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At first sight, finitely generated abelian groups and canonical forms of matrices appear to have little in common. However, reduction to Smith normal form, named after its originator H.J.S.Smith in 1861, is a matrix version of the Euclidean algorithm and is exactly what the theory requires in both cases. Starting with matrices over the integers, Part1 of this book provides a measured introduction to such groups: two finitely generated abelian groups are isomorphic if and only if their invariant factor sequences are identical. The analogous theory of matrix similarity over a field is then...

Fluffy gives his magic away to a weasel against his cousin Daphne's better judgement. When the weasel threatens to ruin Christmas for everyone, Fluffy must decide whether to use his new gift to ask Santa for help. A tale of stereotyping and making friends at Christmas. This is the third book in the 'Fluffy The Magic Penguin' series

Fluffy is a penguin different to every other. He is on a mission. After his parents are taken to the wild, Fluffy sets off on a dramatic adventure to help anyone he can. Fluffy hugs those who are alone or sad and meets many interesting characters on his journey. Including Father Christmas, who says he can get Fluffy back home. This is the first book in the 'Fluffy The Magic Penguin' series.

Follow Fluffy as he discovers his powers and endeavours on a journey to help as many animals and people as possible. Fluffy ultimately gets his reward for his selfless behaviour;...

Fluffy brings his best friend home to meet his family. Everyone is happy and having fun until Fluffy can no longer use his magic. Stuck in London, he must find a way to reach the mysterious 'Magic Fairy' and get his magic back. Fluffy and Minty meet an old friend called Ringo on their journey. This is the second book in the 'Fluffy The Magic Penguin' series.

Fluffy is faced with the hardest and lowest point of his short life. He wants to be brave in front of his friend. However, he is afraid. But he makes a plan and sticks to it, ultimately leading to him solving the problem....

First published in 1949, this book presents the collected works of Christopher Smart, the eighteenth-century poet whose life has an attraction for the curioso of literature. There is the early marriage with Anne Vane, his secret marriage, eighteenth-century Cambridge life, the intrigues of Grub Street, and, finally, insanity and confinement in an asylum. Smart remains a strange, enigmatic figure, repulsive or attractive according to the temperament of the investigator.

His poetry is not easy to disentangle from his character - egocentric, given to exhibitionism, childish,...

Historically, the relationship between towns and surrounding farm families has ranged from suspicion to benign neglect. This book shows that rural America can be revived by uniting the interests of both farm and non-farm populations through value-added enterprises, especially those based on the principles of New Generation Cooperatives (NGCs). Instead of sending agricultural commodities out of the region to be processed, farmers and communities can collaborate to process the commodities locally, thereby adding value to the local rural economy.

In this edited volume, nationally...