1.

Record Nr.

UNINA9910479979903321

Autore

Choi Suhyoung

Titolo

The decomposition and classification of radiant affine 3-manifolds / / Suhyoung Choi

Pubbl/distr/stampa

Providence, Rhode Island : , : American Mathematical Society, , [2001]

©2001

ISBN

1-4704-0323-4

Descrizione fisica

1 online resource (137 p.)

Collana

Memoirs of the American Mathematical Society, , 0065-9266 ; ; number 730

Disciplina

510 s

514/.3

Soggetti

Three-manifolds (Topology)

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"Volume 154, number 730 (first of 5 numbers)."

Nota di bibliografia

Includes bibliographical references (pages 121-122).

Nota di contenuto

""Contents""; ""Chapter 0. Introduction""; ""Acknowledgement""; ""Chapter 1. Preliminary""; ""Chapter 2. (n � l)-convexity: previous results""; ""Chapter 3. Radiant vector fields, generalized affine suspensions, and the radial completeness""; ""Chapter 4. Three-dimensional radiant affine manifolds and concave affine manifolds""; ""Chapter 5. The decomposition along totally geodesic surfaces""; ""Chapter 6. 2-convex radiant affine manifolds""; ""Chapter 7. The claim and the rooms""; ""Chapter 8. The radiant tetrahedron case""; ""Chapter 9. The radiant trihedron case""

""Chapter 10. Obtaining concave-cone affine manifolds""""Chapter 11. Concave-cone radiant affine 3-manifolds and radiant concave affine 3-manifolds""; ""Chapter 12. The nonexistence of pseudo-crescent-cones""; ""Appendix A. Dipping intersections""; ""Appendix B. Sequences of n-balls""; ""Appendix C. Radiant affine 3-manifolds with boundary, and certain radiant affine 3-manifolds""; ""1. The nonexistence of certain radiant affine 3-manifolds""; ""2. Radiant affine 3-manifolds with boundary have total cross-sections""; ""Bibliography""



2.

Record Nr.

UNINA9910787524403321

Autore

Conn Steven

Titolo

Metropolitan Philadelphia [[electronic resource] ] : living with the presence of the past / / Steven Conn

Pubbl/distr/stampa

Philadelphia, : University of Pennsylvania Press, c2006

ISBN

0-8122-0408-5

Descrizione fisica

1 online resource (285 p.)

Collana

Metropolitan portraits

Classificazione

ZH 9400

Disciplina

974.8/11

Soggetti

Human geography - Pennsylvania - Philadelphia Region

Middle class - Pennsylvania - Philadelphia Region

Philadelphia (Pa.) Civilization

Philadelphia (Pa.) Social conditions

Philadelphia (Pa.) History

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references (p. 253-263) and index.

Nota di contenuto

Front matter -- Contents -- Prologue: The Naked City -- Chapter One. Echoes of William Penn -- Chapter Two. The Ghosts That Haunt Us -- Chapter Three. The Delaware Valley Makes the Middle Class -- Chapter Four. Two Rivers Run Through It -- Chapter Five. In the Mind's Eye: Imagining the Philadelphia Region -- Epilogue: The Naked City and the Story of Decline -- Notes -- Index -- Acknowledgments

Sommario/riassunto

As America's fifth largest city and fourth largest metropolitan region, Philadelphia is tied to its surrounding counties and suburban neighborhoods. It is this vital relationship, suggests Steven Conn, that will make or break greater Philadelphia. The Philadelphia region has witnessed virtually every major political, economic, and social transformation of American life. Having once been an industrial giant, the region is now struggling to fashion a new identity in a postindustrial world. On the one hand, Center City has been transformed into a vibrant hub with its array of restaurants, shops, cultural venues, and restored public spaces. On the other, unchecked suburban sprawl has generated concerns over rising energy costs and loss of agriculture and open spaces. In the final analysis, the region will need a dynamic central city for its future, while the city will also need a



healthy sustainable region for its long-term viability. Central to the identity of a twenty-first century Metropolitan Philadelphia, Conn argues, is the deep and complicated interplay of past and present. Looking at the region through the wide lens of its culture and history, Metropolitan Philadelphia moves seamlessly between past and present. Displaying a specialist's knowledge of the area as well as a deep personal connection to his subject, Conn examines the shifting meaning of the region's history, the utopian impulse behind its founding, the role of the region in creating the American middle class, the regional watershed, and the way art and cultural institutions have given shape to a resident identity. Impressionistic and beautifully written, Metropolitan Philadelphia will be of great interest to urbanists and at the same time accessible to the wider public intrigued in the rich history and cultural dynamics of this fascinating region. What emerges from the book is a wide-ranging understanding of what it means to say, "I'm from Philadelphia."