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Free Download Symplectic Geometry and Secondary Characteristic Classes by Izu Vaisman
English | PDF | 1987 | 225 Pages | ISBN : 1475719620 | 11.1 MB
The present work grew out of a study of the Maslov class (e. g. (37]), which is a fundamental invariant in asymptotic analysis of partial differential equations of quantum physics. One of the many in terpretations of this class was given by F. Kamber and Ph. Tondeur (43], and it indicates that the Maslov class is a secondary characteristic class of a complex trivial vector bundle endowed with a real reduction of its structure group. (In the basic paper of V. I. Arnold about the Maslov class (2], it is also pointed out without details that the Maslov class is characteristic in the category of vector bundles mentioned pre viously. ) Accordingly, we wanted to study the whole range of secondary characteristic classes involved in this interpretation, and we gave a short description of the results in (83]. It turned out that a complete exposition of this theory was rather lengthy, and, moreover, I felt that many potential readers would have to use a lot of scattered references in order to find the necessary information from either symplectic geometry or the theory of the secondary characteristic classes. On the otherhand, both these subjects are of a much larger interest in differential geome try and topology, and in the applications to physical theories.

Free Download Symplectic 4-Manifolds and Algebraic Surfaces: Lectures given at the C.I.M.E. Summer School held in Cetraro, Italy, September 2-10, 2003 by Denis Auroux , Marco Manetti , Paul Seidel , Bernd Siebert , Ivan Smith
English | PDF | 2008 | 363 Pages | ISBN : 3540782788 | 3.8 MB
Modern approaches to the study of symplectic 4-manifolds and algebraic surfaces combine a wide range of techniques and sources of inspiration. Gauge theory, symplectic geometry, pseudoholomorphic curves, singularity theory, moduli spaces, braid groups, monodromy, in addition to classical topology and algebraic geometry, combine to make this one of the most vibrant and active areas of research in mathematics. It is our hope that the five lectures of the present volume given at the C.I.M.E. Summer School held in Cetraro, Italy, September 2-10, 2003 will be useful to people working in related areas of mathematics and will become standard references on these topics.

Free Download Emil Makovicky, "Symmetry: Through the Eyes of Old Masters"
English | ISBN: 3110417057 | 2016 | 260 pages | EPUB | 131 MB
A large range of symmetries in art is presented through clear and aesthetically outstanding examples of historical ornaments. Compendious comments illustrate the selected photographic material by addressing the interested and specialist reader alike.

Free Download Sustainable Water Solutions in the Western Desert, Egypt: Dakhla Oasis by Erina Iwasaki
English | EPUB | 2021 | 295 Pages | ISBN : 3030640043 | 156.7 MB
This book is a multidisciplinary manuscript bringing together contributions on water issues from natural and social scientists focused on water management and structures in a challenging environmental situation such as Dakhla Oasis in Egypt's western desert. The authors of this book are relevant scientists in hydrology, geology, remote sensing, agriculture, history, and sociology.

Free Download Larry E. Erickson, "Sustainable Energy Pathways to Net Zero"
English | ISBN: 1032499419 | 2024 | 134 pages | PDF | 4 MB
Sustainable Energy Pathways to Net Zero addresses realistic pathways between now and 2050 to reach net zero: a steady state concentration of greenhouse gases in the atmosphere. It discusses solar and wind energy, hydrogen, energy storage, and electric vehicles, all of which are becoming an increasingly cost-efficient part of these pathways. Hydrogen, the price of electricity, the integration of different sources of electricity into the electrical grid, and the electric vehicle charging networks are crucial in balancing supply and demand. This book describes how these different energy factors fit together. It emphasizes the fact that the intersection of these technologies is where the most profound advances can occur.

Free Download Sustainable Energy Development and Innovation: Selected Papers from the World Renewable Energy Congress (WREC) 2020 by Ali Sayigh
English | EPUB | 2022 | 880 Pages | ISBN : 3030762203 | 297.8 MB
This book contains selected papers presented during the World Renewable Energy Congress (WREC) 2020 at the Instituto Superior Técnico in Lisbon. The WREC is dedicated to promoting renewable energy global development, and features top international experts, policy makers, scientists, engineers, technology developers, and business practitioners addressing the most current research and technological breakthroughs in sustainable energy development and innovation. The contributions address policy and renewable energy technologies and applications in all sectors-for heating and cooling, agricultural applications, water, desalination, industrial applications, and for the transport sectors.

Free Download Sustainable Communication Networks and Application: Proceedings of ICSCN 2020 by P. Karuppusamy
English | EPUB | 2021 | 681 Pages | ISBN : 9811586764 | 114.6 MB
This book includes novel and state-of-the-art research discussions that articulate and report all research aspects, including theoretical and experimental prototypes and applications that incorporate sustainability into emerging applications.

Free Download Sustainability of Water Resources: Impacts and Management by Basant Yadav, Mohit Prakash Mohanty, Ashish Pandey, Vijay P. Singh, R. D. Singh
English | PDF,EPUB | 2022 | 414 Pages | ISBN : 3031134664 | 100.1 MB
This book covers a wide spectrum of water resources management, including water supply and demand, operation and maintenance of water distribution systems, water quality assessment, impacts of climate change on hydrological extremes, and water governance. Rapid urbanization, industrialization, and population growth are the major factors contributing to a significant rise in water demands across all the sectors in India. Although the Indian Summer Monsoon Rainfall contributes primarily to the available surface and groundwater resources, recurrent non-uniform/erratic rainfall events have resulted in widespread water scarcity. On many occasions, extreme meteorological conditions trigger the severity of water-related disasters such as floods and droughts. The untreated wastewater from domestic and industrial sources discharged through un-engineered means, adds to the issue as it ends up polluting the surface and groundwater resources.

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Dl4All - Download free For All: software and educational resource.

Symplectic Geometry and Secondary Characteristic Classes

Symplectic 4–Manifolds and Algebraic Surfaces

Symmetry Through the Eyes of Old Masters

Symmetrical and Asymmetrical Distributions in Statistics and Data Science

Sustainable Water Solutions in the Western Desert, Egypt Dakhla Oasis

Sustainable Energy Pathways to Net Zero

Sustainable Energy Development and Innovation

Sustainable Communication Networks and Application Proceedings of ICSCN 2020

Sustainability of Water Resources Impacts and Management

Sustainability of Transport Infrastructures