本书俄文版: http://pilotlz.ru/books/267/4721/ В книге излагаются основные факты, относящиеся к уравнению Лапласа, уравнению теплопроводности и волновому уравнению как простейшим представителям трех основных классов уравнений с частными производными. Приводятся доказательство теоремы Ковалевской, смешанная задача для уравнения колебаний неоднородной струны, задача Коши для волнового ...(展开全部)

本书俄文版: http://pilotlz.ru/books/267/4721/ В книге излагаются основные факты, относящиеся к уравнению Лапласа, уравнению теплопроводности и волновому уравнению как простейшим представителям трех основных классов уравнений с частными производными. Приводятся доказательство теоремы Ковалевской, смешанная задача для уравнения колебаний неоднородной струны, задача Коши для волнового ...(展开全部)

April is a cruel time， Even though the sun may shine， And world will turns to the shapes As it slowly crumbs away， Still...

April is a cruel time， Even though the sun may shine， And world will turns to the shapes As it slowly crumbs away， Still...

Emotion, Third Edition, offers a comprehensive and integrated survey of the field of affective science. The text covers the major theories of emotion in detail and reviews both classic and cutting-edge research on emotional processes from various subdisciplines. The authors' thoughtful engagement with ongoing controversies, contradictory findings, methodological limitations, an...(展开全部)

Macroeconomics presents real economic questions and data to help you learn about the world around you. The text uses themes of optimization, equilibrium, and empiricism to not only illustrate the power of simple economic ideas, but also to explain and predict what's happening in today's society. In the 3rd Edition, each chapter begins with an empirical, relevant question that i...(展开全部)

We are living in a world in which the existence of risk is constantly debated, misinformation and disinformation are rife and spread quickly and easily through online media, and where governments and institutions continue to avoid taking decisive action even when there is general agreement that a serious threat exists. Understanding how people, social groups and social organiza...(展开全部)

Numerical Analysis, 3rd Edition is for students of engineering, science, mathematics, and computer science who have completed elementary calculus and matrix algebra. It covers both standard topics and some of the more advanced numerical methods used by computational scientists and engineers, while remaining readable and relevant for undergraduates. Sauer discusses the fundament...(展开全部)