| Copula Graphical Models for Heterogeneous Mixed Data Sjoerd Hermes, Joost van Heerwaarden, Pariya Behrouzi | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Cores for Piecewise-Deterministic Markov Processes used in Markov Chain Monte Carlo Peter Holderrieth | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Corporate Default Behavior: A Simple Stochastic Model Ting Lei, Raymond J. Hawkins | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Corpus-Based Word Sense Disambiguation Atsushi Fujii (University of Library, Information Science) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| CoRR: A Computing Research Repository Joseph Y. Halpern | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Correctional Systems and Practices Lisa C. Bowman-Bowen | L1–3 Foundational | CC-BY-NC-SA | mirrored | 161 pp. | libretexts |
| Correlation-Based And-Operations Can Be Copulas: A Proof Enrique Miralles-Dolz, Ander Gray, Edoardo Patelli | L4–5 Advanced | CC-BY | mirrored | 19 pp. | arxiv |
| Correlation over Decomposed Signals: A Non-Linear Approach to Fast and Effective Sequences Comparison Luciano da Fontoura Costa | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Correlations in the Bond-Future Market Gianaurelio Cuniberti (1), Marco Raberto (2), Enrico Scalas (3) ((1) Max-Planck-Institut fuer Physik komplexer Systeme | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Correlation Structure and Fat Tails in Finance: a New Mechanism Marco Airoldi (Risk Management & Research, Intesa-Bci Bank) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Correlation structure of extreme stock returns Pierre Cizeau (1), Marc Potters (1), Jean-Philippe Bouchaud (1 | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Correspondences in log Hodge cohomology Charles Godfrey | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Corrupted by Algorithms? How AI-generated and Human-written Advice Shape (Dis)honesty Margarita Leib, Nils K\"obis, Rainer Michael Rilke | L4–5 Advanced | CC-BY | mirrored | 88 pp. | arxiv |
| Cosection localization and the Quot scheme $\mathrm{Quot}^{l}_{S}(\mathcal{E})$ Samuel Stark | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Cosmic crystallography: the euclidean isometries A. Bernui, A.F.F. Teixeira | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Cosmic Topology: a Brief Overview M.J. Reboucas, G.I. Gomero | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Cosmology with a shock wave Joel Smoller, Blake Temple | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Cost-volume relationships for flows through a disordered network David Aldous | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Could short selling make financial markets tumble? Jorgen Vitting Andersen | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Coulomb-like Model for International Trade Flow and Derivation of Distribution Function for Trade Flow Strength Mikrajuddin Abdullah | L4–5 Advanced | CC-BY | mirrored | 28 pp. | arxiv |
| Counterexamples to a Conjecture of Dombi in Additive Number Theory Jason P. Bell, Jeffrey Shallit | L4–5 Advanced | CC-BY | mirrored | 8 pp. | arxiv |
| Coupled Contact Systems and Rigidity of Maximal Dimensional Variations of Hodge Structure Richard Mayer | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Covariance loss, Szemeredi regularity, and differential privacy March Boedihardjo, Thomas Strohmer, Roman Vershynin | L4–5 Advanced | CC-BY | mirrored | 10 pp. | arxiv |
| coVariance Neural Networks Saurabh Sihag, Gonzalo Mateos, Corey McMillan | L4–5 Advanced | CC-BY | mirrored | 24 pp. | arxiv |
| Covariant Geometric Prequantization of Fields I.V. Kanatchikov | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Covariate-guided Bayesian mixture model for multivariate time series Haoyi Fu, Lu Tang, Ori Rosen | L4–5 Advanced | CC0-1.0 | mirrored | 29 pp. | arxiv |
| Covering Symmetric Sets of the Boolean Cube by Affine Hyperplanes S. Venkitesh | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Covid-19 Analysis Using Tensor Methods Dipak Dulal, Ramin Goudarzi Karim, Carmeliza Navasca | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| COVID-19 and Digital Resilience: Evidence from Uber Eats Manav Raj, Arun Sundararajan, Calum You | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| COVID-19 Impact on Global Maritime Mobility Leonardo M. Millefiori, Paolo Braca, Dimitris Zissis | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| C++ programming language for an abstract massively parallel SIMD architecture Alessandro Lonardo, Emanuele Panizzi, Benedetto Proietti | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| CPSI10003 Getting Started with Computers and Microsoft Office LueCrecy Ragan | L1–3 Foundational | CC-BY-NC-SA | mirrored | 229 pp. | libretexts |
| CPSI10003 Microcomputer Applications 1 - Microsoft Access LueCrecy Ragan | L1–3 Foundational | CC-BY-NC-SA | mirrored | 166 pp. | libretexts |
| CPSI10003 Microcomputer Applications 1 - Microsoft Excel LueCrecy Ragan | L1–3 Foundational | CC-BY-NC-SA | mirrored | 246 pp. | libretexts |
| CPSI10003 Microcomputer Applications 1 - Part 2: Microsoft Word LueCrecy Ragan | L1–3 Foundational | CC-BY-NC-SA | mirrored | 218 pp. | libretexts |
| CPSI10003 Microcomputer Applications 1 - Part 4: Microsoft PowerPoint LueCrecy Ragan & Michael Hostetler | L1–3 Foundational | CC-BY-NC-SA | mirrored | 149 pp. | libretexts |
| Creating and controlling band gaps in periodic media with small resonators Andrii Khrabustovskyi, Evgen Khruslov | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Creating Disasters: Recession Forecasting with GAN-Generated Synthetic Time Series Data Sam Dannels | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Creative Clinical Teaching in the Health Professions Melrose, Park, & Perry | L1–3 Foundational | CC-BY-NC-SA | link only | — | libretexts |
| Credit risk - A structural model with jumps and correlations Rudi Sch\"afer, Markus Sj\"olin, Andreas Sundin | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Criminal Court Processes and Procedures Tabitha Raber | L1–3 Foundational | CC-BY | mirrored | 218 pp. | libretexts |
| Crises and Political Polarization: Towards a Better Understanding of the Timing and Impact of Shocks and Media Guglielmo Briscese, Maddalena Grignani, Stephen Stapleton | L4–5 Advanced | CC-BY | mirrored | 104 pp. | arxiv |
| Critical Crashes Anders Johansen (IGPP, UCLA), Didier Sornette (CNRS-University of Nice | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Critical exponents of plane meanders Iwan Jensen, Anthony J Guttmann | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Critical Infrastructure Cybersecurity CyberWatch West | L1–3 Foundational | CC-BY | mirrored | 106 pp. | libretexts |
| Critical Ising Model and Financial Market Takeshi Inagaki | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Criticality Characteristics of Current Oil Price Dynamics Stanislaw Drozdz, Jaroslaw Kwapien, Pawel Oswiecimka | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Cross-correlations in Warsaw Stock Exchange R.Rak, J.Kwapien, S.Drozdz | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Cross-Domain Shopping and Stock Trend Analysis Aditya Pandey, Haseeba Fathiya, Nivedita Patel | L4–5 Advanced | CC-BY | mirrored | 8 pp. | arxiv |
| Cross-institution text mining to uncover clinical associations: a case study relating social factors and code status in intensive care medicine Madhumita Sushil, Atul J. Butte, Ewoud Schuit | L4–5 Advanced | CC-BY | mirrored | 35 pp. | arxiv |