchange 5 Results in Mathematics 5 Aequationes Mathematicae 5 Central European Journal of Mathematics 4 Mathematical Proceedings of the Cambridge Philosophical Society 4 Mathematische Annalen 4 Indagationes Mathematicae. New Series 4 Potential Analysis 4 Tatra Mountains Mathematical Publications 4 Qualitative Theory of Dynamical Systems 3 Archive for Rational Mechanics and Analysis 3 Studia Mathematica 3 Annali di Matematica Pura ed Applicata. Serie Quarta 3 Archiv der Mathematik 3 Commentationes Mathematicae Universitatis Carolinae 3 Illinois Journal of Mathematics 3 Mathematische Zeitschrift 3 Quaestiones Mathematicae 3 Optimization 3 Journal of Theoretical Probability 3 Journal of Global Optimization 3 Mathematical Programming. Series A. Series B 3 Georgian Mathematical Journal 3 Annales Mathematicae Silesianae 2 Communications in Algebra 2 Journal d’Analyse Mathématique 2 Journal of Mathematical Physics 2 Mathematical Notes 2 ZAMP. Zeitschrift für angewandte Mathematik und Physik 2 Annales de l’Institut Fourier 2 Colloquium Mathematicum 2 Demonstratio Mathematica 2 Journal of Approximation Theory 2 The Journal of Symbolic Logic 2 Manuscripta Mathematica 2 Mathematika 2 Monatshefte für Mathematik 2 SIAM Journal on Control and Optimization 2 Ergodic Theory and Dynamical Systems 2 Journal de Mathématiques Pures et Appliquées. Neuvième Série 2 Stochastic Processes and their Applications 2 Topological Methods in Nonlinear Analysis 2 Calculus of Variations and Partial Differential Equations 2 Journal of Mathematical Sciences (New York) 2 Filomat 2 Discrete and Continuous Dynamical Systems 2 Set-Valued and Variational Analysis 2 Bulletin of Mathematical Sciences 2 European Journal of Mathematics 1 Advances in Applied Probability 1 Analysis Mathematica 1 Archive for History of Exact Sciences 1 Computers & Mathematics with Applications 1 Communications in Mathematical Physics 1 International Journal of Control 1 Lithuanian Mathematical Journal 1 Rocky Mountain Journal of Mathematics 1 Chaos, Solitons and Fractals 1 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg 1 Anais da Academia Brasileira de Ciências 1 The Annals of Probability 1 Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie IV 1 Applied Mathematics and Optimization 1 Bulletin of the London Mathematical Society 1 Bulletin de la Société Mathématique de France 1 Geometriae Dedicata 1 Glasgow Mathematical Journal 1 Inventiones Mathematicae 1 Journal of the London Mathematical Society. Second Series 1 Journal of Mathematical Economics 1 Journal of Number Theory 1 Journal of Pure and Applied Algebra 1 Journal für die Reine und Angewandte Mathematik 1 Journal of Soviet Mathematics 1 Mathematische Nachrichten 1 Memoirs of the American Mathematical Society 1 Notre Dame Journal of Formal Logic 1 Numerical Functional Analysis and Optimization 1 Siberian Mathematical Journal 1 Annals of Global Analysis and Geometry 1 Annales de l’Institut Henri Poincaré. Analyse Non Linéaire 1 Computer Aided Geometric Design 1 Journal of the American Mathematical Society ...and 56 more Serials all top 5 Cited in 46 Fields 137 Real functions (26-XX) 122 Functional analysis (46-XX) 110 General topology (54-XX) 93 Measure and integration (28-XX) 63 Calculus of variations and optimal control; optimization (49-XX) 30 Differential geometry (53-XX) 28 Ordinary differential equations (34-XX) 28 Operator theory (47-XX) 26 Convex and discrete geometry (52-XX) 25 Partial differential equations (35-XX) 24 Global analysis, analysis on manifolds (58-XX) 21 Mathematical logic and foundations (03-XX) 21 Dynamical systems and ergodic theory (37-XX) 18 Operations research, mathematical programming (90-XX) 17 Probability theory and stochastic processes (60-XX) 15 Difference and functional equations (39-XX) 15 Approximations and expansions (41-XX) 14 Potential theory (31-XX) 12 Abstract harmonic analysis (43-XX) 11 Functions of a complex variable (30-XX) 7 Sequences, series, summability (40-XX) 7 Numerical analysis (65-XX) 4 Number theory (11-XX) 4 Group theory and generalizations (20-XX) 4 Several complex variables and analytic spaces (32-XX) 4 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 3 History and biography (01-XX) 3 Topological groups, Lie groups (22-XX) 3 Geometry (51-XX) 2 Combinatorics (05-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Harmonic analysis on Euclidean spaces (42-XX) 2 Integral equations (45-XX) 2 Algebraic topology (55-XX) 2 Manifolds and cell complexes (57-XX) 1 General and overarching topics; collections (00-XX) 1 Order, lattices, ordered algebraic structures (06-XX) 1 Commutative algebra (13-XX) 1 Algebraic geometry (14-XX) 1 Nonassociative rings and algebras (17-XX) 1 Category theory; homological algebra (18-XX) 1 Integral transforms, operational calculus (44-XX) 1 Mechanics of particles and systems (70-XX) 1 Mechanics of deformable solids (74-XX) 1 Biology and other natural sciences (92-XX) 1 Systems theory; control (93-XX) Citations by Year