Creative Puzzles to Ignite Your Mind
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Steps into Analytic Number Theory
Paul Pollack & Akash Singha Roy
Combinatorics
Pavle Mladenović
Selection Tests in Algebra for Mathematical Olympiads
Corneliu Mănescu-Avram
Mathematical Explorations for Young Minds
Bálint Hujter, Dániel Lenger & Gábor Szűcs
The Indiana College Mathematics Competition (2001–2023)
Adam Coffman, Justin Gash, Rick Gillman & John Rickert
Selection Tests in Number Theory for Mathematical Olympiads
Corneliu Mănescu-Avram
Functional Analysis and Operator Theory
Volodymyr Brayman, Andrii Chaikovskyi, Oleksii Konstantinov, Alexander Kukush, Yuliya Mishura & Oleksii Nesterenko
An Excursion Through Partial Differential Equations
Svetlin G. Georgiev
More (Almost) Impossible Integrals, Sums, and Series
Cornel Ioan Vălean