نتایج جستجو برای: $tau$-approximate identity

تعداد نتایج: 213921  

Journal: :sahand communications in mathematical analysis 2015
arash ghaani farashahi ali kamyabi-gol

this article presents a unified approach to the abstract notions of partial convolution and involution in $l^p$-function spaces over semi-direct product of locally compact groups. let $h$ and $k$ be locally compact groups and $tau:hto aut(k)$ be a continuous homomorphism.  let $g_tau=hltimes_tau k$ be the semi-direct product of $h$ and $k$ with respect to $tau$. we define left and right $tau$-c...

Journal: :bulletin of the iranian mathematical society 2015
a. mahmoodi

we study the notion of bounded approximate connes-amenability for‎ ‎dual banach algebras and characterize this type of algebras in terms‎ ‎of approximate diagonals‎. ‎we show that bounded approximate‎ ‎connes-amenability of dual banach algebras forces them to be unital‎. ‎for a separable dual banach algebra‎, ‎we prove that bounded‎ ‎approximate connes-amenability implies sequential approximate...

In this work, the convection-diffusion integro-differential equation with a weakly singular kernel is discussed. The  Legendre spectral tau method is introduced for finding the unknown function. The proposed method is based on expanding the approximate solution as the elements of a shifted Legendre polynomials. We reduce the problem to a set of algebraic equations by using operational matrices....

Journal: :journal of linear and topological algebra (jlta) 0
h rahimi department of mathematics, islamic azad university, central tehran branch, po. code 13185-768, tehran, iran. e tahmasebi department of mathematics, islamic azad university, central tehran branch, po. code 13185-768, tehran, iran.

in this paper we investigate some hereditary properties of amenability modulo an ideal of banach algebras. we show that if (e ) is a bounded approximate identity modulo i of a banach algebra a and x is a neo-unital modulo i, then (e ) is a bounded approximate identity for x. moreover we show that amenability modulo an ideal of a banach algebra a can be only considered by the neo-unital modulo...

E. Tahmasebi H. Rahimi,

In this paper we investigate some hereditary properties of amenability modulo an ideal of Banach algebras. We show that if $(e_alpha)_alpha$ is a bounded approximate identity modulo I of a Banach algebra A and X is a neo-unital modulo I, then $(e_alpha)_alpha$ is a bounded approximate identity for X. Moreover we show that amenability modulo an ideal of a Banach algebra A can be only considered ...

Journal: :journal of algebraic systems 2014
bharam mohammadzadeh

let s be a locally compact topological foundation semigroup with identity and ma(s) be its semigroup algebra. in this paper, we give necessary and sufficient conditions to have abounded approximate identity in closed codimension one ideals of the semigroup algebra $m_a(s)$ of a locally compact topological foundationsemigroup with identity.

Let S be a locally compact topological foundation semigroup with identity and Ma(S) be its semigroup algebra. In this paper, we give necessary and sufficient conditions to have abounded approximate identity in closed codimension one ideals of the semigroup algebra $M_a(S)$ of a locally compact topological foundationsemigroup with identity.

2005
Jay Halcomb Randall R. Schulz

We outline Tau, a practical and extensible hybrid theorem prover for first-order predicate calculus with identity. Tau is flexible and user-configurable, accepts the KIF Language, is implemented in Java, and has multiple user interfaces. Tau combines rule-based problem rewriting with Model Elimination, uses Brand’s Modification Method to implement identity, and accepts user-configurable heurist...

2005
Jay Halcomb Randall R. Schulz

We outline Tau, a practical and extensible hybrid theorem prover for first-order predicate calculus with identity. Tau is flexible and user-configurable, accepts the KIF Language, is implemented in Java, and has multiple user interfaces. Tau combines rule-based problem rewriting with Model Elimination, uses Brand’s Modification Method to implement identity, and accepts user-configurable heurist...

Journal: :journal of sciences, islamic republic of iran 2014
b. mohammadzadeh

let s be a locally compact foundation semigroup with identity and                          be its semigroup algebra. let x be a weak*-closed left translation invariant subspace of    in this paper, we prove that  x  is invariantly  complemented in   if and  only if  the left ideal  of    has a bounded approximate identity. we also prove that a foundation semigroup with identity s is left amenab...

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