| Hierarchical Deep Reinforcement Learning for VWAP Strategy Optimization Xiaodong Li, Pangjing Wu, Chenxin Zou | L4–5 Advanced | CC-BY-NC-ND | mirrored | 11 pp. | arxiv |
| Hierarchical Non-Emitting Markov Models Eric Sven Ristad, Robert G. Thomas | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| High Dimensional Analysis of Variance in Multivariate Linear Regression Zhipeng Lou, Xianyang Zhang, Wei Biao Wu | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Higher analytic torsion and cohomology of diffeomorphism groups U. Bunke | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Higher dimensional topology and generalized Hopf bifurcations for discrete dynamical systems H\'ector Barge, Jos\'e M.R. Sanjurjo | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| High-frequency Cross-correlation in a Set of Stocks Giovanni Bonanno, Fabrizio Lillo, Rosario N. Mantegna | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| High temperature expansion of emptiness formation probability for isotropic Heisenberg chain Zengo Tsuboi, Masahiro Shiroishi | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Hiking the hypercube: producers and consumers Tanya Ara\'ujo, G\'erard Weisbuch | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Hilbert norms for graded algebras Joachim Kupsch, Oleg G. Smolyanov | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Hinged Kite Mirror Dissection David Eppstein | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Hints for an extension of the early exercise premium formula for American options Hans-Peter Bermin, Arturo Kohatsu-Higa, Josep Perello | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Hints towards the formation of a more comprehensive theory of life | L2–5 Introductory | Public domain | mirrored | 104 pp. | wikisource |
| hIPPYlib-MUQ: A Bayesian Inference Software Framework for Integration of Data with Complex Predictive Models under Uncertainty Ki-Tae Kim, Umberto Villa, Matthew Parno | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Historical essay on the art of bookbinding | L2–5 Introductory | Public domain | mirrored | 39 pp. | wikisource |
| Historical Patterns and Recent Impacts of Chinese Investors in United States Real Estate Kevin Sun | L4–5 Advanced | CC-BY | mirrored | 24 pp. | arxiv |
| Historic wandering domains near cycles Pablo G. Barrientos | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| HKIN 110: Human Anatomy I for Kinesiology Colin Wallace | L1–3 Foundational | CC-BY-NC-SA | mirrored | 360 pp. | libretexts |
| Hodge Numbers of Arbitrary Sections from Linear Sections Herbert Clemens | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Holder estimates for kinetic Fokker-Planck equations up to the boundary Luis Silvestre | L4–5 Advanced | CC-BY | mirrored | 29 pp. | arxiv |
| Home-Made Toys for Girls and Boys | L2–5 Introductory | Public domain | mirrored | 243 pp. | wikisource |
| Homogeneous fractional integral operators on Lebesgue and Morrey spaces, Hardy--Littlewood--Sobolev and Olsen-type inequalities Kaikai Yang, Hua Wang | L4–5 Advanced | CC-BY | mirrored | 29 pp. | arxiv |
| Homological infiniteness of Torelli groups Toshiyuki Akita | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| Homotopical selection principles in bitopological dynamical systems Santanu Acharjee, Kabindra Goswami, Hemanta Kumar Sarmah | L4–5 Advanced | CC-BY | mirrored | 15 pp. | arxiv |
| Honest calibration assessment for binary outcome predictions Timo Dimitriadis, Lutz Duembgen, Alexander Henzi | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Hopf monoids in perturbative algebraic quantum field theory William Norledge | L4–5 Advanced | CC-BY | mirrored | 39 pp. | arxiv |
| Horizons and Geodesics of Black Ellipsoids with Anholonomic Conformal Symmetries Sergiu Vacaru, D. E. Goksel | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| How and What to Grow in a Kitchen Garden of One Acre (10th Ed) | L2–5 Introductory | Public domain | mirrored | 238 pp. | wikisource |
| How close are the option pricing formulas of Bachelier and Black-Merton-Scholes? Walter Schachermayer, Josef Teichmann | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| How contagion and infection are spread, through the sweating system in the tailoring trade | L2–5 Introductory | Public domain | mirrored | 22 pp. | wikisource |
| How Does Sharpness-Aware Minimization Minimize Sharpness? Kaiyue Wen, Tengyu Ma, Zhiyuan Li | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| How do noise tails impact on deep ReLU networks? Jianqing Fan, Yihong Gu, Wen-Xin Zhou | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| How effective are covid-19 vaccine health messages in reducing vaccine skepticism? Heterogeneity in messages effectiveness by just world beliefs Juliane Wiese, Nattavudh Powdthavee | L4–5 Advanced | CC-BY | mirrored | 44 pp. | arxiv |
| How exporters neutralized an increase in tariffs Asier Minondo | L4–5 Advanced | CC-BY | mirrored | 33 pp. | arxiv |
| How far apart can the projection of the centroid of a convex body and the centroid of its projection be? Sergii Myroshnychenko, Kateryna Tatarko, Vladyslav Yaskin | L4–5 Advanced | CC-BY-NC-SA | mirrored | 13 pp. | arxiv |
| How markets slowly digest changes in supply and demand Jean-Philippe Bouchaud, J. Doyne Farmer, Fabrizio Lillo | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| How the trading activity scales with the company sizes in the FTSE 100 Gilles Zumbach | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| How to account for virtual arbitrage in the standard derivative pricing Kirill Ilinski | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| How to Evaluate your Question Answering System Every Day and Still Get Real Work Done Eric Breck (1), John D. Burger (1), Lisa Ferro (1) | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| How to get the most out of Twinned Regression Methods Sebastian J. Wetzel | L4–5 Advanced | CC-BY | mirrored | 22 pp. | arxiv |
| How to reconcile Market Efficiency and Technical Analysis Alexandra Ilinskaia, Kirill Ilinski | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| How to Share: Balancing Layer and Chain Sharing in Industrial Microservice Deployment Yuxiang Liu, Bo Yang, Yu Wu | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| How Traders enter the Market through the Book Lorenzo Matassini, Fabio Franci | L4–5 Advanced | Licence unknown | link only | — | arxiv |
| HT-MMIOW: A Hypothesis Test approach for Microbiome Mediation using Inverse Odds Weighting Yuka Moroishi, Zhigang Li, Juliette C. Madan | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| H-type foliations Fabrice Baudoin, Erlend Grong, Gianmarco Vega-Molino | L4–5 Advanced | arxiv-nonexclusive | link only | — | arxiv |
| Human Aging: Biological Perspectives Augustine G. DiGiovanna | L1–3 Foundational | CC-BY-NC-SA | link only | — | libretexts |
| Human Anatomy Whitney Menefee, Julie Jenks, Chiara Mazzasette | L1–3 Foundational | CC-BY | link only | — | libretexts |
| Human Anatomy and Physiology Preparatory Course Liachovitzky | L1–3 Foundational | CC-BY-NC-SA | mirrored | 76 pp. | libretexts |
| Human Anatomy Lab Manual Wilk-Blaszczak | L1–3 Foundational | CC-BY | link only | — | libretexts |
| Human Anatomy Laboratory Manual Lumen Learning | L1–3 Foundational | CC-BY-NC-SA | mirrored | 403 pp. | libretexts |
| Human Nutrition The University of Hawaiʻi | L1–3 Foundational | CC-BY-NC-SA | mirrored | 499 pp. | libretexts |