Results 41 to 50 of about 977,904 (291)

Deriving Auslander's formula

open access: yesDocumenta Mathematica, 2015
Auslander's formula shows that any abelian category \mathsf C is equivalent to the category of coherent functors on \mathsf C modulo the Serre subcategory of all ...
openaire   +3 more sources

Quantum Information Entropy for a Hyperbolic Double Well Potential in the Fractional Schrödinger Equation

open access: yesEntropy, 2023
In this study, we investigate the position and momentum Shannon entropy, denoted as Sx and Sp, respectively, in the context of the fractional Schrödinger equation (FSE) for a hyperbolic double well potential (HDWP).
R. Santana-Carrillo   +3 more
doaj   +1 more source

Formulae for the Derivatives of Heat Semigroups

open access: yesJournal of Functional Analysis, 1994
We use a basic martingale method to show a differentiation formula for the derivatives $$d(P_tf)(x_0)(v_0)={1\over t} E f(x_t) \int_0^t \langle Y(x_s)(v_s),dB_t\rangle_{R^m}.$$ These are proved first on $R^n$, then on manifolds. Afterwards for solutions of heat equations on differential forms, and a second order formula.
Elworthy, K.D., Li, X.M.
openaire   +2 more sources

Caputo-Fabrizio approach to numerical fractional derivatives

open access: yesBibechana, 2023
Fractional calculus is an essential tool in every area of science today. This work gives the quadratic interpolation-based L1-2 formula for the Caputo-Fabrizio derivative, a numerical technique for approximating the fractional derivative.
Shankar Pariyar, Jeevan Kafle
doaj   +3 more sources

Derivation of Characteristic Formulae

open access: yesElectronic Notes in Theoretical Computer Science, 1998
AbstractThis paper shows how modal mu-calculus formulae characterizing finite-state processes up to strong or weak bisimulation can be derived directly from the well-known greatest fixpoint characterizations of the bisimulation relations. Our derivation simplifies earlier proofs for the strong bisimulation case and, by virtue of derivation, immediately
openaire   +1 more source

Derivative Formula for Singular McKean-Vlasov SDEs [PDF]

open access: yes, 2023
The Bismut formula is established for the intrinsic derivative of singular McKean-Vlasov SDEs, where the noise coefficient belongs to a local Sobolev space, and the drift contains a locally integrable time-space term as well as a time-space-distribution ...
Wang, Feng-Yu
core   +1 more source

Homotopy Perturbation ρ-Laplace Transform Method and Its Application to the Fractional Diffusion Equation and the Fractional Diffusion-Reaction Equation

open access: yesFractal and Fractional, 2019
In this paper, the approximate solutions of the fractional diffusion equations described by the fractional derivative operator were investigated. The homotopy perturbation Laplace transform method of getting the approximate solution was proposed.
Ndolane Sene, Aliou Niang Fall
doaj   +1 more source

A Survey on Recent Results on Lyapunov-Type Inequalities for Fractional Differential Equations

open access: yesFractal and Fractional, 2022
This survey paper is concerned with some of the most recent results on Lyapunov-type inequalities for fractional boundary value problems involving a variety of fractional derivative operators and boundary conditions.
Sotiris K. Ntouyas   +2 more
doaj   +1 more source

Quadrature formulas using derivatives [PDF]

open access: yesMathematics of Computation, 1965
1. H. MINEUR, Techniques de Calcul Num~rique d l'Usage des Mathe'maticiens, Astronomes, Physiciens et Ingenieurs. Suivi de Quatre Notes Par: Mme. Henri Berthod-Zaborowski, Jean Bouzitat, et Marcel Mayot, B6ranger, Paris, 1952. 2. M. ABRAMOWITZ & I.
openaire   +2 more sources

Numerical Scheme for Solving Time–Space Vibration String Equation of Fractional Derivative

open access: yesMathematics, 2020
In this paper, we present a numerical scheme and alternating direction implicit scheme for the one-dimensional time–space fractional vibration equation.
Asmaa M. Elsayed, Viktor N. Orlov
doaj   +1 more source

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