Social group

In the social sciences, a social group is defined as two or more people who interact with one another, share similar characteristics, and collectively have a sense of unity. Regardless, social groups come in a myriad of sizes and varieties. For example, a society can be viewed as a large social group. The system of behaviors and psychological processes occurring within a social group or between social groups is known as group dynamics. Definition Social cohesion approach A social group exhibits some degree of social cohesion and is more than a simple collection or aggregate of individuals, such as people waiting at a bus stop, or people waiting in a line. Characteristics shared by members of a group may include interests, values, representations, ethnic or social background, and kinship ties. Kinship ties being a social bond based on common ancestry, marriage or adoption. In a similar vein, some researchers consider the defining characteristic of a group as soc

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Related publications (65)

Related publications

Related people (9)

Related people

Related units (7)

Related units

Related concepts (33)

Related concepts

Related courses (9)

Related courses

Related lectures (13)

Related lectures

Sociology

Sociology is a social science that focuses on society, human social behavior, patterns of social relationships, social interaction, and aspects of culture associated with everyday life. In simple word

Social network

A social network is a social structure made up of a set of social actors (such as individuals or organizations), sets of dyadic ties, and other social interactions between actors. The social networ

Social science

Social science is one of the branches of science, devoted to the study of societies and the relationships among individuals within those societies. The term was formerly used to refer to the field of

AR-340: Building technology V

Technologie du Bâti V aborde le bâtiment comme un système d'opérations techniques et culturelles invoquant des choix liés à l'environnement, au matériau, à la structure, et au montage. L'objectif du cours est d'amener les étudiants à acquérir des compétences sur la conception critique du bâtiment.

MATH-113: Algebraic structures

Le but de ce cours est d'introduire et d'étudier les notions de base de l'algèbre abstraite.

DH-500: Computational Social Media

The course integrates concepts from media studies, machine learning, multimedia and network science to characterize social practices and analyze content in sites like Facebook, Twitter and YouTube. Students will learn computational methods to infer individual and networked phenomena in social media.

Characteristic classes as complete obstructions

Martina Rovelli

In the first part of this paper, we propose a uniform interpretation of characteristic classes as obstructions to the reduction of the structure group and to the existence of an equivariant extension of a certain homomorphism defined a priori only on a single fiber of the bundle. Afterwards, we define a family of invariants of principal bundles that detect the number of group reductions that a principal bundle admits. We prove that they fit into a long exact sequence of abelian groups, together with the cohomology of the base space and the cohomology of the classifying space of the structure group.

SPRINGER HEIDELBERG2019

Towards new invariants for principal bundles

Martina Rovelli

We investigate the theory of principal bundles from a homotopical point of view. In the first part of the thesis, we prove a classification of principal bundles over a fixed base space, dual to the well-known classification of bundles with a fixed structure group. This leads to an adjointness property in a homotopical context between the classifying space and the loop space. We then focus on characteristic classes, which are invariants for principal bundles that take values in the cohomology of the base space. Each characteristic class captures different geo- metric features of principal bundles. We propose a uniform treatment to interpret most of known characteristic classes as obstructions to group reduction and to the extension of a universal cocycle. By plugging in the correct parameters, the method recovers several classical theorems. Afterwards, we construct a long exact sequence of abelian groups for any principal bundle. This sequence involves the cohomology of the base space and the group cohomology of the structure group. Moreover the connecting map is deeply related with the characteristic classes of the bundle.

EPFL2017

Devout Landscape Migrant Placemaking through the Afterlife in Huế, Vietnam

Phi Nguyen Yen

The settlement history of Huế is one of constant demographic shifts, political turmoil, and natural vulnerability. A borderland and battleground during Vietnam’s invasion of Champa Kingdom, the North-South Civil War between two Vietnamese clans Trịnh - Nguyễn, then the Indochina and Vietnam Wars, Huế is essentially a frontier territory and its people one of diaspora. Such postcolonial displacements and coercions have amalgamated in a fabric phantasm of memories, materialized in sacred sites and rituals engaging with the Afterlife: ancestral past, supernatural beings – territorial patrons, and Death. An investigation into locals’ everyday life shows how religious beliefs have created a sacred thread that connected communities throughout the region into a seamlessly consecrated landscape where the living cohabits with the dead, and the natural coexists with the supernatural. Existing artifacts are oftentimes in hybrid forms, related to the present as a part of the community’s shared history and attested to the dialogues and negotiation among different cultures: Việt migrants from the North, Chinese refugees (after the Qing’s conquest of the Ming), defeated Cham indigenous people, Việt imperial rulers, French and American colonial forces. Moreover, they manifest local tactics in the transmission of knowledge and the handling in the ambivalent memories of violence. Using personal field works, archival materials, and other secondary sources, this paper seeks to unravel the interplay among religion, migration, culture, and identity through their spatial manifestations while giving voice to marginalized social groups.

2021