Author: Richard Askey
Publisher: American Mathematical Soc.
ISBN: 0821823213
Category : Jacobi polynomials
Languages : en
Pages : 63
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Book Description
A very general set of orthogonal polynomials in one variable that extends the classical polynomials is a set we called the q-Racah polynomials. In an earlier paper we gave the orthogonality relation for these polynomials when the orthogonality is purely discrete. We now give the weight function in the general case and a number of other properties of these very interesting orthogonal polynomials.
Author: Kiyosi Itô
Publisher: American Mathematical Soc.
ISBN: 0821812041
Category : Differential equations
Languages : en
Pages : 56
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Book Description
Author: Mircea Mustaţă
Publisher: American Mathematical Soc.
ISBN: 1470437813
Category : Education
Languages : en
Pages : 92
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Book Description
The authors use methods from birational geometry to study the Hodge filtration on the localization along a hypersurface. This filtration leads to a sequence of ideal sheaves, called Hodge ideals, the first of which is a multiplier ideal. They analyze their local and global properties, and use them for applications related to the singularities and Hodge theory of hypersurfaces and their complements.
Author: Richard S. Pierce
Publisher: American Mathematical Soc.
ISBN: 082181270X
Category : Commutative rings
Languages : en
Pages : 116
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Book Description
Author: Francesco Brenti
Publisher: American Mathematical Soc.
ISBN: 0821824767
Category : Combinatorial analysis
Languages : en
Pages : 118
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Book Description
Many sequences of combinatorial interest are known to be unimodal or log-concave and there has been a considerable amount of interest devoted to this topic. The main object of this work is to point out another branch of mathematics that can be successfully used to attack these kinds of problems, namely, the theory of total positivity.
Author: Maurice Auslander
Publisher: American Mathematical Soc.
ISBN: 0821812947
Category : Commutative rings
Languages : en
Pages : 150
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Book Description
The notions of torsion and torsion freeness have played a very important role in module theory--particularly in the study of modules over integral domains. Furthermore, the use of homological techniques in this connection has been well established. It is the aim of this paper to extend these techniques and to show that this extension leads naturally to several new concepts (e.g. k-torsion freeness and Gorenstein dimension) which are useful in the classification of modules and rings.
Author: Harold Rosenberg
Publisher: American Mathematical Soc.
ISBN: 1470441853
Category : Mathematics
Languages : en
Pages : 74
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Book Description
The authors develop a degree theory for compact immersed hypersurfaces of prescribed $K$-curvature immersed in a compact, orientable Riemannian manifold, where $K$ is any elliptic curvature function.
Author: Victor Guba
Publisher: American Mathematical Soc.
ISBN: 0821806394
Category : Mathematics
Languages : en
Pages : 130
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Book Description
Diagram groups are groups consisting of spherical diagrams (pictures) over monoid presentations. They can be also defined as fundamental groups of the Squier complexes associated with monoid presentations. The authors show that the class of diagram groups contains some well-known groups, such as the R. Thompson group F. This class is closed under free products, finite direct products, and some other group-theoretical operations. The authors develop combinatorics on diagrams similar to the combinatorics on words. This helps in finding some structure and algorithmic properties of diagram groups. Some of these properties are new even for R. Thompson's group F. In particular, the authors describe the centralizers of elements in F, prove that it has solvable conjugacy problems, etc.
Author: Barry Edward Johnson
Publisher: American Mathematical Soc.
ISBN: 0821818279
Category : Mathematics
Languages : en
Pages : 104
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Book Description
Let [Fraktur capital]A be a Banach algebra, [Fraktur capital]X a two-sided Banach [Fraktur capital] A-module, and define the cohomology groups [italic]H[italic superscript]n([Fraktur capital]A, [Fraktur capital]X) from the complex of bounded cochains in exact analogy to the classical (algebraic) case. This article gives an introduction to several aspects of the resulting theory.
Author: June Barrow-Green
Publisher: American Mathematical Soc.
ISBN: 9780821803677
Category : Biography & Autobiography
Languages : en
Pages : 294
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Book Description
Poincare's famous memoir on the three body problem arose from his entry in the competition celebrating the 60th birthday of King Oscar of Sweden and Norway. His essay won the prize and was set up in print as a paper in Acta Mathematica when it was found to contain a deep and critical error. In correcting this error Poincare discovered mathematical chaos, as is now clear from June Barrow-Green's pioneering study of a copy of the original memoir annotated by Poincare himself, recently discovered in the Institut Mittag-Leffler in Stockholm. Poincare and the Three Body Problem opens with a discussion of the development of the three body problem itself and Poincare's related earlier work. The book also contains intriguing insights into the contemporary European mathematical community revealed by the workings of the competition. After an account of the discovery of the error and a detailed comparative study of both the original memoir and its rewritten version, the book concludes with an account of the final memoir's reception, influence and impact, and an examination of Poincare's subsequent highly influential work in celestial mechanics.
