Results 61 to 70 of about 756,869 (169)
The Core‐Periphery Model Under Additively Separable Preferences
Journal of Regional Science, Volume 65, Issue 2, Page 378-402, March 2025.ABSTRACT This paper reexamines Krugman's core‐periphery model by substituting his constant elasticity of substitution (CES) utility with a general additively separable utility that comprehensively captures the pro‐competitive effect while preserving the income effect.
Congcong Wang, Dao‐Zhi Zeng, Xiwei Zhu
wiley +1 more source
Completely contractive representations of some doubly generated antisymmetric operator algebras. [PDF]
, 1998 Contractive weak star continuous representations of the Fourier binest algebra (of Katavolos and Power) are shown to be completely contractive. The proof depends on the approximation of by semicrossed product algebras and on the complete contractivity of
Power, Stephen C.
core +4 more sources
The relation between b-weakly compact operator and KB-operator
, 2019 Our aim is to solve the problem asked by Bahramnezhad and Azar in ``KB-operators on Banach lattices and their relationships with Dunford-Pettis and order weakly compact operators{''}.
Turan, Bahri and Altin, Birol
core +2 more sources
Bridging Dimensions in STEAM Education: Linking 2D Function Art and 3D Modeling Using GeoGebra
School Science and Mathematics, EarlyView.ABSTRACT This study examines a constructionist‐oriented STEAM learning activity in which Grade 11 students used GeoGebra 3D to model bridges. Building on prior work in function art, the project extended mathematical art‐making from two‐dimensional representations to three‐dimensional structures, emphasizing the use of functions, geometric ...
Guillermo Bautista Jr +4 more
wiley +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend Mitochondria are highly dynamic organelles that continuously remodel their architecture through coordinated cycles of fusion and fission. This review examines the four key GTPases that orchestrate mitochondrial dynamics in mammals: MFN1, MFN2, OPA1, and DRP1.
Rémi Chaney +4 more
wiley +1 more source
Relations entre Psi_B et quelques représentations temps-fréquence [PDF]
, 2010 Psi_B operator is an energy operator that measures the interactions between two complex signals. In this letter, new properties of Psi_B operator are presented.
BOUDRAA, Abdel-Ouahab
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Target Capture of Ancient Shell DNA Enables Phylogenetic Reconstruction of Deep‐Sea Molluscs
Molecular Ecology Resources, Volume 26, Issue 7, October 2026.ABSTRACT Target capture is widely used to enrich endogenous DNA from calcium phosphate skeletal material in vertebrates, but its performance on calcium carbonate hard parts widely produced by invertebrates remains poorly understood. Here, we compared DNA recovery from four fresh and 12 ancient (eight radiocarbon‐dated to 1671–1135 years old before ...
Yi‐Xuan Li +8 more
wiley +1 more source
Fixed point theory for multivalued
Fixed Point Theory and Applications, 2011 The purpose of this paper is to present a fixed point theory for multivalued φ-contractions using the following concepts: fixed points, strict fixed points, periodic points, strict periodic points, multivalued Picard and weakly Picard operators ...
Lazăr Vasile
doaj
Fixed point results for generalized convex orbital Lipschitz operators
Demonstratio MathematicaKrasnoselskii’s iteration is a classical and important method for approximating the fixed point of an operator that satisfies certain conditions. Many authors have used this approach to obtain several famous fixed point theorems for different types of ...
Zhou Mi +4 more
doaj +1 more source
On the Existence of Solutions of Dynamic Equations on Time Scales in Banach Spaces
Mathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 15358-15384, 15 September 2026.ABSTRACT In this paper we address the question of solvability of dynamic equations on time scales in Banach spaces. In particular, our main theorem extends the result for classical differential equations in Banach spaces of Banaś and Goebel established in [5], to an arbitrary time scale.
Dušan Oberta
wiley +1 more source