منابع مشابه
Embedding the Flag Representation in Divided Powers
A generalization of a theorem of Crabb and Hubbuck concerning the embedding of flag representations in divided powers is given, working over an arbitrary finite field F, using the category of functors from finite-dimensional F-vector spaces to F-vector spaces.
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Let k be a commutative ring, A a commutative k-algebra and D the filtered ring of k-linear differential operators of A. We prove that: (1) The graded ring grD admits a canonical embedding θ into the graded dual of the symmetric algebra of the module ΩA/k of differentials of A over k, which has a canonical divided power structure. (2) There is a canonical morphism θ from the divided power algebr...
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When agents first become active investors in financial markets, they are relatively inexperienced. Much of the literature focuses on the incentives of presumably sophisticated informed agents to produce information, and not on the na¨ıve agents. However , unsophisticated agents are important aspects of financial markets and worth analyzing further. In this paper, we provide a theoretical perspe...
متن کاملAction of Divided Diierences on Modiied Powers Complete Functions of Alphabets
Divided diierences are operators acting on functions of several variables. We describe this action on the basis of modiied powers (that is x k is replaced by (x ? a 0)(x ? a 1)::(x ? a n?1)). Special cases are of interest when a i = q i or a i = i. 1 Preliminaries We rst recall some properties of complete symmetric functions and divided diierences. Let us x the notations for alphabets.ticular, ...
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ژورنال
عنوان ژورنال: Journal of Pure and Applied Algebra
سال: 2018
ISSN: 0022-4049
DOI: 10.1016/j.jpaa.2017.10.014