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arXiv research

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.

169,051 papers · 148 categories

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55109164218 · May 202619922001200920182026
48 results for fixed degree

The paper extends deformation theory for curves of fixed degree in graded manifolds.

problem Computing the first variation of length functionals for curves of fixed degree.
method Analyzes curves in graded manifolds with Riemannian metrics and uses differential equations.
result Provides a sufficient condition for deforming curves of fixed degree.

The paper studies submanifolds of fixed degree with constraints on variations.

problem Variations of submanifolds of fixed degree in a graded manifold.
method Formulates area functional and associated variational vector fields, derives partial differential equations, and computes Euler-Lagrange equations.
result Mean curvature operator can be of third order when deformability condition holds.

We prove finiteness of hyperkaehler Lagrangian fibrations in any fixed dimension with fixed Fujiki constant and discriminant of the Beauville-Bogomolov-Fujiki lattice, up to deformation. We also prove finiteness of hyperkähler Lagrangian fibrations with an ample line bundle of a given degree on the general fiber of the…

2015-09-07abs ↗pdf ↗

New study shows low-degree polynomial algorithms struggle at clause densities close to Fix's.

problem Finding satisfying assignments in random k-SAT formulas at high clause densities.
method Analysis of low-degree polynomial algorithms and a new many-way overlap gap property.
result No efficient algorithms can find satisfying assignments at clause densities close to Fix's.

First the title could be also understood as ``3-manifolds related by non-zero degree maps" or "Degrees of maps between 3-manifolds" for some aspects in this survey talk. The topology of surfaces was completely understood at the end of 19th century, but maps between surfaces kept to be an active topic in the 20th centur…

2003-04-21abs ↗pdf ↗

Derives log-corrections in AdS4/CFT3 using supergravity localization.

problem Factorizing log-corrections in AdS4/CFT3.
method Supergravity localization, Atiyah-Singer index theorem, fixed points (NUTs), fixed two-manifolds (Bolts).
result General fixed-point formula for log-corrections in large N expansion.

Study conic line arrangements of degree 7, finding their topology and connected components.

problem Understanding the topology of conic line arrangements of degree 7.
method Identifying a π1π_1-equivalent Zariski pair to prove the existence of a conic line arrangement with specific combinatorics.
result Determine the number of connected components of conic line arrangements of degree 7.

In this paper, we explore degrees of freedom in deep sigmoidal neural networks. We show that the degrees of freedom in these models is related to the expected optimism, which is the expected difference between test error and training error. We provide an efficient Monte-Carlo method to estimate the degrees of freedom f…

2016-03-30abs ↗pdf ↗

The study examines polynomial growth functions on gradient shrinking Ricci solitons.

problem Characterizing harmonic and caloric functions with polynomial growth on gradient shrinking Ricci solitons.
method Analysis of polynomial growth functions under different curvature conditions.
result Finite dimensional estimates for harmonic and caloric functions with polynomial growth.

Moduli spaces of semi-stable real and quaternionic vector bundles of a fixed topological type admit a presentation as Lagrangian quotients, and can be embedded into the symplectic quotient corresponding to the moduli variety of semi-stable holomorphic vector bundles of fixed rank and degree on a smooth complex projecti…

2011-09-23abs ↗pdf ↗

Complex manifold describes solvable Pell-Abel equations with fixed degrees.

problem Understanding the space of solvable Pell-Abel equations with fixed degrees.
method Described the space of Pell-Abel equations as a complex manifold and computed its connected components.
result The space of Pell-Abel equations with fixed degrees forms a complex manifold with connected components described by an invariant.

We prove that the completed cohomology groups of SL_N(Z) in fixed degree stabilize as N goes to infinity. We also prove that the action of Hecke operators on stable cohomology is trivial, in a precisely defined sense.

2013-11-20abs ↗pdf ↗

Study mapping class group action on de Rham quasimorphisms, finding no fixed points.

problem Action of mapping class group on de Rham quasimorphisms.
method Examined the action of mapping class group on de Rham classes in bounded cohomology of a hyperbolic surface.
result No fixed points in the action of mapping class group on de Rham quasimorphisms.

In this paper we consider the topological side of a problem which is the analogue of Sen's S-duality testing conjecture for Hitchin's moduli space of rank 2 stable Higgs bundles of fixed determinant of odd degree over a Riemann surface. We prove that all intersection numbers in the compactly supported cohomology vanish…

1998-05-15abs ↗pdf ↗

Unified finetuning of all quantization degrees of freedom achieves state-of-the-art 4-bit quantization.

problem Achieving high accuracy in quantized neural networks while maintaining speed and resource constraints.
method Quantization-aware finetuning (QFT) that jointly optimizes all quantization degrees of freedom.
result 4-bit weight quantization results on-par with state-of-the-art (SoTA) within PTQ constraints.

Study convex hulls of orbits for compact groups, defining new invariants related to polynomial degrees.

problem Understanding properties of convex hulls of coadjoint orbits of compact groups.
method Introduce partial convex hulls and use them to define numerical invariants.
result Orbits with new invariants form rational convex polyhedral cones related to Littlewood-Richardson cones.

Surgery, as developed by Browder, Kervaire, Milnor, Novikov, Sullivan, Wall and others is a method for comparing homotopy types of topological spaces with diffeomorphism or homeomorphism types of manifolds of dimension >= 5. In this paper, a modification of this theory is presented, where instead of fixing a homotopy t…

1999-05-01abs ↗pdf ↗

Unconditional proof of Demailly's transcendental Morse inequality for higher cohomology classes using a general gauge-fixing for the Monge-Ampère-type equation.

problem Unconditional proof of Demailly's transcendental Morse inequality for higher cohomology classes
method General gauge-fixing for the (a,b)(a,b) Monge-Ampère-type equation
result Unconditional proof of Demailly's transcendental Morse inequality for higher-degree forms

The aim of this paper is twofold. On the one hand, it provides a review of the links between random tensor models, seen as quantum gravity theories, and the PL-manifolds representation by means of edge-colored graphs (crystallization theory). On the other hand, the core of the paper is to establish results about the to…

2017-04-10abs ↗pdf ↗

Margalit and Schleimer observed that Dehn twists on orientable surfaces have nontrivial roots. We investigate the problem of roots of a Dehn twist t_c about a nonseparating circle c in the mapping class group M(N_g) of a nonorientable surface N_g of genus g. We explore the existence of roots and, following the work of …

2017-01-02abs ↗pdf ↗

Study on flat singular points of area-minimizing currents, defining a singularity degree.

problem Understanding the structure of singular points in area-minimizing integral currents.
method Analysis of vanishing sequences of scales around a singular point, defining a singularity degree.
result The singularity degree is independent of the chosen vanishing sequence and has interesting properties.

A method to automatically choose feature dimensions in linear attention for better approximation quality.

problem Choosing the feature dimension in linear attention to balance quality and efficiency.
method Statistical degrees of freedom for determining feature dimension, layer-wise training strategy.
result Our method achieves smaller approximation error compared to fixed dimensions and improves model performance.

An automorphism on a complex supermanifold M\mathcal M is called unipotent if it reduces to the identity on the associated graded supermanifold gr(M)gr(\mathcal M). These automorphisms are close to be complementary to those responsible for homogeneity of a supermanifold. In analogy, their study yields results on the clas…

2016-07-23abs ↗pdf ↗

Random spherical harmonics on S3S^3 have a single nodal component with expected genus proportional to mNmN.

problem Understanding the topology of nodal sets of random spherical harmonics.
method Analyzing the real and imaginary parts of equivariant spherical harmonics on S3S^3.
result The expected genus of nodal sets is proportional to mNmN for fixed cc.

New degree theory proves existence of solitons on 4D manifolds.

problem Existence of gradient expanding solitons on 4D manifolds.
method Developed new degree theory for 4D, asymptotically conical gradient expanding solitons.
result Existence of solitons asymptotic to any cone over S^3 with non-negative scalar curvature.

We study contact structures on nonnegatively-graded manifolds equipped with homological contact vector fields. In the degree 1 case, we show that there is a one-to-one correspondence between such structures (with fixed contact form) and Jacobi manifolds. This correspondence allows us to reinterpret the Poissonization p…

2011-11-21abs ↗pdf ↗

Given a null-homologous knot KK in a rational homology 3-sphere MM, and the standard infinite cyclic covering X~\tilde{X} of (M,K)(M,K), we define an invariant of triples of curves in X~\tilde{X}, by means of equivariant triple intersections of surfaces. We prove that this invariant provides a map φφ on $\Al^{\otimes 3…

2014-03-03abs ↗pdf ↗

In this article, we show the existence of conjugations on many simply-connected spin 6-manifolds with free integral cohomology. In a certain class the only condition on X^6 to admit a conjugation with fixed point set M^3 is the obvious one: the existence of a degree-halving ring isomorphism between the Z_2-cohomologies…

2010-01-06abs ↗pdf ↗

Characterizes Wahl singularities in del Pezzo surface degenerations.

problem Classifying Wahl singularities in degenerations of del Pezzo surfaces.
method Introducing del Pezzo Wahl chains with markings, proving degenerations to toric surfaces, establishing correspondences, and using Hacking's exceptional collections.
result Established a one-to-one correspondence between marked del Pezzo surfaces and fake weighted projective planes.

Study shows neural ODEs generalize well on synthetic graphs but struggle with degree heterogeneity and clustering.

problem Understanding neural ODEs on complex networks, especially with varying graph sizes and structures.
method Synthetic data from five dynamical systems on graphs, using Barabási-Barzel form vector fields.
result Degree heterogeneity and dynamical system type are primary factors affecting neural ODEs' generalization.