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Introduction to Tensor Analysis and the Calculus of Moving Surfaces

Pavel Grinfeld · 2 HN points · 1 HN comments
HN Books has aggregated all Hacker News stories and comments that mention "Introduction to Tensor Analysis and the Calculus of Moving Surfaces" by Pavel Grinfeld.
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Amazon Summary
This textbook is distinguished from other texts on the subject by the depth of the presentation and the discussion of the calculus of moving surfaces, which is an extension of tensor calculus to deforming manifolds. Designed for advanced undergraduate and graduate students, this text invites its audience to take a fresh look at previously learned material through the prism of tensor calculus. Once the framework is mastered, the student is introduced to new material which includes differential geometry on manifolds, shape optimization, boundary perturbation and dynamic fluid film equations. The language of tensors, originally championed by Einstein, is as fundamental as the languages of calculus and linear algebra and is one that every technical scientist ought to speak. The tensor technique, invented at the turn of the 20 th century, is now considered classical. Yet, as the author shows, it remains remarkably vital and relevant. The author’s skilled lecturing capabilities are evident by the inclusion of insightful examples and a plethora of exercises. A great deal of material is devoted to the geometric fundamentals, the mechanics of change of variables, the proper use of the tensor notation and the discussion of the interplay between algebra and geometry. The early chapters have many words and few equations. The definition of a tensor comes only in Chapter 6 – when the reader is ready for it. While this text maintains a consistent level of rigor, it takes great care to avoid formalizing the subject. The last part of the textbook is devoted to the Calculus of Moving Surfaces. It is the first textbook exposition of this important technique and is one of the gems of this text. A number of exciting applications of the calculus are presented including shape optimization, boundary perturbation of boundary value problems and dynamic fluid film equations developed by the author in recent years. Furthermore, the moving surfaces framework is used to offer new derivations of classical results such as the geodesic equation and the celebrated Gauss-Bonnet theorem.
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Supporters do get access to PDFs of his draft books. These are rewrites of his original book on tensor calculus [1]. I worked through most of the original and I thought it was quite good.

[1] https://www.amazon.com.au/Introduction-Tensor-Analysis-Calcu...

Nov 07, 2017 · 2 points, 1 comments · submitted by naveen99
naveen99
I had given up on trying to understand relativity, quantum mechanics, and math notation behind machine learning because of tensor notation. Pavel has given me new hope in self study. https://m.youtube.com/playlist?list=PLlXfTHzgMRULkodlIEqfgTS...
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