1.

Record Nr.

UNINA9910480939103321

Autore

Carbone Lisa <1965->

Titolo

Non-uniform lattices on uniform trees / / Lisa Carbone

Pubbl/distr/stampa

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

ISBN

1-4704-0317-X

Descrizione fisica

1 online resource (146 p.)

Collana

Memoirs of the American Mathematical Society, , 0065-9266 ; ; number 724

Disciplina

510 s

511.3/3

Soggetti

Lattice theory

Trees (Graph theory)

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"July 2001, volume 152, number 724 (end of volume)."

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

""Contents""; ""0. Introduction""; ""1. Graphs of groups, tree actions and edge-indexed graphs""; ""1.1 Graphs of groups""; ""1.2 Group actions on trees and quotient graphs of groups""; ""1.3 Edge-indexed graphs and their groupings""; ""1.4 Existence of finite groupings""; ""2. Aut(X) and its discrete subgroups""; ""2.1 Tree lattices""; ""2.2 The group G[sub(H)] of deck transformations""; ""2.3 Constructing tree lattices""; ""3. Existence of tree lattices""; ""3.1 Locally compact groups and their lattices""; ""3.2 Lattice Existence Theorem""

""3.3 Existence of non-uniform lattices on uniform trees""""3.4 Existence of non-uniform coverings""; ""4. Non-uniform coverings of indexed graphs with an arithmetic bridge""; ""4.1 Geometric and arithmetic bridges in indexed graphs""; ""4.2 Changing the ramification factor of an arithmetic bridge""; ""4.3 Gluing unimodular subgraphs along connected intersections""; ""4.4 Open fanning of arithmetic bridges""; ""4.5 Indexed topological coverings""; ""4.6 Step 1 - Schematic diagram""; ""4.7 Step 2 - Construct topological covering""; ""4.8 Step 3 - Change the ramification factor""

""4.9 Step 4 - Construct rectangles""""4.10 Step 5 - Glue rectangles iteratively""; ""4.11 Step 6 - Adjoin bridges""; ""4.12 Step 7 - Multiple open fanning""; ""4.13 Edge with a common factor implies non-uniform covering""; ""5. Non-uniform coverings of indexed graphs with a



separating edge""; ""6. Non-uniform coverings of indexed graphs with a ramified loop""; ""7. Eliminating multiple edges""; ""7.1 Simplification of a graph with no loops""; ""7.2 Graphs with multiplicities""; ""7.3 Reduced factorization of an indexed graph""

""7.4 Canonical simplification of a unimodular indexed graph with no loops""""8. Existence of arithmetic bridges""; ""8.1 Unramified Loops""; ""8.2 Completion""; ""8.3 Suspension""; ""8.4 Restriction""; ""Bibliography""

2.

Record Nr.

UNINA9910964849903321

Autore

Bagchi Ann D (Ann Dalton)

Titolo

Making connections : a study of networking among immigrant professionals / / Ann D. Bagchi

Pubbl/distr/stampa

New York, : LFB Scholarly, 2001

ISBN

1-931202-94-X

Descrizione fisica

1 online resource (176 p.)

Collana

The new Americans

Disciplina

305.53/08691

Soggetti

Foreign workers - United States

Professional employees - Social networks - United States

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. 157-164) and index.

Nota di contenuto

Introduction: Social networks and immigrant professionals -- The conceptualization of migrant networks -- Legislative and demographic impacts on network usage -- The network ties of Indian and Filipino immigrant professionals -- Pilot study of immigrant professionals in New York -- Findings from the study of immigrant professional networking.

Sommario/riassunto

Utilizing quantitative and qualitative research methods Bagchi examines the role that networks play in the immigration of professionals to the United States. Past research of so-called "migrant networks" emphasized the role of close interpersonal ties and focused on lower-skilled immigrants. This research shows that casual ties play a significant role in bringing highly-skilled immigrants to the U.S., but also that the importance of the "strength of ties" varies considerably by gender and occupation. Bagchi used two quantitative data sources: the



Immigration and Naturalization Services? Public Use files and the Microdata files of the United States? Census Bureau as well as her own qualitative interviews. The book makes an important contribution to the understanding of the immigration experience through its study of heretofore neglected segments of the immigrant population and through its use of a combination of research techniques.