Results 81 to 90 of about 3,669 (222)
Problems on Hyperspace Retractions
, 2002 Unsolved problems concerning hyperspace retractions for curves, dispersed in the literature, are recalled and discussed, and various interrelations between them are indicated.
Charatonik, W. J., Charatonik, J. J.
core
Baire Spaces and Hyperspace Topologies [PDF]
, 1996 Sufficient conditions for abstract (proximal) hit-and-miss hyperspace topologies and the Wisjman hyperspace topology, respectively are given to be Baire spaces, thus extending results of [MC],[B1],[C].
Zsilinszky, Laszlo +1 more
core
On Fixed-Point Free Selections and Multivalued Maps on R
Applied General Topology, 2015 We study fixed-point free multivalued selfmaps on R as well as continuous fixed-point free selection of multivalued selfmaps on R. We justify necessary conditions in some earlier results and motivate some new interesting questions.
Dennis Burke, Raushan Buzyakova
doaj +1 more source
Real‐Time Detection and Prevention of DoS Attack in Unmanned Marine Vehicles Using Machine Learning
SECURITY AND PRIVACY, Volume 9, Issue 2, March/April 2026.ABSTRACT Unmanned marine vehicles (UMVs) are one of the most crucial components of the underwater communication and surveillance system in the marine and oceanographic environment. This research introduces a novel approach to stabilize the connection in an unstable underwater environment by inheriting features of communication velocities.
Noman Ali +8 more
wiley +1 more source
On the n-fold hyperspace suspension of continua
, 2004 In 1979 Sam B. Nadler Jr, defined the Hyperspace Suspension of a continuum.
Sergio Macı́as, Macı́as, Sergio
core +1 more source
Hyperspaces of Superparacompact Spaces and Continuous Maps
Universal Journal of Mathematics and Applications, 2019 In the present paper we establish that the space $\exp_\beta X$ of compact subsets of a Tychonoff space $X$ is superparacompact iff $X$ is so.
Adilbek Zaitov +1 more
doaj +1 more source
Primitive icosahedral quasicrystals in ZnMgLi(Dy, Ho, Er, Tm) systems
Acta Crystallographica Section A, Volume 82, Issue 2, Page 108-117, March 2026.The study introduces new primitive icosahedral quasicrystals in Zn–Mg–Li–(Dy, Ho, Er, Tm) systems. Quasicrystals are studied with an X‐ray diffraction technique resolving the local atomic structure.New quasicrystals with rare‐earth elements and Li are synthesized with the self‐flux method. The starting composition involves 62.8 at.% Zn, 28.6 at.% Mg, 3.
Ireneusz Buganski +6 more
wiley +1 more source
Topological classification of the hyperspaces of polyhedral convex sets in normed spaces [PDF]
Математичні Студії, 2013 We prove that, for a normed space $X$ of dimension $dim(X)ge2$ the space $PConv_H(X)$ of non-empty polyhedral convexsubsets of $X$ endowed with the Hausdorff metric ishomeomorphic to the topological sum ${0}oplus |X^*|imes(IRoplus (IRimesarIR_+)oplus ...
I. V. Hetman
doaj
Can A "Hyperspace" Really Exist?
, 1999 The idea of "hyperspace" is suggested as a possible approach to faster-than-light (FTL) motion. A brief summary of a 1986 study on the Euclidean representation of space-time by the author is presented.
Zampino, Edward J.
core
T0 *-compactification in the hyperspace [PDF]
, 2012 A *-compactification of a T0 quasi-uniform space (X,U) is a compact T0 quasi-uniform space (Y,V) that has a T(V∨V−1)-dense subspace quasi-isomorphic to (X,U).
Romaguera Bonilla, Salvador +8 more
core +1 more source