Hasil Pencarian  ::  Simpan CSV :: Kembali

"This book is an introductory graduate-level textbook on the theory of smooth manifolds. Its goal is to familiarize students with the tools they will need in order to use manifolds in mathematical or scientific research, smooth structures, tangent vectors and covectors, vector bundles, immersed and embedded submanifolds, tensors, differential forms, de Rham cohomology, vector fields, flows, foliations, Lie derivatives, Lie groups, Lie algebras, and more. The approach is as concrete as possible, with pictures and intuitive discussions of how one should think geometrically about the abstract concepts, while making full use of the powerful tools that modern mathematics has to offer.The book now introduces the two most important analytic tools, the rank theorem and the fundamental theorem on flows. A few new topics have been added, notably Sard’s theorem and transversality, a proof that infinitesimal Lie group actions generate global group actions, a more thorough study of first-order partial differential equations, a brief treatment of degree theory for smooth maps between compact manifolds, and an introduction to contact structures."

"This textbook explores the theory behind differentiable manifolds and investigates various physics applications along the way. Basic concepts, such as differentiable manifolds, differentiable mappings, tangent vectors, vector fields, and differential forms, are briefly introduced in the first three chapters. Chapter 4 gives a concise introduction to differential geometry needed in subsequent chapters. Chapters 5 and 6 provide interesting applications to connections and Riemannian manifolds. Lie groups and Hamiltonian mechanics are closely examined in the last two chapters. "

"The aim of this monograph is to present a self-contained introduction to some geometric and analytic aspects of the Yamabe problem. The book also describes a wide range of methods and techniques that can be successfully applied to nonlinear differential equations in particularly challenging situations. Such situations occur where the lack of compactness, symmetry and homogeneity prevents the use of more standard tools typically used in compact situations or for the Euclidean setting. After a self-contained treatment of the geometric tools used in the book, readers are introduced to the main subject by means of a concise but clear study of some aspects of the Yamabe problem on compact manifolds. This study provides the motivation and geometrical feeling for the subsequent part of the work. In the main body of the book, it is shown how the geometry and the analysis of nonlinear partial differential equations blend together to give up-to-date results on existence, nonexistence, uniqueness and a priori estimates for solutions of general Yamabe-type equations and inequalities on complete, non-compact Riemannian manifolds."

"Salah satu masalah dasar dalam topologi adalah menentukan apakah dua ruang topologi saling homeomorfik atau tidak. Secara intuisi dua ruang dikatakan homeomorfik jika ruang yang satu dapat diubah menjadi ruang yang lain tanpa dipotong atau ditempel, sedangkan secara matematis adalah dengan menunjukkan terdapat homeomorfisma antara keduanya. Untuk menunjukkan dua ruang tidak homeomorfik dilakukan dengan menunjukkan terdapat sifat topologi yang berlaku pada satu ruang tapi tak berlaku pada ruang lainnya. Kulit bola, torus, bidang proyeksi dan figure eight adalah ruang-ruang topologi yang jika dilihat dari bentuknya dapat dikatakan tidak homeomorfik tetapi secara matematis sulit untuk menunjukkan ruang-ruang ini tidak homeomorfik karena keempat ruang ini mempuyai banyak sekali sifat topologi yang sama. Karena itu akan digunakan perbedaan sifat grup fundamental dari masing masing ruang untuk menunjukan bahwa keempat ruang ini tidak homeomorfik, jika grup fundamental dari kulit bola, torus, bidang proyeksi dan figure eight tidak isomorfik, maka keempat ruang tersebut tidak homeomorfik. Akan dicari sifat grup fundamental dari masingmasing ruang, kemudian akan ditunjukkan bahwa sifat grup fundamental dari masing-masing ruang tersebut tidak isomorfik."