Results 71 to 80 of about 1,134,625 (212)
The existence of Cartan connections and geometrizable principle bundles [PDF]
Archiv der Mathematik, 2004 6 pages, corrected the principal typo :)
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An extended definition of Anosov representation for relatively hyperbolic groups
Journal of Topology, Volume 19, Issue 2, June 2026.Abstract We define a new family of discrete representations of relatively hyperbolic groups which unifies many existing definitions and examples of geometrically finite behavior in higher rank. The definition includes the relative Anosov representations defined by Kapovich–Leeb and Zhu, and Zhu–Zimmer, as well as holonomy representations of various ...
Theodore Weisman
wiley +1 more source
Homogeneous Cartan geometries [PDF]
, 2007 summary:We describe invariant principal and Cartan connections on homogeneous principal bundles and show how to calculate the curvature and the holonomy; in the case of an invariant Cartan connection we give a formula for the infinitesimal automorphisms.
Hammerl, Matthias
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On the Cartan and Berwald expressions of Finsler connections
ON THE CARTAN AND BERWALD EXPRESSIONS OF FINSLER CONNECTIONS, 1986 M. Matsumoto characterized the Cartan connection \(C\Gamma\) of a Finsler space (M,L) by the vanishing of \[ (*)\quad g_{ij| k},\quad g_{ij}|_ k,\quad D^ i_ k,\quad T_ j^ i{}_ k,\quad S_ j^ i{}_ k \] (h- and v-covariant derivatives of \(g_{ij}\), the deflection tensor, and two torsion tensors).
AIKOU, Tadashi, HASHIGUCHI, Masao
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The universal family of punctured Riemann surfaces is Stein
Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.Abstract We show that the universal Teichmüller family V(g,n)$V(g,n)$ of compact Riemann surfaces of genus g⩾0$g\geqslant 0$ with n>0$n>0$ punctures is a Stein manifold. We describe its basic function‐theoretic properties and pose some challenging questions. We show, in particular, that the space of fibrewise algebraic functions on the universal family
Franc Forstnerič
wiley +1 more source
Cosmology in the De Donder–Weyl formulation of Einstein–Cartan gravity
European Physical Journal C: Particles and FieldsWe investigate torsion-driven cosmological dynamics within the framework of Einstein–Cartan gravity using the De Donder–Weyl Hamiltonian formalism, where the tetrad and Lorentz connection act as independent variables and the Hamiltonian includes ...
Aarav Shah, Maxim Khlopov, Maxim Krasnov
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A categorification of combinatorial Auslander–Reiten quivers
Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.Abstract We provide a categorification of Oh and Suh's combinatorial Auslander–Reiten quivers in the simply laced case. We work within the perfectly valued derived category pvd(ΠQ)$\mathrm{pvd}(\Pi _Q)$ of the 2‐dimensional Ginzburg dg algebra of a Dynkin quiver Q$Q$.
Ricardo Canesin
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Superstring field theory and the Wess-Zumino-Witten action
Journal of High Energy Physics, 2017 We describe a notion of “higher” Wess-Zumino-Witten-like action which is natural in the context of superstring field theories formulated in the large Hilbert space.
Theodore Erler
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Red Blood Cell Membrane Mechanics Using Discrete Exterior Calculus (DEC) and Optimization
International Journal for Numerical Methods in Biomedical Engineering, Volume 42, Issue 4, April 2026.We present a novel DEC approach for calculating RBC shapes applicable to other cell types and membrane problems. We derive an energy minimization equation that can be solved semi‐implicitly, and a Lie derivative method to control node spacing. This novel work should aid computational modeling in many biological situations.
Keith C. Afas, Daniel Goldman
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World War exhibit at Ohio State Museum
, 1940 This photograph shows the "Ohio in the Wars" room at the Ohio State Museum. Seen browsing the exhibit are Dr. William Overman, Curator of History, and Miss Mary Poster, a member of the museum staff.
Ohio History Connection
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