منابع مشابه
A note on concave utility functions
The classical theory of preference among monetary bets represents people as expected utility maximizers with concave utility functions. Critics of this account often rely on assumptions about preferences over wide ranges of total wealth. We derive a prediction of the theory that bears on bets at any fixed level of wealth, and test the prediction behaviorally. Our results are discrepant with the...
متن کاملA note on generating random variables with log-concave densities
We present a black-box style rejection method that is valid for generating random variables with any log-concave density, provided that one knows a mode of the density, which is known only up to a constant factor.
متن کاملA note on matrix rigidity
In this paper we give an explicit construction of n × n matrices over finite fields which are somewhat rigid, in that if we change at most k entries in each row, its rank remains at least Cn(logq k)/k, where q is the size of the field and C is an absolute constant. Our matrices satify a somewhat stronger property, we which explain and call “strong rigidity.” We introduce and briefly discuss str...
متن کاملNote on Matrix Factorization
A large portion of Linear algebra (scientific computing) is devoted to accelerate computationally intensive operations through the deeper understanding on the structure of the matrix. While it is not extremely hard to obtain an analytical solutions for the problems of interest, often a large-size matrix or repetetive nature of the computations prohibit us from getting the actual solution in num...
متن کاملcompactifications and function spaces on weighted semigruops
chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...
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ژورنال
عنوان ژورنال: Journal of Mathematical Analysis and Applications
سال: 1995
ISSN: 0022-247X
DOI: 10.1006/jmaa.1995.1467