A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.
Researchers solve the realization of Jordan-Kronecker invariants in Lie algebras.
The abstract proves polygon inscriptions in curves with specific edge ratios.
Study correlations of spectral lengths and displacements in higher rank groups.
Shows uniqueness of irreducible generating tuples for Fuchsian groups.
The paper studies curvatures in metric Jordan algebras, proving unique connections and curvature formulas.
Study pseudo-Riemannian metrics on Jordan superalgebras.
New Jordan Floer homology shows every curve inscribes every isosceles trapezoid.
Unified framework for N-tuples learning improves weakly supervised tasks.
Every curve can fit countless rhombuses.
As previously known, all 3-manifolds of genus two can be represented by edge-coloured graphs uniquely defined by 6-tuples of integers satisfying simple conditions. The present paper describes an ``elementary transformation'' on these 6-tuples which changes the associated graph but does not change the represented manifo…
We present new results about Jordan algebras and Jordan coalgebras, and we discuss about their connections with the Yang-Baxter equations.
Study Gromov-Hausdorff convergence of metric pairs and tuples.
We study a notion of "width" for Jordan curves in , paying special attention to the class of quasicircles. The width of a Jordan curve is defined in terms of the geometry of its convex hull in hyperbolic three-space. A similar invariant in the setting of anti de Sitter geometry was used by Bonsante-Schle…
Selects points from Jordan domains on Riemannian surfaces.
Let s be at least 2. We construct Ricci flat pseudo-Riemannian manifolds of signature (2s,s) which are not locally homogeneous but whose curvature tensors never the less exhibit a number of important symmetry properties. They are curvature homogeneous; their curvature tensor is modeled on that of a local symmetric spac…
We develop the concept of a double (more generally n-tuple) principal bundle departing from a compatibility condition for a principal action of a Lie group on a groupoid.
The paper generalizes Nielsen equivalence to 2-orbifolds.
Jordan algebras in information geometry linked to metrics on probability distributions.
Square inscribed in a curve made of two graph functions.
Paper extends theorem on covering spaces and Jordan curves.
We compute the A-polynomial 2-tuple of twisted Whitehead links. As applications, we determine canonical components of twisted Whitehead links and give a formula for the volume of twisted Whitehead link cone-manifolds.
We prove that the family of all connected n-dimensional real Lie groups is uniformly Jordan for every n. This implies that all algebraic groups (not necessarily affine) over fields of characteristic zero and some transformation groups of complex spaces and Riemannian manifods are Jordan.
To study the Lawson-Osserman's counterexample to the Bernstein problem for minimal submanifolds of higher codimension, a new geometric concept, submanifolds in Euclidean space with constant Jordan angles(CJA), is introduced. By exploring the second fundamental form of submanifolds with CJA, we can characterize the Laws…
For a Jordan domain in the plane the length metric space of points connected to an interior point by a curve of finite length is a CAT(0)space and Gromov hyperbolic. With respect to the cone topology, that space plus its boundary at infinity is topologically the same as the original Jordan domain.
The aim of this paper is to offer an overview of the most important applications of Jordan structures inside mathematics and also to physics, up-dated references being included. For a more detailed treatment of this topic see - especially - the recent book Iordanescu [364w], where sugestions for further developments ar…
Two proofs show that removing a loop from a plane circuit splits the plane.
Pseudo-Riemannian manifolds of balanced signature which are both spacelike and timelike Jordan Osserman nilpotent of order 2 and of order 3 have been constructed previously. In this short note, we shall construct pseudo-Riemannian manifolds of signature (2s,s) for any s (which is at least 2) which are spacelike Jordan …
Study finds conditions for operator fields to be in strictly upper triangular form in small dimensions.
We construct new examples of algebraic curvature tensors so that the Jordan normal form of the higher order Jacobi operator is constant on the Grassmannian of subspaces of type in a vector space of signature . We then use these examples to establish some results concerning higher order Osserman and highe…
The paper classifies hypercomplex Lie algebras and solvmanifolds using quaternionic Jordan form.
Similarity maps cyclic quadrilaterals onto smooth curves.
Automorphism groups of Hopf manifolds are finite and have a bounded order.
The paper analyzes orbits of integer tuples using braid diagrams.
A new approach to Morse theory using folded ribbon trees.
For two disjoint rectifiable star-shaped Jordan curves (including round circles) in the asymptotic boundary of hyperbolic 3-space, if the distance (see Definition 1.8) between these two Jordan curves are bounded from above by some constant, then there exists an annulus-type area minimizing (or equivalently least area) …
Self-affine arcs without inner weak separation are parabolic segments.
A collection of data vectors is called a -tuple, and the association strength among the vectors of a tuple is termed as the \emph{hyperlink weight}, that is assumed to be symmetric with respect to permutation of the entries in the index. We herein propose Bregman hyperlink regression (BHLR), …
Curves inscribe rectangles with positive area.
Symmetric Poisson structures linked to geodesic foliations and Jordan algebras.
Let C be a real-analytic Jordan curve in . Then C cannot bound infinitely many disk-type minimal surfaces which provide relative minima of area.
We show that both, the Jordan curve theorem and the Schoenflies theorem extend to non-metric manifolds (at least in the two-dimensional context), and conclude by some dynamical applications à la Poincaré-Bendixson.
Floer homology applied to inscribing rectangles into curves.
We provide a strengthening of Jordan separation, to the setting of maps from a compact topological space X into a sphere, where the source space X is not necessarily a codimension one sphere, and the map is not necessarily injective.
We present some examples of curvature homogeneous pseudo-Riemannian manifolds which are k-spacelike Jordan Stanilov; their higher order curvature operator has constant Jordan normal form on the Grassmannian of unoriented k-dimensional spacelike subspaces of the tangent plane.
A pseudo-Riemannian manifold is said to be spacelike Jordan IP if the Jordan normal form of the skew-symmetric curvature operator depends upon the point of the manifold, but not upon the particular spacelike 2-plane in the tangent bundle at that point. We use methods of algebraic topology to classify connected spacelik…
Paper proves circle packings converge to Riemann mapping for Jordan domains.
Study on deformations of symmetric spaces using Jordan algebras.
We exhibit 3 families of complete curvature homogeneous pseudo-Riemannian manifolds which are modeled on irreducible symmetric spaces and which are not locally homogeneous. All of the manifolds have nilpotent Jacobi operators; some of the manifolds are, in addition, Jordan Osserman and Jordan Ivanov-Petrova.