Expertini Research Research

Browse Research Papers

3,212+ open-access research outputs.

โœ• Clear
๐Ÿ” david budden ๐Ÿ“‚ Mathematics
Showing 3212 results for "david budden" in Mathematics
Mathematics Preprint PDF DOI

Extension of Excess Demand Ascending Auction to Multi-Demand Model by Discrete Convex Analysis Approach

Kazuo Murota, Akiyoshi Shioura ยท 2026

We consider the problem of finding the (unique) minimal Walrasian equilibrium price in multi-item, multi-unit auction models: there are multiple indivisible items for sale, with several units of each โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

A Shifted Cohesive-Zone Method for Non-Interface-Fitted Meshes with Applications to Crystal Plasticity

Cheng-Hau Yang, Mark C. Messner, Tianchen Hu ยท 2026

The accurate simulation of interface-dominated solid mechanics problems on complex microstructures remains challenging, particularly when interface-fitted quadrilateral or hexahedral meshes are difficโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

A colimit decomposition for the loop homology of polyhedral products

Lewis Stanton, Fedor Vylegzhanin ยท 2026

We show that the loop homology algebras of polyhedral products of the form $(\underline{X},\underline{*})^{\mathcal{K}}$ can be written as a colimit over the flagification of $\mathcal{K}$, and obtainโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Large flats in large subgraphs of fine curve graphs

Ryan Dickmann, Roberta Shapiro ยท 2026

The fine curve graph of a surface is a graph whose vertices are essential simple closed curves and whose edges connect disjoint curves. Following a rich history of hyperbolicity of various graphs assoโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Adaptive-Distribution Randomized Neural Networks for PDEs: A Low-Dimensional Distribution-Learning Framework

You Yang, Fei Wang ยท 2026

Randomized neural networks (RaNNs) are attractive for partial differential equations (PDEs) because they replace expensive end-to-end training with a linear least-squares solve over randomized hidden โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Sharp pathwise nonuniqueness for additive SDEs

Elias Hess-Childs, Keefer Rowan ยท 2026

We construct a family of velocity fields demonstrating the sharpness of the classical Zvonkin--Veretennikov--Davie strong well-posedness by noise regime. We consider stochastic differential equations โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Computational Method for Desensitized Optimal Guidance Using Direct Collocation

Katrina Winkler, Anil Rao ยท 2026

A computational method is developed for desensitized optimal guidance using adaptive Gaussian quadrature collocation. The method computes a reference trajectory that reduces the sensitivity to uncertaโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Remarks on infimum and maximal lower bounds of a set of bounded self-adjoint operators

Matthias Gunther, Lutz Klotz ยท 2026

The notions of infimum and maximal lower bounds of a set $\mathfrak M$ of bounded self-adjoint operators were mainly studied for a set $\mathfrak M$ of two elements. The present paper deals with more โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Global Convergence of Policy Gradient Methods for ReLU Controllers in Linear Quadratic Regulation

Jhojan A. Rodriguez-Gil, Cesar A. Uribe ยท 2026

We study the convergence of model-based policy gradient for the deterministic, scalar, discounted linear-quadratic regulator when the controller is an overparameterized one-hidden-layer ReLU network wโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Anti-Ramsey numbers for cancellative configurations in p-graphs

Cheng Chi, Long-tu Yuan ยท 2026

We study edge-colorings of the complete $p$-graph on $n$ vertices that contain no three edges $A,B,C$ of distinct colors such that the symmetric difference of $A$ and $B$ is contained in $C$. For $pโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Rigorous High-Order Hausdorff Dimension Estimation of Limit Sets of Continued Fraction Iterated Function Systems via B-Splines

Jacob Brown ยท 2026

We develop a method for the rigorous estimation of Hausdorff dimensions of limit sets produced by continued fraction iterated function systems. Our method is based on the approximation of a Perron-Froโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Incremental SVD Compression for Nonlinear Oldroyd Equations with General Memory Kernels

Gang Chen, Yangwen Zhang, Dujin Zuo ยท 2026

We study mixed finite element/Crank--Nicolson discretizations of a nonlinear Oldroyd problem with general nonsingular and weakly singular memory kernels. Direct evaluation of the history term requiresโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

The Steklov spectrum of convex polygonal domains II: investigating spectral determination

Emily B. Dryden, Carolyn Gordon, Javier Moreno, Julie Rowlett, Carlos Villegas-Blas ยท 2026

The extent to which the geometry of an object is determined by some associated spectral data is a longstanding problem. We investigate this problem in the context of the Steklov spectrum, focusing on โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Tropical low-rank approximation and application to optimal control of N-body systems

Marianne Akian, Stephane Gaubert, Shanqing Liu, Yang Qi ยท 2026

We study the approximation of the value function of deterministic optimal control problems with fixed initial state, motivated by \(N\)-body systems. In this setting, the action functional consists ofโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

An adaptive discretization algorithm for locally optimal experimental design with constraints

Jochen Schmid, Philipp Seufert, Jan Schwientek, Tobias Seidel, Karl-Heinz Kufer ยท 2026

We develop a novel iterative algorithm for locally optimal experimental design under constraints, like budget or performance constraints. It is an adaptive discretization algorithm. In every iterationโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Learning the Riccati solution operator for time-varying LQR via Deep Operator Networks

Jun Chen, Umberto Biccari, Junmin Wang ยท 2026

We propose a computational framework for replacing the repeated numerical solution of differential Riccati equations in finite-horizon Linear Quadratic Regulator (LQR) problems by a learned operator sโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Climate-Driven Dengue Forecasting in Bangladesh: Division-Specific Feature-Set Design and Lag Structure

Faizunnesa Khondaker, Md. Kamrujjaman ยท 2026

Bangladesh exhibits marked year-to-year variability in dengue, partly driven by meteorological fluctuations that shape \textit{Aedes} breeding-site persistence, mosquito development, and transmission.โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Extrapolation of max-stable random fields with Fr\'echet marginals

Vitalii Makogin, Evgeny Spodarev, Ilja Sukhanov ยท 2026

We propose a method for the prediction of stationary max--stable random fields with $\alpha$-Fr\'echet marginal distribution $H_\alpha$. The method is suitable to cope with heavy tails for $\alpha\in(โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Algebraic redshift in the $C_2$-equivariant Adams spectral sequence

Paul Shick ยท 2026

We study $v_n$-periodic phenomena in $C_2$-equivariant stable homotopy through the lens of the $C_2$-equivariant Adams spectral sequence at the prime 2. In particular, we construct/detect certain clasโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Efficient and well-conditioned ghost-point discretization of boundary operators on unfitted domains

Armando Coco, Alessandro Coclite, Stephane Clain, Rui Miguel Pereira ยท 2026

Unfitted boundary methods are widely used to numerically solve partial differential equations (PDEs) on irregular domains, avoiding the computational burden of generating boundary-conforming grids. Inโ€ฆ

Read Paper โ†’
Page 1 of 161 Next โ†’