Results 21 to 30 of about 4,006,009 (283)

Hypercausal Linear Operators [PDF]

open access: yesSIAM Journal on Control and Optimization, 1984
Several different classes of hypercausal operators are useful in linear system theory. It is the purpose of this note to provide, for each pair of classes of hypercausal operators, necessary and sufficient conditions on the Hilbert resolution space to guarantee equality of the classes.
openaire   +2 more sources

Steady-State Analysis of a Flexible Markovian Queue with Server Breakdowns

open access: yesEntropy, 2019
A flexible single-server queueing system is considered in this paper. The server adapts to the system size by using a strategy where the service provided can be either single or bulk depending on some threshold level c.
Messaoud Bounkhel   +2 more
doaj   +1 more source

Fuzzy differential subordinations connected with the linear operator [PDF]

open access: yesMathematica Bohemica, 2021
We obtain several fuzzy differential subordinations by using a linear operator $\mathcal{I}_{m,\gamma}^{n,\alpha}f(z)=z+\sum\limits_{k=2}^{\infty}(1+\gamma( k-1))^nm^{\alpha}(m+k)^{-\alpha}a_kz^k$.
Sheza M. El-Deeb, Georgia I. Oros
doaj   +1 more source

Eigenvalue counting estimates for a class of linear spectral pencils with applications to zero modes [PDF]

open access: yes, 2012
Consider a linear spectral pencil of the form P(−i∇)− zQ(x), z ∈ C. If P−1 ∈ weak-Lp and Q ∈ Lp for some 1 < p
Elton, Daniel, Ta, Tri Ngoc
core   +4 more sources

Certain subclasses of analytic functions defined by a new general linear operator

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2018
Hypergeometric functions are of special interests among the complex analysts especially in looking at the properties and criteria of univalent. Hypergeometric functions have been around since 1900’s and have special applications according to their own ...
A.R.S. Juma, M. Darus
doaj   +1 more source

Linear Operator Inequality and Null Controllability with Vanishing Energy for Unbounded Control Systems [PDF]

open access: yes, 2013
We consider a linear boundary or point control system on a Hilbert space $H$ which is null controllable at some time $T_0 >0$. To every initial state $ y_0 \in H$ we associate the minimal ``energy'' needed to transfer $ y_0 $ to $ 0 $ in a time $ T \ge ...
Zabczyk, J.   +8 more
core   +1 more source

Topological methods on solvability, multiplicity and bifurcation of a nonlinear fractional boundary value problem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper, we first prove new properties of the $(a, q)$-stably solvable maps for a class of decomposable operators in the form of $LF$, where $L$ is a bounded linear operator and $F$ is nonlinear.
Wenying Feng
doaj   +1 more source

Note on Linear Operators. [PDF]

open access: yescrll, 1960
Introduction. This note answers two questions. 1.) If X and Y are Banach spaces, with Y inseparable, does it ever happen that all the bounded operators from X into Y are compact? 2.) If X and Y are Banach spaces, consider the following subset of the space of bounded operators from X into Y with the uniform topology: the operators (compact operators ...
openaire   +1 more source

Complexity of Linear Operators

open access: yesElectron. Colloquium Comput. Complex., 2018
Let $A \in \{0,1\}^{n \times n}$ be a matrix with $z$ zeroes and $u$ ones and $x$ be an $n$-dimensional vector of formal variables over a semigroup $(S, \circ)$. How many semigroup operations are required to compute the linear operator $Ax$? As we observe in this paper, this problem contains as a special case the well-known range queries problem and ...
Alexander S. Kulikov   +3 more
openaire   +5 more sources

Compressive identification of linear operators [PDF]

open access: yes2011 IEEE International Symposium on Information Theory Proceedings, 2011
To be presented at IEEE Int. Symp. Inf.
Reinhard Heckel, Helmut Bölcskei
openaire   +3 more sources

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