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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.

168,695 papers · 148 categories

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48 results for Moore spaces

Describes the relationship between two spectral sequences and their joint refinement.

problem Computing the cohomology of a group or space using spectral sequences.
method Joint tri-graded refinement of the Leray--Serre and Eilenberg--Moore spectral sequences.
result One of the spectral sequences always degenerates from its second page, and the other satisfies a local-to-global property.

In this paper we construct the differential equations of the stream lines that characterize plasma regarded as a non-isotropic medium geometrized by a jet rheonomic time-invariant Berwald-Moor metric. Section 1 contains historical notes regarding the Plasma Physics and its geometrical description. Section 2 analyzes th…

2010-05-09abs ↗pdf ↗

Space exploration technology advances exponentially, consistent with Moore's and Wright's laws.

problem Predicting the advancement of space exploration technology.
method Analysis of Moore's and Wright's laws applied to space exploration technology.
result Spacecraft technology advances exponentially, consistent with Moore's and Wright's laws.

Geometrically studies Moore-Penrose inverse and polar decomposition continuity.

problem Continuity of Moore-Penrose inverse for perturbations by operator ideals.
method Geometric construction using essential codimension and Banach-Lie group action.
result Moore-Penrose inverse is a real analytic map between manifolds.

The paper determines modular cohomotopy groups up to extensions using classical and unstable homotopy methods.

problem Determining modular cohomotopy groups up to extensions.
method Classical methods of primary cohomology operations and unstable homotopy theory of Moore spaces.
result Determines modular cohomotopy groups up to extensions and specific groups like π3(X;Z(2))π^3(X;\mathbb{Z}_{(2)}).

The aim of this paper is to develop on the 1-jet space J^1(R,M^3) the Finsler-like geometry (in the sense of distinguished (d-) connection, d-torsions and d-curvatures) of the rheonomic Berwald-Moor metric of order three. Some natural geometrical field theories (gravitational and electromagnetic) produced by the preced…

2010-02-23abs ↗pdf ↗

We give an updated extended survey of results related to the celebrated unsolved generalized R. L. Moore problem. In particular, we address the problem of characterizing codimension one manifold factors, i.e. spaces XX having the property that X×RX \times \mathbb{R} is a topological manifold. A main part of the paper i…

2012-01-18abs ↗pdf ↗

The aim of this paper is to expose some geometrical properties of the locally Minkowski-Cartan space with the Berwald-Moor metric of momenta. This space is regarded as a particular case of the mm-th root Cartan space. Thus, Section 2 studies the vv-covariant derivation components of the mm-th root Cartan space. Sect…

2008-02-20abs ↗pdf ↗

Survey and generalization of implosion and contraction in symplectic and hyperkähler geometry.

problem Exploring implosion and contraction in symplectic and hyperkähler geometry.
method Survey and extension of implosion construction to general reductive groups, interpretation in Moore-Tachikawa category, generalization of contraction construction.
result Generalization of implosion and contraction concepts to hyperkähler and complex symplectic situations.

Complete description of BNSR invariants for Lodha-Moore groups, proving finiteness properties.

problem Computing Bieri-Neumann-Strebel-Renz invariants for Lodha-Moore groups.
method Variation of Bestvina-Brady discrete Morse theory applied to cluster complex.
result All higher invariants of Lodha-Moore groups coincide with the second invariant, proving finiteness properties.

We study hyperkahler metrics and hyperholomorphic connections of Hitchin's moduli spaces after Gaiotto, Moore and Neitzke. Their construction via the twistor technique produces intricate wall crossing behaviors. For certain four dimensional Hitchin's moduli spaces local models and degeneration to local models near sing…

2012-08-18abs ↗pdf ↗

New groups can't be fundamental groups of symplectic Calabi-Yau manifolds.

problem Proving certain groups cannot be fundamental groups of symplectic Calabi-Yau manifolds.
method Using the method of Friedl and Vidussi, they showed these groups cannot be fundamental groups of SCY manifolds.
result The Lodha--Moore groups and their nn-adic generalizations cannot be fundamental groups of any SCY manifold.

For each integer N2N\geq 2, Mariño and Moore defined generalized Donaldson invariants by the methods of quantum field theory, and made predictions about the values of these invariants. Subsequently, Kronheimer gave a rigorous definition of generalized Donaldson invariants using the moduli spaces of anti-self-dual conne…

2017-01-03abs ↗pdf ↗

We consider Hitchin's hyperkähler metric gL2g_{L^2} on the SU(n)SU(n)-Hitchin moduli space moduli space over a compact Riemann surface. We prove that the difference between the metric gL2g_{L^2} and a simpler "semiflat" hyperkähler metric gsfg_{\mathrm{sf}} is exponentially-decaying along generic rays in the Hitchin moduli s…

2018-10-03abs ↗pdf ↗

Certain six-dimensional (1,0) supersymmetric little string theories, when compactified on T3T^3, have moduli spaces of vacua given by smooth K3 surfaces. Using ideas of Gaiotto-Moore-Neitzke, we show that this provides a systematic procedure for determining the Ricci-flat metric on a smooth K3 surface in terms of BPS d…

2018-10-24abs ↗pdf ↗

Generalized Donaldson invariants of 4-manifolds are defined, using moduli spaces of anti-self-dual connections with structure group SU(N) or PSU(N). Some values of the invariants are calculated for the case that the 4-manifold arises by the knot-complement construction of Fintushel and Stern. The results are consistent…

2004-07-29abs ↗pdf ↗

In this article we show that some of the recent results of Marino, Moore, and Peradze (math.DG/9812042, hep-th/9812055) -- in particular their conjecture that all closed, smooth four-manifolds with b_2^+ > 1 (and Seiberg-Witten simple type) are of `superconformal simple type' -- can be understood using a simple mathema…

1998-12-21abs ↗pdf ↗

Using Hirasawa-Murasugi's classification of fibered Montesinos knots we classify the L-space Montesinos knots, providing further evidence towards a conjecture of Lidman-Moore that L-space knots have no essential Conway spheres. In the process, we classify the fibered Montesinos knots whose open books support the tight …

2014-04-30abs ↗pdf ↗

Let Map(K,X) denote the space of pointed continuous maps from a finite cell complex K to a space X. Let E_* be a generalized homology theory. We use Goodwillie calculus methods to prove that under suitable conditions on K and X, Map(K, X) will send a E_*--isomorphism in either variable to a map that is monic in E_* hom…

2004-07-08abs ↗pdf ↗

Study configuration spaces of punctured spaces, focusing on homology and group actions.

problem Homology of configuration spaces of punctured spaces.
method Analyzes configuration spaces of punctured spaces, using CW-complexes and Borel-Moore homology.
result Homology groups of configuration spaces depend on the fundamental group of the punctured space.

General rotational surfaces as a source of examples of surfaces in the four-dimensional Euclidean space have been introduced by C. Moore. In this paper we consider the analogue of these surfaces in the Minkowski 4-space. On the base of our invariant theory of spacelike surfaces we study general rotational surfaces with…

2013-12-05abs ↗pdf ↗

Let G/KG/K be an irreducible Hermitian symmetric spaces of compact type with the standard homogeneous complex structure. Then the real symplectic manifold (T(G/K),Ω)(T^*(G/K),Ω) has the natural complex structure JJ^-. We construct all GG-invariant Kähler structures (J,Ω)(J,Ω) on homogeneous domains in T(G/K)T^*(G/K) anticommuting wi…

2003-02-17abs ↗pdf ↗

We describe the orbit space of the action of the group Sp(2)Sp(1)\mathrm{Sp}(2)\mathrm{Sp}(1) on the real Grassmann manifolds Grk(H2)\mathrm{Gr}_k(\mathbb{H}^2) in terms of certain quaternionic matrices of Moore rank not larger than 22. We then give a complete classification of valuations on the quaternionic plane H2\mathbb{H}^2 w…

2014-01-21abs ↗pdf ↗

The paper constructs homotopically non-trivial spheres in complexified spaces.

problem Embedding spheres in complexified spaces defined by hyperplane arrangements.
method Introducing locally consistent systems of half-spaces, embedding a sphere, and computing twisted intersection numbers.
result The constructed sphere is homotopically non-trivial if the half-space system is globally consistent.

Study constructs solutions for evolving hypersurfaces using inverse spacetime mean curvature.

problem Evolution of hypersurfaces in spacetime.
method Weak solutions for hypersurfaces evolving along inverse spacetime mean curvature in asymptotically flat maximal initial data sets.
result Weak solution detects both future- and past-trapped apparent horizons.

In this note we revisit the subject of anomaly cancelation in string theory and M-theory on manifolds with String structure and give three observations. First, that on String manifolds there is no E8 x E8 global anomaly in heterotic string theory. Second, that the description of the anomaly in the phase of the M-theory…

2008-07-30abs ↗pdf ↗

Given two compact n-dimensional manifolds in the smooth, piecewise linear or topological categories, basic results of B. Mazur and others give simple criteria for determining whether their products with Euclidean spaces of sufficiently large dimension are isomorphic in the given category. This paper studies such questi…

2011-04-20abs ↗pdf ↗

We review a construction of hyperkahler metrics proposed in joint work of Davide Gaiotto, Greg Moore and the author. A key ingredient in this construction is a collection of integer "DT invariants" obeying the wall-crossing formula of Kontsevich-Soibelman.

2013-08-09abs ↗pdf ↗