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Showing 28348 results for "theoretical" in Mathematics
Mathematics Preprint PDF DOI

Hallucination, Abstention, and Recursive Inseparability

Takuma Imamura ยท 2026

The impossibility of eliminating hallucination, understood here as incorrect definite answers, in sufficiently expressive yes-or-no formal domains is an immediate consequence of classical undecidabiliโ€ฆ

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Mathematics Preprint PDF DOI

Irreducible Ferrers diagrams in the Etzion-Silberstein conjecture

Hugo Beeloo-Sauerbier Couvee, Alessandro Neri ยท 2026

The Etzion-Silberstein conjecture asserts that, for any finite field $\mathbb F$, Ferrers diagram $\mathcal D$, and integer $d$, there exists a linear matrix code supported on $\mathcal D$ with minimuโ€ฆ

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Mathematics Preprint PDF DOI

M\"obius-transformed trapezoidal rule for polynomial weights

Nuutti Hyvonen, Yuya Suzuki ยท 2026

This work studies numerical integration by the M\"obius-transformed trapezoidal rule, which combines the classical trapezoidal rule with a change of variables induced by a M\"obius transformation thatโ€ฆ

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Mathematics Preprint PDF DOI

Harmonic Gauge on the Space of Riemannian Metrics and Its Role in the Ricci-DeTurck Flow

Stepanov Sergey ยท 2026

We develop a harmonic gauge on the space of Riemannian metrics and study its role in the variational and flow-theoretic structure of geometric analysis. We prove that the harmonic gauge eliminates divโ€ฆ

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Mathematics Preprint PDF DOI

Monodromy action of mirror stops for toric Calabi-Yau surfaces

Michela Barbieri, Andrew Hanlon, Jeff Hicks ยท 2026

Mirror symmetry predicts an action by the fundamental group of a conjectural stringy K\"ahler moduli space on the derived category of an algebraic variety. For a toric variety, a model for this space โ€ฆ

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Mathematics Preprint PDF DOI

Waveform Relaxation for Field/Circuit Coupled DAEs with Generalized Capacitances

Idoia Cortes Garcia, Jonas Pade ยท 2026

Field/circuit coupling is a common approach when a lumped representation of a certain electrotechnical device is not accurate enough. To exploit existing code and underlying properties of the coupled โ€ฆ

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Mathematics Preprint PDF DOI

Discontinuous Galerkin IMEX Pressure Correction Scheme for the Poisson-Nernst-Planck-Navier-Stokes Equations

Bikram Bir, Amiya K. Pani ยท 2026

Based on a discontinuous Galerkin method in the spatial directions and an improved implicit-explicit pressure-correction scheme in the temporal direction, this paper discusses a fully discrete scheme โ€ฆ

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Mathematics Preprint PDF DOI

The Bernstein-von Mises theorem for Bayesian one-pass online learning

Jeyong Lee, Junhyeok Choi, Dongguen Kim, Minwoo Chae ยท 2026

Bayesian online learning provides a coherent framework for sequential inference. However, its theoretical understanding remains limited, particularly in the one-pass setting. Existing theoretical guarโ€ฆ

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Mathematics Preprint PDF DOI

Flat coordinates of Frobenius prepotentials related with the reflection groups of types $H_3$ and $H_4$

Rei Aradachi, Hiromasa Nakayama, Jiro Sekiguchi ยท 2026

In this article, we first explain a group theoretic interpretation of the derivation of the relation between the flat coordinates of the polynomial prepotential $(H_3)$ and those of the algebraic prepโ€ฆ

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Mathematics Preprint PDF DOI

A Regularized Hessian-Free Inexact Newton-Type Method with Global $\mathcal{O}(k^{-2})$ Convergence

Leandro Farias Maia, Antonio Victor B. Nascimento, Paulo Sergio M. Santos, Gilson N. Silva ยท 2026

We propose a regularized Hessian-free Newton-type method for minimizing smooth convex functions with Lipschitz continuous Hessians. The algorithm constructs an approximate Hessian by finite differenceโ€ฆ

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Mathematics Preprint PDF DOI

Continuous-time q-learning for mean-field control with common noise, part-I: Theoretical foundations

Zhenjie Ren, Xiaoli Wei, Xiang Yu, Xun Yu Zhou ยท 2026

This paper investigates the continuous-time counterpart of the Q-function for entropy-regularized mean-field control (MFC) with controlled common noise, coined as q-function by Jia and Zhou (2023) in โ€ฆ

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Mathematics Preprint PDF DOI

Triangulation of Points Constrained to a Plane

Petr Hruby, Elima Shehu ยท 2026

We study the set of image tuples arising from fixed cameras observing varying planar 3-dimensional point configurations. We derive a formula for the number of complex critical points of the triangulatโ€ฆ

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Mathematics Preprint PDF DOI

Efficient Graph Partitioning under Resource Constraints: A Cutting-Plane Framework for Distribution Grids

Duong Thuy Anh Nguyen, Harsha Nagarajan, Robert Ferrando, Russell Bent, David Fobes ยท 2026

This paper presents an optimal network topology control framework using cutting-plane methods for efficient network partitioning with controllable edges. The objective is to enable real-time reconfiguโ€ฆ

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Mathematics Preprint PDF DOI

Polynomial and spectra factorization of graphs obtained by iteration the operad of generalized graph composition

Jean Liendo ยท 2026

The generalized composition graph is used by Cardoso and some researchers for factorization of the adjacency spectrum and Laplacian of a simple graph. Because the generalized composition graph is an eโ€ฆ

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Mathematics Preprint PDF DOI

Degree-dependent and distance-dependent contact rates interpolate between explosive, exponential and polynomial epidemic growth

Zylan Benjert, Julia Komjathy, Johannes Lengler, John Lapinskas, Ulysse Schaller ยท 2026

It is a fundamental question in epidemiology to estimate, model and predict the growth rate of a pandemic. Analogously, analysing the diffusion of innovation, (fake) news, memes, and rumours is of keyโ€ฆ

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Global boundedness and asymptotic behavior of the chemotaxis system for Alopecia Areata with weakly singular sensitivity

Pengxue Xiang, Yuebo Cao, Hongying Yang ยท 2026

This paper considers the homogeneous Neumann initial-boundary value problem for Alopecia Areata chemotaxis model with weakly singular sensitivity. For any appropriately regular initial conditions,it iโ€ฆ

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Mathematics Preprint PDF DOI

Data assimilation for slightly compressible flow

Aytekin C{i}b{i}k, Rui Fang ยท 2026

Continuous data assimilation (CDA) nudges observational data into governing equations to recover the underlying flow and improve predictions. Existing rigorous CDA analyses focus primarily on incompreโ€ฆ

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Mathematics Preprint PDF DOI

Quasar-Convex Optimization: Fundamental Properties and High-Order Proximal-Point Methods

Masoud Ahookhosh, Jose M.M. de Brito, Alireza Kabgani, Felipe Lara, Jinyun Yuan ยท 2026

We study the optimization of (strongly) quasar-convex functions, a class that arises naturally in many machine learning and data science applications due to its favorable properties. The fundamental pโ€ฆ

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Mathematics Preprint PDF DOI

Robust Design of Multi-Energy Systems Accounting for Mixed-Integer Operational Problems

Moritz Wedemeyer, Alexander Mitsos, Manuel Dahmen ยท 2026

Identifying robust designs for multi-energy systems is computationally challenging. As rigorous approaches are often computationally intractable, heuristics are employed to generate candidate designs.โ€ฆ

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Mathematics Preprint PDF DOI

On Arithmetic Mirror Symmetry for smooth Fano fourfolds

Mikhail Ovcharenko ยท 2026

We introduce an explicit class of tempered Laurent polynomials in the sense of Villegas and Doran--Kerr in $n \leqslant 4$ variables including all Landau--Ginzburg models for smooth Fano threefolds wiโ€ฆ

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