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Author: Zajíček, Luděk

• Zajíček, Luděk: Fréchet differentiability via partial Fréchet differentiability. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 64 (2023), issue 2, pp. 185-207
• Pokorný, Dušan; Zajíček, Luděk: A characterization of sets in ${\mathbb R}^2$ with DC distance function. (English). Czechoslovak Mathematical Journal, vol. 72 (2022), issue 1, pp. 1-38
• Zajíček, Luděk: On sets of discontinuities of functions continuous on all lines. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 63 (2022), issue 4, pp. 487-505
• Pokorný, Dušan; Zajíček, Luděk: Remarks on WDC sets. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 62 (2021), issue 1, pp. 81-94
• Zajíček, Luděk: A remark on functions continuous on all lines. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 60 (2019), issue 2, pp. 211-218
• Kryštof, Václav; Zajíček, Luděk: Differences of two semiconvex functions on the real line. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 57 (2016), issue 1, pp. 21-37
• Zajíček, Luděk: Remarks on Fréchet differentiability of pointwise Lipschitz, cone-monotone and quasiconvex functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 55 (2014), issue 2, pp. 203-213
• Duda, Jakub; Zajíček, Luděk: Curves in Banach spaces which allow a $C^{1,\rm BV}$ parametrization or a parametrization with finite convexity. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 4, pp. 1057-1085
• Zajíček, Luděk: Singular points of order $k$ of Clarke regular and arbitrary functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 53 (2012), issue 1, pp. 51-63
• Rataj, Jan; Zajíček, Luděk: Properties of distance functions on convex surfaces and applications. (English). Czechoslovak Mathematical Journal, vol. 61 (2011), issue 1, pp. 247-269
• Zajíček, Luděk: A note on propagation of singularities of semiconcave functions of two variables. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 51 (2010), issue 3, pp. 453-458
• Koc, Martin; Zajíček, Luděk: On Kantorovich's result on the symmetry of Dini derivatives. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 51 (2010), issue 4, pp. 619-629
• Zajíček, Luděk: On Lipschitz and d.c. surfaces of finite codimension in a Banach space. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 3, pp. 849-864
• Veselý, Libor; Zajíček, Luděk: On vector functions of bounded convexity. (English). Mathematica Bohemica, vol. 133 (2008), issue 3, pp. 321-335
• Zajíček, Luděk: On sets of non-differentiability of Lipschitz and convex functions. (English). Mathematica Bohemica, vol. 132 (2007), issue 1, pp. 75-85
• Zajíček, Luděk; Zelený, Miroslav: On the complexity of some $\sigma$-ideals of $\sigma$-P-porous sets. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 44 (2003), issue 3, pp. 531-554
• Veselý, Libor; Zajíček, Luděk: On D.C. mappings and differences of convex operators. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 42 (2001), issue 2, pp. 89-97
• Zajíček, Luděk: Obecná teorie derivování funkcí a měr na katedře matematické analýzy MFF UK. (Czech) [General theory of differentiation of functions and measures studied at the Charles University]. Pokroky matematiky, fyziky a astronomie, vol. 45 (2000), issue 3, pp. 188-207
• Holický, Petr; Zajíček, Luděk: Nondifferentiable functions, Haar null sets and Wiener measure. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 41 (2000), issue 2, pp. 7-11
• Zajíček, Luděk: A note on intermediate differentiability of Lipschitz functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 40 (1999), issue 4, pp. 795-799
• Matoušková, Eva; Zajíček, Luděk: Second order differentiability and Lipschitz smooth points of convex functionals. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 4, pp. 617-640
• Zajíček, Luděk: On differentiability properties of Lipschitz functions on a Banach space with a Lipschitz uniformly Gâteaux differentiable bump function. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 38 (1997), issue 2, pp. 329-336
• Zajíček, Luděk On results of Jan Mařík in the theory of derivatives (English).
• Zajíček, Luděk: On results of Jan Mařík in the theory of derivatives. (English). Mathematica Bohemica, vol. 121 (1996), issue 4, pp. 385-395
• Bečvář, Jindřich; Zajíček, Luděk: Weyrův spor s Pexiderem. (Czech) [Weyr's controversy with Pexider]. In: Bečvář, Jindřich (editor): Eduard Weyr (1852-1903). (Czech). Praha: Prometheus, 1995. 80-7196-024-1, pp. 143-162
• Zajíček, Luděk: An elementary proof of the one-dimensional Rademacher theorem. (English). Mathematica Bohemica, vol. 117 (1992), issue 2, pp. 133-136
• Zajíček, Luděk: Fréchet differentiability, strict differentiability and subdifferentiability. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 3, pp. 471-489
• Zajíček, Luděk: Smallness of sets of nondifferentiability of convex functions in non-separable Banach spaces. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 2, pp. 288-296
• Zajíček, Luděk: Porosity, derived numbers and knot points of typical continuous functions. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 1, pp. 45-52
• Zajíček, Luděk: ISTAM 87 - Bělehrad. (Czech) [ISTAM 87 - Beograd]. Pokroky matematiky, fyziky a astronomie, vol. 33 (1988), issue 2, pp. 99-101
• Nekvinda, Aleš; Zajíček, Luděk: A simple proof of the Rademacher theorem. (English). Časopis pro pěstování matematiky, vol. 113 (1988), issue 4, pp. 337-341
• Zajíček, Luděk: Differentiability of the distance function and points of multi-valuedness of the metric projection in Banach space. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 2, pp. 292-308
• Zajíček, Luděk: A note on partial derivatives of convex functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 24 (1983), issue 1, pp. 89-91
• Zajíček, Luděk: On differentiation of metric projections in finite dimensional Banach spaces. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 3, pp. 325-336
• Preiss, David; Zajíček, Luděk: On the symmetry of approximate Dini derivates of arbitrary functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 23 (1982), issue 4, pp. 691-697
• Zajíček, Luděk: A note on norm-attaining functionals. (English). Časopis pro pěstování matematiky, vol. 106 (1981), issue 2, pp. 168-169
• Zajíček, Luděk: On approximate Dini derivates and one-sided approximate derivatives of arbitrary functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 3, pp. 549-560
• Zajíček, Luděk: On the symmetry of Dini derivates of arbitrary functions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 1, pp. 195-209
• Zajíček, Luděk: On the differentiation of convex functions in finite and infinite dimensional spaces. (English). Czechoslovak Mathematical Journal, vol. 29 (1979), issue 3, pp. 340-348
• Zajíček, Luděk: On the points of multiplicity of monotone operators. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 1, pp. 179-189
• Zajíček, Luděk: On the points of multivaluedness of metric projections in separable Banach spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 3, pp. 513-523
• Lukeš, Jaroslav; Zajíček, Luděk: The insertion of $G_\delta$ sets and fine topologies. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 18 (1977), issue 1, pp. 101-104
• Lukeš, Jaroslav; Zajíček, Luděk: When finely continuous functions are of the first class of Baire. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 18 (1977), issue 4, pp. 647-657
• Lukeš, Jaroslav; Zajíček, Luděk: Fine topologies as examples of non-Blumberg Baire spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 4, pp. 683-688
• Zajíček, Luděk: Sets of $\sigma$-porosity and sets of $\sigma $-porosity $(q)$. (English). Časopis pro pěstování matematiky, vol. 101 (1976), issue 4, pp. 350-359
• Zajíček, Luděk: O třináctém Hilbertově problému. (Czech) [The thirteenth Hilbert problem]. Pokroky matematiky, fyziky a astronomie, vol. 19 (1974), issue 1, pp. 22-28
• Netuka, Ivan; Zajíček, Luděk: Functions continuous in the fine topology for the heat equation. (English). Časopis pro pěstování matematiky, vol. 99 (1974), issue 3, pp. 300-306
• Zajíček, Luděk: On the intersection of the sets of the right and left internal approximate derivatives. (English). Czechoslovak Mathematical Journal, vol. 23 (1973), issue 4, pp. 629-634
• Zajíček, Luděk: Cluster sets of arbitrary functions in Euclidean spaces (Preliminary communication). (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 1, pp. 197-201
• Zajíček, Luděk: O Baireových třídách. (Czech) [On Baire classes]. Časopis pro pěstování matematiky, vol. 95 (1970), issue 3, pp. 240-241
• Zajíček, Luděk: Poznámky k teorii integrálu. (Czech) [A note on the theory of the integral]. Časopis pro pěstování matematiky, vol. 95 (1970), issue 3, pp. 242-247