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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.

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48 results for integers

New q-deformed integers help compute Jones polynomials efficiently.

problem Computing Jones polynomials of rational links efficiently.
method Defining q-deformed integers from pairs of coprime integers and using them to compute Jones polynomials.
result Efficient algorithm for computing Jones polynomials of rational links.

Generalized Steinberg module presentation for Gaussian and Eisenstein integers.

problem Presenting Steinberg modules for specific number rings.
method Generalization of Bykovskii's presentation to Gaussian and Eisenstein integers.
result Generalization does not yield a presentation for all Euclidean number rings.

Surgery obstructions extended to integer homology spheres using Heegaard Floer homology.

problem Obstructing knots in integer homology spheres using surgery.
method Extending Heegaard Floer homology obstructions to all integer homology spheres for both positive and negative surgeries.
result Deduced a lower bound on b2(W)b_2(W) for smooth cobordism between integer homology spheres.

IDF++ improves integer discrete flows for lossless compression.

problem Theoretical limitations of integer discrete flows for lossless compression.
method Investigated and improved integer discrete flows, addressing gradient bias and architecture modifications.
result Different architecture modifications improve integer discrete flows for lossless compression.

We use Nathanson's gg-adic representation of integers to relate metric properties of Cayley graphs of the integers with respect to various infinite generating sets SS to problems in additive number theory. If SS consists of all powers of a fixed integer gg, we find explicit formulas for the smallest positive intege…

2017-11-02abs ↗pdf ↗

New method for probabilistic modeling of integer submodular functions.

problem Lack of probabilistic modeling for integer submodular functions.
method Proposed Generalized Multilinear Extension and block-coordinate ascent algorithm.
result Demonstrated effectiveness and viability on real-world datasets.

Neural networks with integer weights approximate continuous functions efficiently.

problem Approximating continuous functions using neural networks with integer weights.
method Integrates superexpressive activation functions and integer weights.
result Convergence rate of order n2β2β+dlog2nn^{\frac{-2β}{2β+d}}\log_2n for neural network regression.

The integer hull of a polyhedron is the convex hull of the integer points contained in it. We show that the vertices of the integer hulls of a rational family of polyhedra of size O(n) have quasipolynomial coordinates. As a corollary, we show that the stable commutator length of elements in a surgery family is a ratio …

2010-11-05abs ↗pdf ↗

The article calculates a multiplying factor to convert rational Vassiliev invariants to integer-valued ones.

problem Converting rational valued Vassiliev invariants to integer-valued ones.
method Calculates the minimal multiplying factor λ needed for rational Vassiliev invariants to become integer-valued.
result Obtains a set of integer-valued Vassiliev invariants.

Paper develops machine learning algorithms to learn optimal integer weights for clinical risk scores.

problem Deriving optimal integer weights for clinical risk scores without computational burden.
method Flexible greedy optimization strategy to directly optimize a value function.
result Constructed an integer-weighted comorbidity score for measuring post-discharge mortality risk.

New symplectic embedding obstructions found for polydisks into half-integer ellipsoids.

problem Obstructing symplectic embeddings of polydisks into half-integer ellipsoids.
method Combinatorial criterion developed by Hutchings to obstruct symplectic embeddings.
result Optimal inclusion conditions for symplectic embeddings of polydisks into half-integer ellipsoids.

Proves surgery exact triangle for monopole Floer homology over integers.

problem Proving the surgery exact triangle for monopole Floer homology over integer coefficients.
method Modification of Kronheimer--Mrowka's local system and adaptation of Freeman's computation.
result Obtains a spectral sequence over integer coefficients for an oriented link in S3S^3.

The paper uses clustering and integer programming to optimize stock selection for investment funds.

problem Maximizing profits and minimizing risk in stock markets.
method Data-oriented analysis and clustering techniques with integer programming.
result Reconstructed NASDAQ 100 index fund example demonstrates effectiveness.

Optimizes intervention design for causal discovery using integer programming.

problem Identifying causal structures from observational data due to confounding variables.
method Uses integer programming to design minimal intervention sets for causal structure identifiability.
result Provides exact and modular solutions adaptable to various experimental settings and constraints.

This paper explores how many positive integer surgeries on a knot produce a manifold rational homology cobordant to a lens space.

problem How many positive integer surgeries on a knot produce a manifold rational homology cobordant to a lens space?
method Uses Greene and McCoy's changemaker lattices from Heegaard Floer d-invariants and Aceto-Celoria-Park's rational cobordisms and integral homology.
result For a given knot, there are at most two positive integer surgeries that produce a manifold rational homology cobordant to a lens space.

The study examines vector fields with integer singularities in 3D balls.

problem Characterizing the strong LpL^p-closure of vector fields with finitely many integer singularities.
method Characterization and decomposition of vector fields with finitely many integer singularities.
result Decomposition theorem for elements in LZ1(B)L_{\mathbb{Z}}^1(B), revealing information about mass-minimizing currents.

The study explores which sets of integers can be realized as the degrees of maps between manifolds.

problem Which sets of integers can be realized as the degrees of maps between manifolds?
method Analyzes the set of degrees of maps between closed oriented manifolds of the same dimension.
result Finite arithmetic progressions and geometric progressions starting from 1 can be realized as degrees of maps between manifolds.

This paper shows how to hedge financial risks with integer investments.

problem Evaluating the minimal super-hedging price with integer-valued strategies for arbitrary payoffs.
method Formulated a dynamic programming principle to evaluate the minimal super-hedging price with integer-valued strategies for continuous piecewise affine terminal claims.
result It is possible to evaluate the minimal super-hedging price with integer-valued strategies for discrete-time, arbitrary Ω.

In this paper we investigate discrete time trading under integer constraints, that is, we assume that the offered goods or shares are traded in integer quantities instead of the usual real quantity assumption. For finite probability spaces and rational asset prices this has little effect on the core of the theory of no…

2017-08-25abs ↗pdf ↗

MVRSM optimizes expensive functions with mixed variables, outperforming state-of-the-art methods.

problem Minimizing expensive functions with mixed continuous and integer variables.
method Mixed-Variable ReLU-based Surrogate Modelling (MVRSM) using rectified linear units.
result MVRSM outperforms state-of-the-art methods on synthetic and real-life benchmarks.

The study confirms conjectures about slopes of knots using knot Floer homology.

problem Verifying conjectures about non-integer characterizing slopes of knots.
method Using knot Floer homology, the study verifies conjectures for specific classes of knots.
result Almost all slopes are characterizing for many knots, and infinitely many for LL-space knots.

Paper analyzes coexisting hidden and self-excited attractors in an economic system.

problem Existence of coexisting hidden and self-excited attractors in economic systems.
method Integer and fractional order analysis of an economic system.
result Integer-order system exhibits multiple combinations of coexisting hidden and self-excited attractors.

Paper develops methods for estimating and forecasting integer-valued trawl processes.

problem Estimation and forecasting of continuous-time integer-valued trawl processes.
method Composite likelihood methods, focusing on pairwise likelihood.
result Consistency and asymptotic normality of the estimator in the short memory case.

Introduces integer-valued Heegaard Floer theory with canonical orientations.

problem Defining and proving properties of Heegaard Floer homology over integers.
method Using canonical orientations from coupled Spin structures, proving naturality and surgery exact triangle.
result Established integer-valued Heegaard Floer theory and proved its properties.

Study non-integer power-law potentials for Schrödinger operators using Lie-Rinehart algebras.

problem Analyzing Schrödinger operators with non-integer power-law potentials.
method Using Lie-Rinehart algebras and microlocal analysis.
result Microlocal analysis can be applied to Schrödinger operators with non-integer power-law potentials.