Description

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In This Issue  
Editorial Messages

Obituaries
Jean Mawhin
Jaroslav Kurzweil (1926-2022)

Research Articles
Immanuel Ben Porat
Convexity In Multivalued Harmonic Functions

Vladimír Baláž, Alain Faisant, and Georges Grekos
On Real Algebras Associated with Ideal Convergence

S. Mahanta and S. Ray
A Generalised Continuous Primitive Integral and Some of its Applications

Ryoki Fukushima, Makoto Nakashima, and Nobuo Yoshida
The Period Group of a Characteristic Function

Ion Chiţescu and Loredana Ioana
A Cantor-Type Construction. Invariant Set and Measure

T. H. Steele
The Density of Borel Sets

Surinder Pal Singh Kainth and Narinder Singh
Henstock-Kurzweil Integration on Metric Spaces Revisited

Idris Assani and Aidan J. Young
Non-Autonomous Spatial-Temporal Differentiation Theorems for Group Endomorphisms

Alina A. Shalukhina
On the Extension of the Reverse Hölder Inequality for Power Functions on the Real Axis

Inroads
Steven G. Krantz
Geometrically Significant Sets of Measure Zero

Clara Ying Yi Lim and Tin Lam Toh
A Note on Henstock-Itô’s Non-Stochastic Integral

Marta Kossaczká and Luděk Zajíček
On the Set of Points at which an Increasing Continuous Singular Function has a Nonzero Finite Derivative

Errata
Riddhi Shah and Alok K. Yadav
Errata: Dynamics of Certain Distal Actions on Spheres