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      • Science & Mathematics

        Nonlinear Wave Equations

        by Li Tatsien, Zhou Yi

        Nonlinear wave equations belong to a typical category of nonlinear evolutionary equations that is of great theoretical significance and practical value. The whole book has got fifteen chapters in all. The first seven serve as a prelude for later discussions, but still have their own meanings and values. Among the later eight chapters, five discuss the global existence and the lower bound estimates of life-span for classical solutions in all possible situations by adopting the global iteration method, including the proof of global existence of classical solutions under the hypothesis of the null condition; two focus on demonstrating the sharpness of the obtained lower bound estimates of life-span; and the last chapter entails relevant applications and extensions.

      • Science & Mathematics

        Mathematical Analysis of Shock Wave Reflection

        by Chen Shuxing

        In this book, partial differential equation is used as the main tool to make a thorough analysis of the mathematical problems involved in shock reflection. For the convenience of readers, this book first introduces the hydrodynamic equations and some basic matters of shock wave, then analyses the steady and unsteady shock wave reflection, regular reflection and Mach reflection one by one, and gives detailed mathematical proof of some key problems. At the same time, the book also raises some unsolved problems and points out the difficulties that will be encountered, and looks forward to further research. This book is suitable for graduate students and researchers, engineers and technicians of relevant majors to read, hoping to help readers quickly enter this field of study.

      • Science & Mathematics

        Evolutionary History of Agnatha and Fossil Record from China

        by Gai Shikun, Zhu Min

        The morphology, anatomy, taxonomy, evolution, ecology, and behavior of major groups of fossil and extant agnathans were presented in depth, and the relevant fossil finding and research history were introduced as well. A majority of Myllokunmingiida and Galeaspida found in China, and representatives of Euconodonta and other major agnathan groups including Myxini, Petromyzontida, Arandaspida, Astraspida, Heterostraci, Anaspida, Thelodontida, Pituriaspida and Osteostraci, 47 Families, 99 genera, 107 species in total, were selected for systematic description. The data of each genus and species included diagnosis, locality, horizon, and age, accompanied by fossil photos, anatomical illustrations and ecological restorations. This book is suitable to read for both professionals of paleontology, biology, geology, and amateurs of paleontology.

      • Science & Mathematics

        The Brain and AI:Correspondence between a German Engineer and a Chinese Scientist

        by Karl Schlagenhauf & Gu Fanji

        Volume one:Brain Research, a New Continent to be Explored  Armed with powerful AI weapons, engineers are trying to challenge the new world of human brain. Will this be the dawn of a new era, or a dream of just talking to themselves? Who can laugh at last? Volume two:Mystery of Consciousness and Myth of Mind Uploading Now some people think that artificial intelligence in the future, like the human brain, will have the characteristics of consciousness and thinking, and become the "container" of human intelligence. Will mind-uploading and digital immortality be the next human creation, or just an illusion? Volume three:The Third Spring of AI At what stage is AI at present? Will the "marriage" between brain science and artificial intelligence succeed? Will AI really breed the next new species to dominate the planet?

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