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A note on isoperimetric inequalities of Gromov hyperbolic manifolds and graphs Álvaro Martínez-PérezJosé M. Rodríguez Original Paper Open access 26 June 2021 Article: 154
Further refinements of Alzer–Fonseca–Kovačec’s inequalities and applications Mohamed Amine IghachaneMohamed AkkouchiEl Hassan Benabdi Original Paper 26 June 2021 Article: 152
On two supercongruences for sums of Apéry-like numbers Ji-Cai Liu Original Paper 22 June 2021 Article: 151
An optimized Chen first inequality for special slant submanifolds in Lorentz-Sasakian space forms O. PostavaruI. Mihai Original Paper 22 June 2021 Article: 150
On two-generator Fibonacci numerical semigroups with a prescribed genus Matheus BernardiniDiego MarquesPavel Trojovský Original Paper 19 June 2021 Article: 149
From projectors to 1MP and MP1 generalized inverses and their induced partial orders M. V. HernándezM. B. LattanziN. Thome Original Paper 19 June 2021 Article: 148
New properties of the divided difference of psi and polygamma functions Jing-Feng TianZhen-Hang Yang Original Paper 18 June 2021 Article: 147
A linear preserver problem on maps which are triple derivable at orthogonal pairs Ahlem Ben Ali EssalehAntonio M. Peralta Original Paper 17 June 2021 Article: 146
Gevrey regularity of the solutions of the inhomogeneous partial differential equations with a polynomial semilinearity Pascal Remy Original Paper 15 June 2021 Article: 145
The supermoduli of SUSY curves with Ramond punctures Ugo BruzzoDaniel Hernández Ruipérez Original Paper 14 June 2021 Article: 144
Sharp inequalities on circular and hyperbolic functions using Bernoulli inequality types Abd Raouf Chouikha Original Paper 14 June 2021 Article: 143
\(\frac{1}{2}\)-derivations of Lie algebras and transposed Poisson algebras Bruno Leonardo Macedo FerreiraIvan KaygorodovViktor Lopatkin Original Paper 13 June 2021 Article: 142
Boas-type theorems for the Bessel transform El Mehdi LoualidAbdelghani ElgargatiRadouan Daher Original Paper 11 June 2021 Article: 141
Sharp Lyapunov-type inequalities for second-order half-linear difference equations with different kinds of boundary conditions Robert Stegliński Original Paper Open access 10 June 2021 Article: 140
Dual and canonical dual K-Bessel sequences in quaternionic Hilbert spaces Hanen Ellouz Original Paper 09 June 2021 Article: 139
Fréchet spaces of general Dirichlet series Andreas DefantTomás Fernández VidalPablo Sevilla-Peris Original Paper 08 June 2021 Article: 138
A new modified semi-analytical technique for a fractional-order Ebola virus disease model H. M. SrivastavaSinan Deniz Original Paper 07 June 2021 Article: 137
Logarithmic convexity and increasing property of the Bernoulli numbers and their ratios Ye ShuangBai-Ni GuoFeng Qi Original Paper 05 June 2021 Article: 135
On totally nonpositive matrices associated with a triple negatively realizable Begoña CantóRafael CantóAna María Urbano Original Paper 03 June 2021 Article: 134
Blow-up for a semilinear heat equation with Fujita’s critical exponent on locally finite graphs Yiting Wu Original Paper 01 June 2021 Article: 133
Some q-supercongruences modulo the square and cube of a cyclotomic polynomial Victor J. W. GuoMichael J. Schlosser Original Paper Open access 31 May 2021 Article: 132
Correction to: Rate of convergence of exponential type operators related to \(p\left( x \right) = 2x^{3/2}\) for functions of bounded variation Ulrich AbelVijay Gupta Correction Open access 29 May 2021 Article: 130
A Banach contraction principle in fuzzy metric spaces defined by means of t-conorms Valentín GregoriJuan-José Miñana Original Paper 28 May 2021 Article: 129
The use of improved-F expansion method for the time-fractional Benjamin–Ono equation Bahar Karaman Original Paper 28 May 2021 Article: 128
Anti-Fubini and pseudo-Fubini functions Luis Bernal-GonzálezMaría del Carmen Calderón-Moreno Original Paper 28 May 2021 Article: 127
On two problems concerning Eberlein compacta Witold Marciszewski Original Paper Open access 26 May 2021 Article: 126
A note on the weak topology of spaces \(C_k(X)\) of continuous functions Jerzy Ka̧kolSantiago Moll-López Original Paper 24 May 2021 Article: 125
Bernstein and Turán-type inequalities for a polynomial with constraints on its zeros Abdullah MirDaniel Breaz Original Paper 24 May 2021 Article: 124
Error bounds and gap functions for various variational type problems Aviv GibaliSalahuddin Original Paper 22 May 2021 Article: 123
Extension of the Švarc–Milnor lemma to gyrogroups Jaturon WattanapanWatchareepan AtiponratTeerapong Suksumran Original Paper 21 May 2021 Article: 122
On Gevrey asymptotics for linear singularly perturbed equations with linear fractional transforms Guoting ChenAlberto LastraStéphane Malek Original Paper 19 May 2021 Article: 121
Orthogonality and smoothness induced by the norm derivatives Debmalya Sain Original Paper 18 May 2021 Article: 120
Sharp self-improving property of discrete Muckenhoupt and Gehring weights Samir H. SakerSafi S. RabieMario Krnić Original Paper 15 May 2021 Article: 119
Compact 4-manifolds admitting special handle decompositions Maria Rita CasaliPaola Cristofori Original Paper 15 May 2021 Article: 118
Generalized Killing Ricci tensor for real hypersurfaces in the complex hyperbolic quadric Changhwa WooHyunjin LeeYoung Jin Suh Original Paper 11 May 2021 Article: 117
Computing tensor generalized inverses via specialization and rationalization Predrag S. StanimirovićJ. Rafael SendraAlberto Lastra Original Paper 11 May 2021 Article: 116
On the stability, integrability and boundedness analyses of systems of integro-differential equations with time-delay retardation Cemil TunçOsman Tunç Original Paper 10 May 2021 Article: 115
A new shrinking projection algorithm for a generalized mixed variational-like inequality problem and asymptotically quasi-\(\phi \)-nonexpansive mapping in a Banach space Mohammad FaridWatcharaporn CholamjiakK. R. Kazmi Original Paper 10 May 2021 Article: 114
Continuum-wise expansiveness for discrete dynamical systems Manseob Lee Original Paper 09 May 2021 Article: 113
Para-Sasaki-like Riemannian manifolds and new Einstein metrics Stefan IvanovHristo ManevMancho Manev Original Paper 07 May 2021 Article: 112
Stable Riemann orbifolds of Schottky type Raquel DíazRubén A. Hidalgo Original Paper 06 May 2021 Article: 111
Denting points of convex sets and weak property (\(\pi \)) of cones in locally convex spaces Fernando García-CastañoM. A. Melguizo PadialG. Parzanese Original Paper 05 May 2021 Article: 110
Generalized inverses of elements and their polarities in rings Tianli LiFei PengHuihui Zhu Original Paper 26 April 2021 Article: 109
Padovan numbers which are palindromic concatenations of two distinct repdigits Taboka P. ChalebgwaMahadi Ddamulira Original Paper Open access 24 April 2021 Article: 108
Essential bounds of Dirichlet polynomials G. MoraE. Benítez Original Paper 21 April 2021 Article: 107
Sharp generalized Seiffert mean bounds for the Toader mean of order 4 Yanlin LiTiehong Zhao Original Paper 20 April 2021 Article: 106
