Corrected Fourier series and its application to function approximation.
Correction to "On an integral of Marcinkiewicz" ( Studia Math. 57 (1976), pp. 279-284)
Correction to the paper "On convergence of Fourier series of functions of generalized bounded variation" (Studia Math., 44 (1972), pp. 107-117)
Corrections to “The maximal function on variable spaces".
Corrections to the Papers "Power Bounded Matrices of Fourier-Stieltjes Transforms I, II".
Corrigenda: On the product theory of singular integrals.
We wish to acknowledge and correct an error in a proof in our paper On the product theory of singular integrals, which appeared in Revista Matemática Iberoamericana, volume 20, number 2, 2004, pages 531-561.
Corrigenda to: "Generalizations of theorems of Fejér and Zygmund on convergence and boundedness of conjugate series" (Studia Math. 57 (1976), 241-249)
Proposition 4.1(i) of [1] is incorrect, i.e. the sequence of Cesàro-sections of a sequence x in a translation invariant BK-space is not necessarily bounded. Theorem 4.2(ii) of [1] and the proof of Proposition 4.3 of [1] are corrected. All other statements of [1], including Proposition 4.3 itself, are correct.
Corrigendum of Mean Quadratic Variations and Fourier Asymptotics of Self-similar Measures.
Corrigendum: On summability of Fourier series.
Corrigendum to 'A Note on Wavelets and S-asymptotics'
Corrigendum to "Carleson measures associated with families of multilinear operators" (Studia Math. 211 (2012), 71-94)
We provide a modification for part of the proof of Theorem 1.2 of our article, pages 85-89, under the multivariable T(1) cancellation condition.
Corrigendum to Maximal regularity and Hardy spaces.
Corrigendum to the paper "Pointwise convergence for expansions in surface harmonics of arbitrary dimension".
Costruzione di un sistema di polinomi ortonormali a partire da due suoi polinomi consecutivi
The following result is proved: to give two consecutive polynomials , of an orthonormal system is equivalent to assign the first moments of the Lebesgue-Stieltjes measure associated with the system.
Counterexamples for classical operators on Lorentz-Zygmund spaces
Counting peaks and valleys in a partition of a set.
Coup d'oeil sur la théorie des séries trigonométriques les plus usuelles, et sur une raison naturelle de leur convergence, applicable aux autres développements de fonctions arbitraires employés en Physique mathématique
Courbes corde-arc et espaces de Hardy généralisés
Étant donné une courbe de Jordan rectifiable du plan complexe admettant le paramétrage par la longueur d’arc , on étudie les relations entre la géométrie de et la position dans des deux espaces de Hardy associés à . Plus précisément, on montre que si est la somme presque-orthogonale des espaces de Hardy, la courbe satisfait à une condition de type corde-arc, c’est-à-dire que pour tout et tout de , . Ce résultat est une sorte de réciproque à la généralisation du théorème de Calderón...
Criteria for absolute and strong convergence of Fourier series
Criteria of general weak type inequalities for integral transforms with positive kernels.