Tensors, Differential Forms, and Variational Principles

Incisive, self-contained account of tensor analysis and the calculus of exterior differential forms, interaction between the concept of invariance and the calculus of variations. Emphasis is on analytical techniques, with large number of problems, from routine manipulative exercises to technically difficult assignments.

Who's Pulling Your Strings?: How to Break the Cycle of Manipulation and Regain Control of Your Life
by Harriet Braiker

In Who's Pulling Your Strings?, Dr. Harriet B. Braiker,New York Times bestselling author of The Disease to Please, explains how depression, low self-esteem, chronic anger, and feelings of helplessness are often the result of being caught in relationships with manipulative people--including family members, friends, coworkers, and associates. More importantly, she arms readers with the knowledge and tools they need to understand and identify manipulative personalities and to free themselves from the bondage of relationships with them.
Working from sound psychological theory and research, yet writing in a warm, accessible style, Braiker exposes the most common methods manipulative people use to control others--and makes clear that it takes at least two people to enable such a relationship to function. With the help of valuable self-assessment quizzes, action plans, and how-to exercises she empowers readers to:
Recognize the signs of a manipulative relationship
Spot manipulators and their typical modus operandi
Assess their own vulnerability to manipulation
Identify the 7 main "Head Games" manipulators play
...and much more, including informative case studies and highly effective Resistance Tactics to help those who identify themselves as victim-participants end the damaging cycle of control and manipulation--and clear the way for success and happiness.