Vol 37, No 25 (2023)

The 21st Geometric Seminar

Table of Contents

On $m$-point homogeneous polytopes in Euclidean spaces
Valerii Berestovskii, Yurii Nikonorov
Pell and Pell-Lucas Hybrid Quaternions
Ferhat Kürüz, Ali Dağdeviren
Real hypersurfaces in $S^6(1)$ equipped with structure Jacobi operator satisfying $\mathcal{L}_X l=\nabla_X l$
Djordje Kocic
A Generalization Of Complex, Dual and Hyperbolic Quaternions: Hybrid Quaternions
Ali Dagdeviren
The space of centered planes and generalized bilinear connection
Olga Belova
On the existence of a curvature tensor for given Jacobi operators
Vladica Andrejic, Katarina Lukic
On the Geometry in the Large of Hadamard Manifolds
Sergey Stepanov, Irina Tsyganok
Riemannian and sub-Riemannian structures on a cotangent bundle of Heisenberg group
Tijana Sukilovic, Srdjan Vukmirovic
Classification of second order symmetric tensors on manifolds through an associated fourth order tensor
Graham Hall
Basic Classes of Timelike General Rotational Surfaces in the Four-dimensional Minkowski Space
Victoria Bencheva, Velichka Milousheva
Global scheme of the basic interactions and their geometrical interpretations
Kostadin Trencevski
Invariants for Equitorsion Geometric Mappings
Nenad O. Vesic, Vladislava Milenković, Mića Stanković
On isometric immersions of sub-Riemannian manifolds
Vladimir Rovenski
Helicoid and Curvature Based Functional Variations
Milica D. Cvetkovic, Ljubica S. Velimirovic
On the rigidity and analytical rigidity of two-connected regular surfaces of revolution for a given direction of displacement of edge points
Lenka Rýparová
On General Solutions of Equidistant Vector Fields on Two-dimensional (Pseudo-) Riemannian Spaces
Patrik Peska, Josef Mikes, Lenka Ryparova, Olena Chepurna
Geodesic equations in the weak field limit of general $f(R)$ gravity theory
Nenad Djura Lazarov, Vesna Borka Jovanovic, Dusko Borka, Predrag Jovanovic
Quivers associated with finite rings - a cohomological approach
Aleksandar T Lipkovski, Jelena Matović
Bounds on graviton mass and constraining Yukawa-like gravitational potential from planetary motion in the Solar System
Dusko Borka, Vesna Borka Jovanovic, Predrag Jovanovic
Eigenproblem of tensors - a geometrical viewpoint
Jelena Stojanov, Vladimir Balan
On the Roter Type of Generalised Wintgen Ideal Legendrian Submanifolds
Aleksandar Sebekovic
The gravitational energy-momentum pseudo-tensor in higher-order theories of gravity
Salvatore Capozziello, Maurizio Capriolo
Surfaces defined by bending of knots
Svetozar R. Rančić, Marija S. Najdanović, Ljubica S. Velimirović
On the Schwarzschild-de Sitter metric of nonlocal de Sitter gravity
Ivan Dimitrijevic, Branko Dragovich, Zoran Rakic, Jelena Stankovic
ON THE ISOMETRIES OF HOMOGENEOUS NEARLY K¨AHLER S3 × S3
Milos B Djoric, Mirjana Djoric
Almost K\"ahler structures on complex hyperbolic space
Andrijana Dekic
MODULUS OF CONTINUITY OF NORMAL DERIVATIVE OF A HARMONIC FUNCTIONS AT A BOUNDARY POINT
Milos Arsenovic, Miodrag Mateljevic
WEIGHTED COMBINATORIAL RICCI FLOW AND METRICS DEFINED BY DEGENERATE CIRCLE PACKINGS
Theodore Yu. Popelensky
Determinants of Circulant Matrices with Gaussian Nickel Fibonacci Numbers
Fatih Yilmaz, Aybüke Ertaş, Seda YAMAÇ AKBIYIK
Submanifolds of codimension 2 of paracosymplectic manifolds with normal Reeb vector field
Cornelia-Livia Bejan, Galia Nakova
On the formality problem for manifolds with special holonomy
Iskander Taimanov
On generalized almost para-Hermitian spaces
Milos Zoran Petrovic