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The general study of Green's function written in the above form, and its relationship to the function spaces formed by the eigenvectors, is known as Fredholm theory. There are several other methods for finding Green's functions, including the method of images, separation of variables, and Laplace transforms. [1]
In many-body theory, the term Green's function (or Green function) is sometimes used interchangeably with correlation function, but refers specifically to correlators of field operators or creation and annihilation operators. The name comes from the Green's functions used to solve inhomogeneous differential equations, to which they are loosely ...
Green function might refer to: Green's function of a differential operator; Deligne–Lusztig theory (Green function) in the representation theory of finite groups of ...
A sociological theory is a supposition that intends to consider, analyze, and/or explain objects of social reality from a sociological perspective, [1]: 14 drawing connections between individual concepts in order to organize and substantiate sociological knowledge.
Social theories are analytical frameworks, or paradigms, that are used to study and interpret social phenomena. [1] A tool used by social scientists, social theories relate to historical debates over the validity and reliability of different methodologies (e.g. positivism and antipositivism), the primacy of either structure or agency, as well as the relationship between contingency and necessity.
Sociology overlaps with a variety of disciplines that study society, in particular social anthropology, political science, economics, social work and social philosophy. Many comparatively new fields such as communication studies, cultural studies, demography and literary theory, draw upon methods that
Social Theory and Social Structure (STSS) was a landmark publication in sociology by Robert K. Merton. It has been translated into close to 20 languages and is one of the most frequently cited texts in social sciences. [1] It was first published in 1949, although revised editions of 1957 and 1968 are often cited.
The following outline is provided as an overview of and topical guide to the discipline of sociology: . Sociology – the study of society [1] using various methods of empirical investigation [2] and critical analysis [3] to understand human social activity, from the micro level of individual agency and interaction to the macro level of systems and social structure.