Results 11 to 20 of about 114 (62)
Regional Science Policy &Practice, Volume 15, Issue 6, Page 1147-1162, August 2023., 2023 Abstract This study examines the response of private consumption and private investment to an exogenous shock of fiscal policy and estimates the size of fiscal multipliers during periods of economic slacks and positive output gap. Panel vector autoregressive (VAR) estimation technique is performed on a sample of 18 Sub‐Saharan African (SSA) countries ...
Gabriel Temesgen Woldu
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RM ALGEBRAS AND COMMUTATIVE MOONS
, 2021 Some generalizations of BCI algebras (the RM, BH, CI, BCH, BH**, BCH**, and *aRM** algebras) satisfying the identity (x → 1) → y = (y → 1) → x are considered.
A. Walendziak
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Orderings of monomial ideals [PDF]
, 2003 We study the set of monomial ideals in a polynomial ring as an ordered set, with the ordering given by reverse inclusion. We give a short proof of the fact that every antichain of monomial ideals is finite.
M. Aschenbrenner, W. Pong
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Positive families and Boolean chains of copies of ultrahomogeneous structures
, 2020 A family of infinite subsets of a countable set X is called positive iff it is closed under supersets and finite changes and contains a co-infinite set. We show that a countable ultrahomogeneous relational structure X has the strong amalgamation property
Miloš S. Kurilić, Boriša Kuzeljević
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Left and right generalized Drazin invertible operators on Banach spaces and applications
Operators and Matrices, 2019 In this paper, left and right generalized Drazin invertible operators on Banach spaces are defined and characterized by means of the generalized Kato decomposition. Then, new binary relations associated with these operators are presented and studied.
D. E. Ferreyra, F. Levis, N. Thome
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Shorted operators with respect to a partial order in a dual module
, 2020 The purpose of this paper is to determine exactly the shorted operators in the sense of linear functionals under the direct sum partial order. Mathematics subject classification (2010): 06A06, 06F25, 06F99, 16B99.
B. Ungor, S. Halicioglu, A. Harmanci
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Ideal extensions of ordered sets
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 53, Page 2847-2861, 2004., 2004 The ideal extensions of semigroups—without order—have been first considered by Clifford (1950). In this paper, we give the main theorem of the ideal extensions for ordered sets. If P, Q are disjoint ordered sets, we construct (all) the ordered sets V which have an ideal P′ which is isomorphic to P, and the complement of P′ in V is isomorphic to Q ...
Niovi Kehayopulu
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Extended blocker, deletion, and contraction maps on antichains
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 10, Page 607-616, 2003., 2003 Families of maps on the lattice of all antichains of a finite bounded poset that extend the blocker, deletion, and contraction maps on clutters are considered. Influence of the parameters of the maps is investigated. Order‐theoretic extensions of some principal relations for the set‐theoretic blocker, deletion, and contraction maps on clutters are ...
Andrey O. Matveev
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Monotone transformations on B(H) with respect to the left-star and the right-star partial order
, 2014 Let H be an infinite dimensional complex Hilbert space, and let B(H) be the set of all bounded linear operators on H . In the paper equivalent definitions for the left-star and the right-star partial orders on B(H) are given and bijective additive maps ...
G. Dolinar, A. Guterman, J. Marovt
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A note on operators of deletion and contraction for antichains
International Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 12, Page 725-729, 2002., 2002 The operators of deletion and contraction for clutters are generalized to those for antichains of finite bounded posets. A generalization of the result by Seymour (1976), describing the relationship between the operators of deletion, contraction, and the blocker map, is considered as a comparison in the lattice of antichains of a poset.
Andrey O. Matveev
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