Hervé Lehning et collectif, "Les équations algébriques : Aborder les inconnues"

Hervé Lehning et collectif, "Les équations algébriques : Aborder les inconnues"


Publisher: Pole | 2012 | ISBN: 2848841397 | French | PDF | 160 pages | 89.8 Mb

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À Babylone, en Égypte ou en Grèce, l"homme antique est confronté à des partages de champs ou d"héritages qui le conduisent déjà à résoudre des équations algébriques, parfois sans le savoir. De ces problèmes de la vie quotidienne naîtra l"inconnue. Depuis, les équations se résolvent aussi pour elles-mêmes, sans souci du concret. Afin de percer leur mystère, le mathématicien affûte ses méthodes. Il doit accepter l"insuffisance de la stricte algèbre, ne dédaigner ni les ressources de la géométrie, ni le recours aux approximations. Cette quête le mènera aux confins de l"univers des nombres, dans des mondes peuplés d"irrationnels, de transcendants, d"imaginaires. Elle sera l"origine de révolutions mathématiques, telles que la théorie de Galois.

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Lesbian and Gay Studies

Theo Sandfort, "Lesbian and Gay Studies"


English | ISBN: 0761954171, 076195418X | 2000 | 288 pages | PDF | 7 MB

This timely and thoughtful book seeks to demonstrate the coherence of lesbian and gay studies. It introduces the reader to the principal inter-disciplinary approaches in the field and critically assesses their strengths and weaknesses whilst asking what is lesbian and gay studies? When did it emerge? And what are its achievements and research agenda? The Connections between the academic study of the subject and the lesbian and gay movement are also examined.








Coming out has been one of the most significant social and cultural changes of the postwar period. The gay and lesbian movement has emerged as a major political and cultural force. It poses a series of far reaching questions about the organization of identity, the operation of power and the limits of tolerance. Lesbian and gay studies has emerged as a vital and enriching field. It offers challenges to more traditional disciplines and requires new forms of thought about the connections between academic work and personal politics. This book will generate much interest in academic departments of lesbian and gay studies, gender, sociology, cultural studies and political science.

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Buying A Business And Making It Work: A step-by-step guide to purchasing a business and making it successful [Repost]

Buying A Business And Making It Work: A step-by-step guide to purchasing a business and making it successful by Mark Blayney


English | Mar. 5, 2007 | ISBN: 1845280415 | 496 Pages | PDF | 16.88 MB

Buying a business is not just a case of doing a deal, however involved and pressurised that might feel at the time. You buy to become the owner of a successful business that achieves your personal and professional objectives. This book takes you on a programme of five phases that will help you to achieve those objectives. 1 The planning phase 2 The search phase 3 Approaching and screening – narrowing your search down and making contact with the current owners. 4 Negotiating and checking – the phase that usually leads to doing the deal 5 Making the business work so that it will provide you with the future income stream, the lifestyle or the security you are seeking, or the increased market share you want for your present business.

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