Results 21 to 30 of about 1,117 (243)

Extensions of symmetric operators I: The inner characteristic function case

Concrete Operators, 2015
Given a symmetric linear transformation on a Hilbert space, a natural problem to consider is the characterization of its set of symmetric extensions. This problem is equivalent to the study of the partial isometric extensions of a fixed partial isometry.
Martin R.T.W.
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Computational Models of Certain Hyperspaces of Quasi-metric Spaces [PDF]

Logical Methods in Computer Science, 2011
In this paper, for a given sequentially Yoneda-complete T_1 quasi-metric space (X,d), the domain theoretic models of the hyperspace K_0(X) of nonempty compact subsets of (X,d) are studied.
Massoud Pourmahdian, Mahdi Ali-Akbari
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A Physically Consistent Model for Forced Torsional Vibrations of Automotive Driveshafts

Computation, 2022
The aim of this research was to design a physically consistent model for the forced torsional vibrations of automotive driveshafts that considered aspects of the following phenomena: excitation due to the transmission of the combustion engine through the
Mihai Bugaru, Andrei Vasile
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Restricted p-Isometry Properties of Partially Sparse Signal Recovery

Discrete Dynamics in Nature and Society, 2013
By generalizing the restricted p-isometry property to the partially sparse signal recovery problem, we give a sufficient condition for exactly recovering partially sparse signal via the partial lp minimization (truncated lp minimization) problem with p ...
Haini Bi, Lingchen Kong, Naihua Xiu
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On A Novel Topological Space Based On Partially Ordered Ring Of Weak Fuzzy Complex Numbers and Its Relation With The Partially Ordered Neutrosophic Ring of Real Numbers [PDF]

Neutrosophic Sets and Systems
This work is dedicated to studying for the first time a novel topological space generated by weak fuzzy complex intervals based on the partial ordered ring structure of weak fuzzy complex numbers, where we build a topology structure over these intervals.
Raed Hatamleh
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Allometric growth in the skull of Tylosaurus proriger (Squamata: Mosasauridae) and its taxonomic implications

Vertebrate Anatomy, Morphology, Palaeontology, 2018
Ontogeny—the growth and development of an organism—is among the more poorly understood aspects of the life history of mosasaurs, largely owing to a dearth of fossil material from young individuals.
Robert F. Stewart, Jordan Mallon
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PARTIAL ISOMETRIES OF A SUB-RIEMANNIAN MANIFOLD [PDF]

International Journal of Mathematics, 2012
In this article, we obtain the following generalization of isometric C1-immersion theorem of Nash and Kuiper. Let M be a smooth manifold of dimension m and H a rank k subbundle of the tangent bundle TM with a Riemannian metric gH. Then the pair (H, gH) defines a sub-Riemannian structure on M.
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On Gradings of the Operator Algebra Generated by Mapping and Multipliers [PDF]

Учёные записки Казанского университета: Серия Физико-математические науки, 2015
The operator algebra generated by mapping on a countable set and multipliers is considered. The defined mapping induces a family of partial isometries satisfying some relations.
E.V. Patrin
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Factorization of k-quasihyponormal operators

International Journal of Mathematics and Mathematical Sciences, 1991
Let A be the class of all operators T on a Hilbert space H such that R(T*kT), the range space of T*KT, is contained in R(T*k+1), for a positive integer k.
S. C. Arora, J. K. Thukral
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ON SOME APPLICATIONS OF ISOMETRICITY OF FUNCTIONAL SPACES IN APPLIED MATHEMATICS

Міжнародний науково-технічний журнал "Проблеми керування та інформатики", 2020
Problems of computational mathematics are directly connected with an implementation of mathematical models in conditions of limited initial information.
Д.М. Бушев
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