Vol 36, No 3 (2022)

Table of Contents

Some essential spectra of unbounded operator matrices pencils with non diagonal domain and application
Nedra Moalla
Second degree linear forms and semiclassical forms of class one. A case study
Imed Ben Salha, Francisco Marcellan, Mohamed Khalfallah
Sharp Bounds for Certain $m$-linear Integral Operators on $p$-adic Function Spaces
Batbold Tserendorj, Yoshihiro Sawano, Tumendemberel Ganbaatar
Discontinuous linear Hamiltonian systems
Bilender P Allahverdiev, Hüseyin Tuna
The error estimates of Kronrod extension for Gauss-Radau and Gauss-Lobatto quadrature with the four Chebyshev weights
Davorka Jandrlić, Aleksandar Pejčev, Miodrag Spalević
An Association between Digraphs and Rings
Aleksandar Lipkovski, Hamza Daoub, Osama Shafah
Some results in Cauchy-Stieltjes Kernel families
Raouf Fakhfakh
On Kantorovich variant of Baskakov type operators preserving some functions
Khursheed J. Ansari
The common solution of twelve matrix equations over the quaternions
Qing-Wen Wang
Fixed points of mappings on extended cone b-metric space over real Banach algebra
Wahid Ullah, Maria Samreen, Tayyab Kamran

Ljubica Velimirovic - Differential geometry

Perfect fluid spacetimes and gradient solitons
Uday Chand De, Carlo Alberto Mantica, Young Jin Suh
Some characterizations of strongly partial isometry elements in rings with involutions
Shiyin Zhao, Junchao Wei
New Characterizations of the generalized B-T inverse
Sanzhang Xu
Products and inverses of multidiagonal matrices with equally spaced diagonals
László István Losonczi
Some studies on partial isometry in rings with involution
Xinyu Yang, Zhiyong Fan, Junchao Wei
On sublinear quasi-metrics and neighborhoods in locally convex cones
Zeynab Yousefi, Mohammad Reza Motallebi
Remarks on $R$-separability of Pixley--Roy hyperspaces
Zuquan Li
Domain of Padovan $q$-Difference Matrix in Sequence Spaces $\ell_p$ and $\ell_{\infty}$
Taja Yaying, Bipan Hazarika, S.A. Mohiuddine
Conditions under which convergence of a sequence or its certain subsequences follows from deferred Ces\`{a}ro summability
Sefa Anıl Sezer, İbrahim Çanak, Hemen Dutta
Equivalence among L-closure (interior) operators, L-closure (interior) systems and L-enclosed (internal) relations
Fangfang Zhao, Bin Pang
On Generalized W2-Curvature Tensor of Para-Kenmotsu Manifolds
TEERATHRAM RAGHUWANSHI, SHRAVAN KUMAR PANDEY, MANOJ KUMAR PANDEY, ANIL GOYAL
An existence results for a fractional differential equation with \phi-fractional derivative
Moustafa Beddani, Benaouda Hedia
On congruences with binomial coecients and harmonic numbers
Sibel Koparal, Laid Elkhiri, Neşe Ömür
Strong coupled proximal points of cyclic coupled proximal mappings using Ck-class functions in S-metric spaces
Gutti Venkata Ravindranadh Babu, Durga Sailaja Pericherla, GADHAVAJJALA Srichandana
On Integral Generalization of Lupas-Jain Operators
Prashantkumar Gordhnbhai Patel, Murat Bodur
Anti-Gaussian quadrature rule for trigonometric polynomials
Nevena Z. Petrovic, Marija P. Stanic, Tatjana V. Tomovic Mladenovic

Hemen Dutta - Nonlinear analysis, Functional equation, Summability

On the Stability of Multicubic-Quartic and Multimixed Cubic-Quartic Mappings
Zohreh Abbasbeygi, Abasalt Bodaghi, Ayoub Gharibkhajeh