XXIII Geometrical Seminar

XXIII GEOMETRICAL SEMINAR

Zlatibor, Serbia
August 30^th - September 5^th 2026

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Preliminary list of speakers

Emin Abdullaev (Moscow, Russia) Pointed Gromov-Hausdorff distance between $l^{p}$-wedge sums of metric spaces
Henry Adams (USA), Gromov-Hausdorff distances, Borsuk-Ulam theorems, and Vietoris-Rips complexes
Teresa Arias-Marco (Badajoz, Spain), Symmetric-like properties and the Laplace-Beltrami operator on Riemannian manifolds
Dmitri Alekseevsky (Moscow, Russia), Clifford Modules ,Associsagted Geomegtry and their Applications to Classicau m and Quantum Indoemagtioin
Vitaly Balashchenko (Minsk, Belarus), Generalized nealy Kaehler f-structures on homodeneous spaces and Lie groups
Cornelia-Livia Bejan (Iasi, Romania), Submanifolds of codimension 2 of paracosymplectic manifolds with normal reeb vector field
Pavle Blagojević (Berlin Germany), TBA
Semeon Bogatyy ^★ (Moscow, Russia), Restoring a compact using its exponent
Burcu Cindik (Istanbul, Turkie), Special curvature tensors in four-dimensional manifolds of neutral signature
Ahmet Umut Corapli (Istanbul, Turkie), On hypersurfaces admitting generalized solitons in Riemannian warped products
Ryszard Deszcz (Wrocław, Poland), Some pseudosymmetry type curvature conditions
Ivan Dimitrijević (Belgrade, Serbia), A simple model of nonlocal de Sitter gravity $\sqrt{dS}$
Ivko Dimitrić ^★(Lafayette, USA), TBA
Branko Dragović (Belgrade, Serbia)A Universe with hybrid nonlocality
Vladimir Dragović (Dallas, USA)Isoperiodic deformations of meromorphic differentials on Riemann surfaces and soliton theory
Zdenek Dušek (České Budějovice, Czechia), Geodesic orbit Finsler metrics
Miloš Đorić (Belgrade, Serbia), TBA
Huijun Fan (Beijing, China), Novikov type Landau-Ginzburg model
Evgeny Fominykh (St. Petersburg, Russia), Minimal ideal triangulations of 3-manifolds
Borislav Gajić (Belgrade, Serbia), Higher-dimensional generalizations of the heavy rigid body motion with gyroscope
Ilja Gogić (Zagreb, Croatia), Nonlinear Preserver Problems on Matrix Domains
Nadezda Guseva (Moscow, Russia) Conformal Fedosov structures on compact Riemannian spaces with non-positive sectional curvature
Irena Hinterleitner (Brno, Czech Republic) Formula for the lengths of the height and edges of a right-angled $(n+1)$-hedron
Daniil Iliukhin (Moscow, Russia), A problem of intersection of balls in normed space
Denis Ilyutko (Moscow, Russia),Some classification of oriented graph-links
Alexander Ivanov (Moscow, Russia), Minimal fillings of finite metric spaces
Nikolay Ivanov (Sofia, Bulgaria),On the Quantum Phase Operator
Stefan Ivanov (Sofia, Bulgaria), Spin(7) manifolds, instanton curvature and parallel torsion
Božidar Jovanović (Belgrade, Serbia), $C^1$ and $C^0$ Hamiltonian systems
Louis Kauffman (Chicago, USA) Strict equivalence of multi-virtual linkoids
Đorđe Kocić (Belgrade, Serbia), Hypersurfaces of the sphere $S^6(1)$ with four-dimensional nullity distribution
Mihajlo Krstić (Belgrade, Serbia) Banach space geometry, $c_0$ and $\ll^1$ in operator-valued integration
Elena Kudryavtseva (Moscow, Russia), Symplectic classification of parabolic singularities and cuspidal tori in integrable Hamiltonian systems
İrem Kupeli Erken (Bursa, Turkie), TBA
Alexei Lavrov (Moscow, Russia), Noncompact homogeneous Einstein spaces and extended Poincare algebras
Nenad Lazarov(Belgrade,Serbia), The basic functions of three dimensions of FRLW metric
Ivan Limonchenko (Belgrade, Serbia), Neighborly Murai spheres and the Simplicial Steinitz Problem
Katarina Lukić (Belgrade, Serbia), Noncommutative integrability in cosymplectic geometry
Miroslav Maksimović (Niš, Serbia), Concircularly semi-symmetric metric connection and application to Lorentzian manifolds
Mancho Manev (Plovdiv, Bulgaria), Characterization of $\Pi$-manifolds by tensors generated by the pair of metrics interconnected by the structure
Miodrag Mateljević (Belgrade, Serbia) Schwarz lemma for harmonic maps and minimal surfaces
Semsi Eken Meric (Mersin, Turkie), On Ricci-Yamabe Solitons
Adela Mihai (Brasov, Romania), Special vector fields: torqued and anti-torqued
Josef Mikeš^★ (Olomouc, Czech Republic), Geodesic mappings and their generalizations ”on whole”
Ivan Mikhailov (Moscow, Russia), Gromov–Hausdorff distances between unbounded metric spaces
Vladislava Milenković (Niš, Serbia) Invariant geometric objects of special types of mappings of generalized Riemannian spaces
Dmitry Millionshchikov (Moscow, Russia) Combinatorics of universal enveloping Lie algebras and some geometrical problems
Velichka Milousheva (Sofia, Bulgaria), Canonical Parameters on Timelike Surfaces in pseudo-Euclidean 4-spaces
Andrey Mironov (Novosibirsk, Russia) Billiard trajectories inside cones
Marija Najdanović (Kosovska Mitrovica, Serbia), Geometric properties of infinitesimally deformed dual curves
Yuri Nikolayevski (Melbourne, Australia) Killing tensors on symmetric spaces
Igor Nikonov (Moscow, Russia) Multicrossing homology and secant classes
Yuri Nikonorov (Vladikavkaz, Russia), Properties of plane angles of tetrahedra with a given base
Gleb Nosovskiy (Moscow, Russia) Image sharpening improvement via the geometrical coding approach
Mustafa Özkan (Bursa Turkie), TBA
Milan Pavlović (Belgrade, Serbia), Classification of the geodesic curves of a sub-Riemannian LR system on the Heisenberg group in dimension 5
Alexandar Petkov (Sofia, Bulgaria), The almost Schur lemma and the positivity conditions in quaternionic contact geometry
Patrik Peška (Olomouc, Czech Republic) Non-existence of conformal Fedosov structures on Roter type manifolds
Fedor Popelensky (Moscow, Russia), Integrable billiards and refraction
Marko Radovanović (Belgrade, Serbia), Topological complexity of oriented Grassmann manifolds
Renzo Ricca^★ (Milano, Italy), TBA
Vladimir Rovenski (Haifa, Israel), Geometry of a weak metric structures and their applications
Mića Stanković (Niš, Serbia), Equitorsion Holomorphically Projective Mappings of Generalized K¨ahler Spaces of the First, Second, and Third Kind
Marko Stefanović (Niš, Serbia), Half-Symmetric Connections of Generalized Riemannian Spaces
Nataša Šešum (USA), Four dimensional ancient solutions asymptotic to a bubble sheet
Sergey Stepanov (Moscow, Russia), A curvature-dependent inequality between Dirichlet energy and bienergy with rigidity
Jelena Stojanov (Zrenjanin, Serbia), Computing tensor logarithmic norm: explicit forms and spectral properties
Milica Stojanović (Belgrade, Serbia), Cone-type triangulations of hypercube
Marko Stošić (Lisbon, Portugal), TBA
Anastasia Šubert (Moscow, Russia), Canonical Form of the Inertia Tensor of a Rigid Body in Pseudo-Euclidean Space and on the Lobachevsky
Iskander Taimanov (Novosibirsk, Russia), Central extensions of Lie algebras, dynamical systems, and symplectic nilmanifolds
Svjetlana Terzić (Podgorica, Montenegro), Smooth manifolds in $G_{n,2}$ and $G_{n,2}/T^n$ assigned to the canonical $T^n$-action
Kostadin Trenčevski (Skopje, North Macedonia), Research on geometry of gravitation by distinguishing the spatial and temporal part ofspherically metric
Mustafa Deniz Turkoglu(Istanbul, Turkie) A hyperbolic optimization paradigm for orbital transfers: integrating Riemannian geometry and machine learning
Alexey Tuzhilin^★ (Moscow, Russia), Continuous Gromov-Hausdorff distance
Ana Velimirović(Niš, Serbia),Generalized Riemannian Geometry: An Application to Generative AI
Nenad Vesić (Belgrade, Serbia),On the Role of Riemannian Spaces in the Invariant Theory of Riemannian and Symmetric Affine Connection Spaces
Nenad Vesić (Belgrade, Serbia),Geometrical invariants of thin structure deformation
Andrei Vesnin (Tomsk, Russia), Three-variable transcendental invariant of planar knotoids.
Anton Vikhrov (Moscow, Russia), `Modifications of the continuous Gromov–Hausdorff distance
Srdjan Vukmirović (Belgrade, Serbia), On geometry of screw motion
Handan Yıldırım (Istanbul, Turkie)On classification of $\delta(2, 2)$-ideal Lagrangian submanifolds of dimension-4