Olivier’s theorem: ideal convergence, algebrability and Borel classification Artur BartoszewiczSzymon Gła̧bAgnieszka Widz Original Paper Open access 24 September 2021 Article: 200
On linear continuous operators between distinguished spaces \(C_p(X)\) Jerzy Ka̧kolArkady Leiderman Original Paper 23 September 2021 Article: 199
Monotonicity properties and solvability of dominated best approximation problem in Orlicz spaces equipped with s-norms Yunan CuiMarek Wisła Original Paper Open access 21 September 2021 Article: 198
An application of Lyapunov–Razumikhin method to behaviors of Volterra integro-differential equations Juan J. NietoOsman Tunç Original Paper 21 September 2021 Article: 197
Correction to: Generalized q-starlike harmonic functions Omendra MishraJanusz Sokół Correction 20 September 2021 Article: 196
A further look at a generalization of Waring’s formula Mircea Merca Original Paper 20 September 2021 Article: 195
The structure of linear zero product and commutativity preservers of \(C^*\)-algebras Jung-Hui LiuLei LiNgai-Ching Wong Original Paper 17 September 2021 Article: 194
Remarks on the approximate fixed point sequence of \((\alpha ,\beta )\)-maps Nguyen Van DungStojan Radenovic Original Paper 17 September 2021 Article: 193
A heat flow for a weighted Kazdan-Warner equation\(^\star \) Yamin Wang Original Paper 17 September 2021 Article: 192
On Sobolev bilinear forms and polynomial solutions of second-order differential equations J. C. García-ArdilaM. E. Marriaga Original Paper Open access 17 September 2021 Article: 191
Pietsch’s variants of s-numbers for multilinear operators D. L. FernandezM. MastyłoE. B. Silva Original Paper Open access 14 September 2021 Article: 189
EP-quasinilpotent decomposition and its generalizations Dijana MosićGregor DolinarJanko Marovt Original Paper 13 September 2021 Article: 188
On the inequalities of Turán, Bernstein and Erdős–Lax in quaternionic setting Lucian CoroianuSorin G. Gal Original Paper 13 September 2021 Article: 187
On the spherical maximal function on finite graphs Xiao ZhangFeng Liu Original Paper 13 September 2021 Article: 186
A quantitative approach to disjointly non-singular operators Manuel GonzálezAntonio Martinón Original Paper Open access 12 September 2021 Article: 185
Radius of starlikeness of certain analytic functions S. MadhumithaV. Ravichandran Original Paper 11 September 2021 Article: 184
Suitable sets for paratopological groups Fucai LinAlex RavskyTingting Shi Original Paper 09 September 2021 Article: 183
Corrigendum to “A note on generalized companion pencils” Fernando De TeránCarla Hernando Original Paper 04 September 2021 Article: 182
Surjectivity of the asymptotic Borel map in Carleman–Roumieu ultraholomorphic classes defined by regular sequences Javier Jiménez-GarridoJavier SanzGerhard Schindl Original Paper Open access 04 September 2021 Article: 181
On a Spitzer-type law of large numbers for partial sums of \({\mathbf {m}}\)-negatively associated random variables Fakhreddine Boukhari Original Paper 02 September 2021 Article: 180
On spectral estimations of the generalized forward difference operator S. DuttaP. BaliarsinghN. Tripathy Original Paper 30 August 2021 Article: 179
Structure theory of p.p. rings and their generalizations Abolfazl Tarizadeh Original Paper 27 August 2021 Article: 178
Applications of matrix domains of triangles in the characterization of summability factors Ivana DjolovićEberhard Malkowsky Original Paper 25 August 2021 Article: 177
Generalized q-starlike harmonic functions Omendra MishraJanusz Sokół Original Paper 24 August 2021 Article: 176
Sharp power mean bounds for the lemniscate type means Tie-Hong ZhaoZhong-Hua ShenYu-Ming Chu Original Paper 24 August 2021 Article: 175
An accelerated extragradient algorithm for bilevel pseudomonotone variational inequality problems with application to optimal control problems Bing TanSongxiao LiXiaolong Qin Original Paper 23 August 2021 Article: 174
On the pillars of Functional Analysis M. Victoria Velasco Original Paper Open access 21 August 2021 Article: 173
D(n)-quintuples with square elements Andrej DujellaMatija KazalickiVinko Petričević Original Paper 20 August 2021 Article: 172
A framework of linear canonical Hankel transform pairs in distribution spaces and their applications H. M. SrivastavaManish KumarTusharakanta Pradhan Original Paper 19 August 2021 Article: 171
Proofs of Silva–Sellers’ conjectures on a mock theta function Olivia X. M. Yao Original Paper 16 August 2021 Article: 170
Elliptic curves with torsion groups \({ \mathbb {Z}}/ 8 {\mathbb {Z} } \) and \({ \mathbb {Z}}/ 2 {\mathbb {Z}} \times {\mathbb {Z}}/ 6 {\mathbb {Z}}\) Andrej DujellaMatija KazalickiJuan Carlos Peral Original Paper 12 August 2021 Article: 169
On positive answer to El-Fassi’s question related to hyperstability of the general radical quintic functional equation in quasi-\(\beta \)-Banach spaces Nguyen Van DungWutiphol Sintunavarat Original Paper 10 August 2021 Article: 168
Construction and computation of unified Stirling-type numbers emerging from p-adic integrals and symmetric polynomials Irem KucukogluYilmaz Simsek Original Paper 10 August 2021 Article: 167
Shrinking projection algorithm for solving a finite family of quasi-variational inclusion problems in Hadamard manifold Shih-sen ChangJ. C. YaoJ. H. Zhu Original Paper 07 August 2021 Article: 166
Fréchet-Kolmogorov compactness of Prabhakar integral operator Hossein FazliHongGuang SunJuan J. Nieto Original Paper 06 August 2021 Article: 165
On the behaviors of solutions of systems of non-linear differential equations with multiple constant delays Osman Tunç Original Paper 29 July 2021 Article: 164
Para-Sasakian geometry on Hom-Lie Groups Esmaeil PeyghanLeila NourmohammadifarIon Mihai Original Paper 29 July 2021 Article: 163
Maximal lineability of the class of Darboux not connectivity maps on \({\mathbb {R}}\) Krzysztof Chris Ciesielski Original Paper 24 July 2021 Article: 162
p-Groups of automorphisms of compact non-orientable Riemann surfaces E. BujalanceF. J. CirreJ. M. Gamboa Original Paper Open access 23 July 2021 Article: 161
Solvability for two dimensional functional integral equations via Petryshyn’s fixed point theorem Amar DeepDeepak DhimanSyed Abbas Original Paper 21 July 2021 Article: 160
On the norm-preservation of squares in real algebra representation F. AlbiacO. BlascoE. Briem Original Paper Open access 21 July 2021 Article: 159
A Bayesian solution to the Behrens–Fisher problem Fco. Javier GirónCarmen del Castillo Original Paper Open access 19 July 2021 Article: 158
Convolutors on \({\mathcal S}_{\omega }({\mathbb R}^N)\) Angela A. AlbaneseClaudio Mele Original Paper Open access 15 July 2021 Article: 157
A generic approach to measuring the strength of completeness/compactness of various types of spaces and ordered structures Hanna ĆmielFranz-Viktor KuhlmannKatarzyna Kuhlmann Original Paper 04 July 2021 Article: 156