This classic graduate-level text provides a rigorous and systematic introduction to the core structures of algebraic number theory. It covers foundational topics like the theory of ideals and units before moving into advanced areas such as ideles, adeles, and class field theory. Lang’s efficient style bridges the gap between basic algebra and modern research, making it a cornerstone resource …
محتوى الكتاب 1. المقدمة يوضح أهمية المعاجم في حفظ اللغة العربية. يبرز دور الخليل بن أحمد في تأسيس علم المعاجم. 2. المرحلة الأولى: مرحلة التقليبات منهج الخليل في معجم العين: اعتمد على ترتيب الحروف وفق مخارجها الصوتية،…
Originally translated from Polish, this classic textbook by world-renowned mathematician Kazimierz Kuratowski offers a rigorous and elegant introduction to the calculus of functions of one real variable. The text is highly regarded for its logical precision, starting with a meticulous treatment of sequences and series before progressing to differential and integral calculus. Unique features inc…
الميلاد والوفاة: ولد في بغداد عام 1904 وتوفي عام 1969. التعليم: درس في بغداد والقاهرة، ثم أكمل دراسته في جامعة السوربون بباريس. المناصب: عمل أستاذًا في دار المعلمين العالية، وكان عضوًا في مجمع اللغة العربية بدمشق وبغداد. …
Written by a professor at the U.S. Naval Academy, this classic textbook provides a clear, step-by-step introduction to the theory and application of ordinary differential equations. It is designed for students with a basic background in calculus, focusing on practical methods for solving first and second-order equations, linear equations with constant coefficients, and integration in series. Th…