Results 11 to 20 of about 896,632 (275)

New properties of conformable derivative

open access: yesOpen Mathematics, 2015
Recently, the conformable derivative and its properties have been introduced. In this work we have investigated in more detail some new properties of this derivative and we have proved some useful related theorems.
Atangana Abdon   +2 more
doaj   +2 more sources

Partial derivative Nonlinear Global Pandemic Machine Learning prediction of COVID 19. [PDF]

open access: yesChaos Solitons Fractals, 2020
Kavadi DP   +3 more
europepmc   +2 more sources

Properties of power series of analytic in a bidisc functions of bounded $\mathbf{L}$-index in joint variables

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2017
We generalized some criteria of boundedness of $\mathbf{L}$-index in joint variables for analytic in a bidisc functions, where $\mathbf{L}(z)=(l_1(z_1,z_2),$ $l_{2}(z_1,z_2)),$ $l_j:\mathbb{D}^2\to \mathbb{R}_+$ is a continuous function, $j\in\{1,2\},$
A.I. Bandura, N.V. Petrechko
doaj   +1 more source

Symmetry Analysis of Initial and Boundary Value Problems for Fractional Differential Equations in Caputo sense [PDF]

open access: yes, 2019
In this work we study Lie symmetry analysis of initial and boundary value problems for partial differential equations (PDE) with Caputo fractional derivative.
Iskenderoglu, Gulistan, Kaya, Dogan
core   +2 more sources

Theorem on the differentiation of a composite function with a vector argument; pp. 195–200 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2010
The paper provides a theorem on the differentiation of a composite function with a vector argument. The theorem shows how the partial derivative of the total derivative of the composite function can be expressed through the total derivative of the ...
Vadim Kaparin, Ülle Kotta
doaj   +1 more source

On the derivative of the associated Legendre function of the first kind of integer order with respect to its degree [PDF]

open access: yes, 2009
In our recent works [R. Szmytkowski, J. Phys. A 39 (2006) 15147; corrigendum: 40 (2007) 7819; addendum: 40 (2007) 14887], we have investigated the derivative of the Legendre function of the first kind, $P_{\nu}(z)$, with respect to its degree $\nu$.
A.E. Jolliffe   +47 more
core   +4 more sources

Sensitivity and spatial resolution for electron-spin-resonance detection by magnetic resonance force microscopy [PDF]

open access: yes, 1996
The signal intensity of electron spin resonance in magnetic resonance force microscopy (MRFM) experiments employing periodic saturation of the electron spin magnetization is determined by four parameters: the rf field H1, the modulation level of the bias
Hammel, P. C., Roukes, M. L., Zhang, Z.
core   +1 more source

On Landau-Kolmogorov type inequalities for charges and their applications

open access: yesResearches in Mathematics, 2023
In this article we prove sharp Landau-Kolmogorov type inequalities on a class of charges defined on Lebesgue measurable subsets of a cone in $\mathbb{R}^d$, $d\geqslant 1$, that are absolutely continuous with respect to the Lebesgue measure.
V.F. Babenko   +3 more
doaj   +1 more source

Unintended consequences of imprecise Notation -- an example from mechanics [PDF]

open access: yes, 2012
We present a conundrum that results from the imprecise use of notation for partial derivatives. Taking an example from mechanics, we show that lack of proper care in representing partial derivatives in Lagrangian and Hamiltonian formulations ...
Asim Gangopadhyaya   +2 more
core   +3 more sources

Measurability of Partial Derivatives [PDF]

open access: yesProceedings of the American Mathematical Society, 1977
Let f be a real function defined in R n {R_n} . In this note we give a sufficient condition in order that the set of points where the partial derivative ∂ f / ∂ x i \partial f/\partial {x_i}
Marcus, Moshe, Mizel, Victor J.
openaire   +2 more sources

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