Titlebook: A Course in Simple-Homotopy Theory; Marshall M. Cohen Textbook 1973 Springer-Verlag New York 1973 Algebraic topology.CW complex.Homotopy.h

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Front Matterleries, producing about 40 thousand million litres of wastewater annually (Pant and Adholeya, 2007). Ministry of Environment, Forestry and Climate Change (MOEF & CC) has categorised alcohol distilleries among the top positions in the “Red Category Industry” list (Tewari et al., 2007). A huge amount

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Lens Spaces,und water. However, whether a chemical will reach the ground water will depend not only upon its movement through the soil, but also upon its disappearance from the soil. If, for instance, the rate of degradation is sufficiently rapid compared to the rate of leaching, the chemical will disappear bef

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Algebra,and errors indulged by environmental decision-makers. There is some overlap between chapters, but this is not extensive. I have made no attempt to eliminate it, because the aim has been to present personal points of view, not a systematic account of environmental problems. Similarly, there are important topic978-94-017-3757-9978-0-585-36577-0