| Applying Explanation-based Learning to Control and Speeding-up Natural Language Generation Guenter Neumann | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Applying Machine Translation to Two-Stage Cross-Language Information Retrieval Atsushi Fujii, Tetsuya Ishikawa | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Applying Maxi-adjustment to Adaptive Information Filtering Agents Raymond Lau (1), Arthur H.M. ter Hofstede (1), Peter D. Bruza (2) ((1) Queensland University of Technology | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Applying System Combination to Base Noun Phrase Identification Erik F. Tjong Kim Sang, Walter Daelemans, Herve Dejean | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Applying the q-algebras U'_q(so_n) to quantum gravity: towards q-deformed analog of SO(n) spin networks A.M. Gavrilik (BITP, Kiev) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Approaches to Network Classification Vladimir Gudkov, Joseph E. Johnson, Shmuel Nussinov | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Approximate Isomorphism of Metric Structures James Hanson | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Approximate Variational Estimation for a Model of Network Formation Angelo Mele, Lingjiong Zhu | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Approximating Context-Free Grammars with a Finite-State Calculus Edmund Grimley-Evans | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Approximation and Exactness in Finite State Optimality Theory Dale Gerdemann, Gertjan van Noord | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Approximation of dynamical systems using S-systems theory : application to biological systems Laurent Tournier (LMC - IMAG) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Approximation of Functionals by Neural Network without Curse of Dimensionality Yahong Yang, Yang Xiang | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Approximation probabilities, the law of quasistable markets, and phase transitions from the "condensed" state V. P. Maslov (Moscow, Russia) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Approximations of multi-period liability values by simple formulas Nils Engler, Filip Lindskog | L4–5 Advanced | CC-BY | mirrored | 21 pp. | arxiv |
| A Predictor-Informed Multi-Subject Bayesian Approach for Dynamic Functional Connectivity Jaylen Lee, Sana Hussain, Ryan Warnick | L4–5 Advanced | CC-BY | mirrored | 29 pp. | arxiv |
| A Problem in Modern Ethics | L2–5 Introductory | Public domain | mirrored | 141 pp. | wikisource |
| A Problem-Specific Fault-Tolerance Mechanism for Asynchronous, Distributed Systems Adriana Iamnitchi, Ian Foster | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A process-reconstruction analysis of market fluctuations R. Vilela Mendes, R. Lima, T. Araujo | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Projection Architecture for Dependency Grammar and How it Compares to LFG Norbert Broeker (IMS, Stuttgart University) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A projection-based reduced-order model for parametric quasi-static nonlinear mechanics using an open-source industrial code Eki Agouzal, Jean-Philippe Argaud, Michel Bergmann | L4–5 Advanced | CC-BY-NC-SA | mirrored | 28 pp. | arxiv |
| A proof of Alon's second eigenvalue conjecture and related problems Joel Friedman | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Public-key based Information Management Model for Mobile Agents Diego Rodriguez (University of Oviedo), Igor Sobrado (University of Oviedo) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| APUS: An Introduction to Nutrition Byerley | L1–3 Foundational | CC-BY-NC-SA-3.0 | mirrored | 1,136 pp. | libretexts |
| APUS: An Introduction to Nutrition 2nd Edition Byerley | L1–3 Foundational | CC-BY-NC-SA-3.0 | mirrored | 575 pp. | libretexts |
| APUS: An Introduction to Nutrition Version 1 Byerley | L1–3 Foundational | CC-BY-NC-SA | link only | — | libretexts |
| APUS: Basic Foundation of Nutrition for Sports Performance (Byerley) | L1–3 Foundational | Licence unknown | link only | 474 pp. | libretexts |
| A q-binomial extension of the CRR asset pricing model Jean-Christophe Breton, Youssef El-Khatib, Jun Fan | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| A quantification of how much crypto-miners are driving up the wholesale cost of energy in Texas Jangho Lee, Lily Wu, Andrew E. Dessler | L4–5 Advanced | CC-BY | mirrored | 11 pp. | arxiv |
| A Quantum Bayes' Rule and Related Inference Huayu Liu | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| A Quantum Field Theory Term Structure Model Applied to Hedging Belal E. Baaquie, Marakani Srikant, Mitch Warachka | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Quantum-Inspired Binary Optimization Algorithm for Representative Selection Anna G. Hughes, Jack S. Baker, Santosh Kumar Radha | L4–5 Advanced | CC-BY | mirrored | 11 pp. | arxiv |
| Arazy-Cwikel and Calder\'on-Mityagin type properties of the couples $(\ell^{p},\ell^{q})$, $0 \le p<q\le\infty$ Sergey V. Astashkin, Michael Cwikel, Per G. Nilsson | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| ARCH and GARCH Models vs. Martingale Volatility of Finance Market Returns Joseph L. McCauley | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Are all highly liquid securities within the same class? Silvio M. Duarte Queiros | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Real-Time Novelty Detector for a Mobile Robot Stephen Marsland, Ulrich Nehmzow, Jonathan Shapiro | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Real World Implementation of Answer Extraction D. Molla, J. Berri, M. Hess | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Are consumers ready to pay extra for crowd-shipping e-groceries and why? A hybrid choice analysis for developing economies Oleksandr Rossolov, Yusak O. Susilo | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| A reduced transfer equation in one-dimensional spherical geometry with central symmetry Charles H Aboughantous | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A remark on the Lagrangian formulation of optimal transport with a non-convex cost Toshio Mikami, Haruka Yamamoto | L4–5 Advanced | CC-BY-NC-ND | mirrored | 18 pp. | arxiv |
| A Resolution Calculus for Dynamic Semantics Christof Monz, Maarten de Rijke | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A response to the commentaries on CoRR Joseph Y. Halpern | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Are the contemporary financial fluctuations sooner converging to normal? S. Drozdz, J. Kwapien, F. Gruemmer | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Are volatility estimators robust with respect to modeling assumptions? Yingying Li, Per A. Mykland | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Risk-Sensitive Portfolio Optimization Problem with Fixed Incomes Securities Mayank Goel, K. Suresh Kumar | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Robust, Multiple Control Barrier Function Framework for Input Constrained Systems Wenceslao Shaw Cortez, Xiao Tan, Dimos V. Dimarogonas | L4–5 Advanced | CC-BY-NC-ND | mirrored | 6 pp. | arxiv |
| A Rohlin Type Theorem for Automorphisms of Certain Purely Infinite $C^{\ast}$-Algebras Hideki Nakamura (Hokkaido University) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Arthur Schopenhauer, his Life and Philosophy | L2–5 Introductory | Public domain | mirrored | 120 pp. | wikisource |
| Art of swimming rendered easy | L2–5 Introductory | Public domain | mirrored | 23 pp. | wikisource |
| A self consistent solution to the Einstein Maxwell Dirac Equations D. Ranganathan | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| A Sequential Test for Log-Concavity Aditya Gangrade, Alessandro Rinaldo, Aaditya Ramdas | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |