Expertini Research Research

Browse Research Papers

3,657+ open-access research outputs.

✕ Clear
🔍 michael lambert
Showing 3657 results for "michael lambert"
Mathematics Preprint PDF DOI

A Scale-Shape Dual Newton Method for Entropic Least Squares

Nicholas Barnfield, James V. Burke, Michael P. Friedlander, Tim Hoheisel · 2026

We give a damped inexact Newton method for entropy-regularized least-squares on the nonnegative orthant that converges globally at a linear rate with $O(\log\epsilon^{-1})$ iteration complexity, local…

Read Paper →
Mathematics Preprint PDF DOI

Non-symmetrically $t$-affine functions revisited

Tibor Kiss, Dora Koroknai · 2026

In 2014, Michal Lewicki and Andrzej Olbry\'s proved that if a real valued function $f$ defined on the real line satisfies the conditional functional equation \[ f(tx + (1-t)y) = t f(x) + (1-t) f(y),\q…

Read Paper →
Mathematics Preprint PDF DOI

Counterexamples to an Extremal Conjecture for Random Cycle-Factors

Rishikesh Gajjala · 2026

Christoph, Dragani\'{c}, Gir\~{a}o, Hurley, Michel, and M\"{u}yesser conjectured that, when $d\mid n$, the expected number of cycles in a uniformly random cycle-factor of a directed $d$-regular graph …

Read Paper →
Computer Science Preprint PDF DOI

Slice Agent: Identifying and Isolating Slices in Shared Open Radio Unit

Felipe Arnholda, Flavio Rocha, Lucio Prade, Cristiano Bonato Both · 2026

Network Slice as a Service (NSaaS) is a key enabler of Beyond Fifth Generation (5G) and Sixth Generation (6G) networks, supporting next-generation applications such as extended reality (XR), immersive…

Read Paper →
Mathematics Preprint PDF DOI

Linear recurrences and rational Lambert series

Igor Rivin · 2026

For a sequence $\gamma=(\gamma_n)_{n\ge 1}$, define \[ L_\gamma(z):=\sum_{n\ge 1}\gamma_n\frac{z^n}{1-z^n} =\sum_{n\ge 1}\Bigl(\sum_{d\mid n}\gamma_d\Bigr)z^n. \] We prove a short rigidity theorem: if…

Read Paper →
Mathematics Preprint PDF DOI

Lusztig constants and endoscopy

Wille Liu, Wei-Hsuan Hsin, Cheng-Chiang Tsai · 2026

We prove that on a semisimple Lie algebra $\mathfrak{g}$ over a finite field of large characteristic, if a complex-valued invariant function $f$ and its Fourier transform $\hat f$ are both supported i…

Read Paper →
AI & Data Science Preprint PDF DOI

Machine learning and emoji prediction: How much accuracy can MARBERT achieve?

Mohammed Q. Shormani, Ibrahim Abdulmalik Hassan Muneef Y. Alshawsh · 2026

This study investigates Machine Learning (ML) in the prediction of emojis in Arabic tweets employing the (state-of-the-art) MARBERT model. A corpus of 11379 CA tweets representing multiple Arabic coll…

Read Paper →
Mathematics Preprint PDF DOI

The Mihail-Vazirani conjecture and strong edge-expansion in random $0/1$ polytopes

Micha Christoph, Sahar Diskin, Lyuben Lichev, Benny Sudakov · 2026

We study the edge-expansion of the graph of a random $0/1$ polytope $P^d_p$, defined as the convex hull of a random subset of the points in $\{0,1\}^d$ where every point is retained independently and …

Read Paper →
Physics Preprint PDF DOI

Nonlinear Programming of Low-Thrust Multi-Rendezvous Trajectories Using Analytical Hessian

An-Yi Huang, Ya-Zhong Luo · 2026

This study presents a fast nonlinear programming algorithm for low-thrust multi-asteroid rendezvous missions. The core contribution is the derivation of analytical formulations for both first- and sec…

Read Paper →
AI & Data Science Preprint PDF DOI

And Quiet Does Not Flow the Don: Statistical Analysis of a Quarrel Between Nobel Prize Laureates

Nils Lid Hjort · 2026

The Nobel Prize in literature 1965 was awarded Mikhail Sholokhov (1905-1984), for the epic novel Tikhij Don about Cossack life and the birth of a new Soviet society (And Quiet Flows the Don, or The Qu…

Read Paper →
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 · 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 …

Read Paper →
Engineering Preprint PDF DOI

A Novel Piecewise Atmospheric Attenuation Model for Free Space Optical Links in Vertical Heterogeneous Networks

Eylem Erdogan, Mohammed Elamassie, Ibrahim Altunbas, Gunes Karabulut Kurt, Murat Uysal, Halim Yanikomeroglu · 2026

Free-space optical (FSO) communication is emerging as a key backhaul technology for next-generation vertical heterogeneous networks (VHetNets), whose architecture spans satellites, high-altitude platf…

Read Paper →
Mathematics Preprint PDF DOI

Mathematical modeling of biochemical signal propagation in many-stage enzymatic pathways

Chathranee Jayathilaka, Mark B. Flegg · 2026

Biochemical signalling cascades transduce extracellular stimuli into cellular responses through sequences of discrete, node-to-node activations. While signal fidelity depends critically on local inter…

Read Paper →
Physics Preprint PDF DOI

Dilaton-Flattened Axion Inflation

Pirzada, Ali Muhammad, Tianjun Li, Imtiaz Khan, Mussawir Khan · 2026

We present a solvable same-sector effective theory for anomaly-inspired axion inflation, in which a heavy trace-anomaly mode dynamically backreacts on the axion potential. The tree-level elimination o…

Read Paper →
Physics Preprint PDF DOI

Optimal Quantum Logarithmic Trace Inequality

Gilad Gour · 2026

We establish a sharp logarithmic trace inequality that strengthens recent bounds of Cheng et al.(arXiv:2507.07961) by replacing their prefactor $c_s/s$ with the strictly smaller constant $G_s$. The co…

Read Paper →
AI & Data Science Preprint PDF DOI

Tight Sample Complexity Bounds for Best-Arm Identification Under Bounded Systematic Bias

Tianhao Qian · 2026

As search depth increases in autonomous reasoning and embodied planning, the candidate action space expands exponentially, heavily taxing computational budgets. While heuristic pruning is a common cou…

Read Paper →
Physics Preprint PDF DOI

Hybrid Renormalization for Baryon Distribution Amplitudes from Lattice QCD in LaMET

Mu-Hua Zhang · 2026

In our recent work [1] on lattice QCD calculation of the baryon leading-twist LCDAs within the framework of LaMET, a novel hybrid renormalization scheme is implemented for octet baryon quasi-DAs, yiel…

Read Paper →
Physics Preprint PDF DOI

Confined kinetics and heterogeneous diffusion driven by fractional Gaussian noise: A path integral approach

David Santiago Quevedo, Felipe Segundo Abril-Bermudez, Cristiane Morais Smith · 2026

Many complex systems are described by Langevin-type equations in which the noise exhibits long-range correlations and couples to the system in a state-dependent, multiplicative manner, leading to hete…

Read Paper →
Chemistry Preprint PDF DOI

CovAngelo: A hybrid quantum-classical computing platform for accurate and scalable drug discovery

Linn Evenseth, Kamil Galewski, Witold Jarnicki, Piero Lafiosca, Vyom N. Patel, Grzegorz Rajchel-Mieldzioc, Martin Simka, Micha{l} Szczepanik, Emil Zak · 2026

We present a computational platform for modeling chemical reactions in complex molecular environments, focused on ligand-protein binding in drug discovery. The platform implements our new quantum-in-q…

Read Paper →
AI & Data Science Preprint PDF DOI

NameBERT: Scaling Name-Based Nationality Classification with LLM-Augmented Open Academic Data

Cong Ming, Ruixin Shi, Yifan Hu · 2026

Inferring nationality from personal names is a critical capability for equity and bias monitoring, personalization, and a valuable tool in biomedical and sociological research. However, existing name-…

Read Paper →
Page 1 of 183 Next →