Results 31 to 40 of about 44,228 (247)

Application of the averaging method to the problems of optimal control of the impulse systems

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
The problem of optimal control at finite time interval for a system of differential equations with impulse action at fixed moments of time as well as the corresponding averaged system of ordinary differential equations are considered. It is proved the
T.V. Koval'chuk   +3 more
doaj   +1 more source

Compact lumps [PDF]

open access: yesEPL (Europhysics Letters), 2015
We study the presence of lumplike solutions in models described by a single real scalar field with standard kinematics in two-dimensional spacetime. The results show several distinct models that support the presence of bell-shaped, lumplike structures which may live in a compact space.
Bazeia, D., Marques, M. A., Menezes, R.
openaire   +2 more sources

单位球上βP空间到Zα型空间的加权Cesàro算子(Extended Cesàro operators from βP spaces to Zα spaces on the unit ball)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2013
Boundary and compact of extended Cesàro operators from βP spaces to Zygmund type space in the unit ball are studied. With the methods of functional analysis and several complex variables, the necessary and sufficient conditions are given for extended ...
ZHAOYan-hui(赵艳辉)
doaj   +1 more source

A New Cluster Validity Index Based on Local Density of Data Points

open access: yesAxioms
Multiple cluster validity indices (CVIs) have been introduced for diverse applications. In practice, clusters exhibit varying shapes, sizes, densities, and closely spaced centers, which are typically unknown beforehand.
Bin Yan, Yimin Yin, Pengfei Liu
doaj   +1 more source

On Physical Urban Boundaries, Urban Sprawl, and Compactness Measurement: A Case Study of the Wen-Tai Region, China

open access: yesLand, 2022
China’s rapid urbanization has been accompanied by serious urban sprawl. Instead of measuring the physical urban boundaries (PUBs), most of existing studies in China rely on yearbook statistics to describe the growth of urbanized area; therefore, the ...
Xiaoling Dai   +3 more
doaj   +1 more source

Compact orthoalgebras [PDF]

open access: yesProceedings of the American Mathematical Society, 2005
We initiate a study of topological orthoalgebras (TOAs), concentrating on the compact case. Examples of TOAs include topological orthomodular lattices, and also the projection lattice of a Hilbert space. As the latter example illustrates, a lattice-ordered TOA need not be a topological lattice.
openaire   +3 more sources

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski   +59 more
wiley   +1 more source

Utility of Computed Tomography Surveillance of Asymptomatic Infection in Children and Young Adults Before Allogeneic Hematopoietic Stem Cell Transplant

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Asymptomatic infection poses a significant risk for children undergoing hematopoietic stem cell transplantation (HSCT). Pre‐transplant surveillance computed tomography (CT) is commonly used to identify occult infection, though its diagnostic yield remains uncertain.
Tyler Obermark   +9 more
wiley   +1 more source

Certain Notions of Neutrosophic Topological K-Algebras

open access: yesMathematics, 2018
The concept of neutrosophic set from philosophical point of view was first considered by Smarandache. A single-valued neutrosophic set is a subclass of the neutrosophic set from a scientific and engineering point of view and an extension of ...
Muhammad Akram   +3 more
doaj   +1 more source

Compact cinematics

open access: yesNECSUS, 2016
In this essay we propose the term ‘compact cinematics’ for the study of the various compact, short, compressed, and miniature (audio)visual artifacts, forms, and practices that circulate in our everyday multimedia environment across technologies, genres, and disciplines.
Hesselberth, P., Poulaki, M.
openaire   +4 more sources

Home - About - Disclaimer - Privacy