An introduction to Diophantine equations: a problem-based approach T Andreescu, D Andrica, I Cucurezeanu Birkhäuser, 2010 | 208 | 2010 |

Complex Numbers from A to... Z T Andreescu, D Andrica Birkhäuser Boston, 2006 | 192 | 2006 |

Grüss' inequality for positive linear functionals D Andrica, C Badea Periodica Mathematica Hungarica 19, 155-167, 1988 | 110 | 1988 |

Number theory: structures, examples, and problems D Andrica, T Andreescu Birkhäuser Boston, 2009 | 90 | 2009 |

104 number theory problems: From the training of the USA IMO team T Andreescu, D Andrica, Z Feng Birkhäuser, 2007 | 83 | 2007 |

Why Quadratic Diophantine Equations? T Andreescu, D Andrica, T Andreescu, D Andrica Quadratic Diophantine Equations, 1-8, 2015 | 53 | 2015 |

Note on a conjecture in prime number theory D Andrica Studia Univ. Babes-Bolyai Math 31 (4), 44-48, 1986 | 40 | 1986 |

360 Problems for Mathematical Contests T Andreescu, D Andrica Levant Books, 2014 | 37 | 2014 |

Recurrent sequences D Andrica, O Bagdasar Springer International, 2020 | 31 | 2020 |

A nil-clean 2× 2 matrix over the integers which is not clean D Andrica, G Călugăreanu Journal of Algebra and Its Applications 13 (06), 1450009, 2014 | 31 | 2014 |

Critical point theory and some applications D Andrica Cluj University Press, 2005 | 28 | 2005 |

A geometric proof of Blundon’s inequalities D Andrica, C Barbu Math. Inequal. Appl 15 (2), 361-370, 2012 | 24 | 2012 |

On smooth maps with finitely many critical points D Andrica, L Funar Journal of the London Mathematical Society 69 (3), 783-800, 2004 | 23 | 2004 |

On an integer sequence related to a product of trigonometric functions, and its combinatorial relevance D Andrica, I Tomescu Journal of Integer Sequences 5 (2), 3, 2002 | 21 | 2002 |

The Jensen inequality: refinements and applications D Andrica, I Raşa Mathematica-Revue d'analyse numérique et de théorie de l'approximation. L …, 1985 | 20 | 1985 |

A note on the Nagel and Gergonne points D Andrica, KL Nguyen Creative Math. & Inf 17, 127-136, 2008 | 19 | 2008 |

On Fibonacci and Lucas sequences modulo a prime and primality testing D Andrica, V Crişan, F Al-Thukair Arab Journal of Mathematical Sciences 24 (1), 9-15, 2018 | 14 | 2018 |

Some unexpected connections between Analysis and Combinatorics D Andrica, EJ Ionascu Mathematics Without Boundaries: Surveys in Pure Mathematics, 1-19, 2014 | 14 | 2014 |

A geometric way to generate Blundon type inequalities D Andrica, C Barbu, N Minculete arXiv preprint arXiv:1205.1145, 2012 | 13 | 2012 |

Proving some geometric inequalities by using complex numbers T Andreescu, D Andrica Mathematical Education 1 (2), 19-26, 2005 | 12 | 2005 |