Zobrazeno 1 - 10
of 256
pro vyhledávání: '"Carlos Lizama"'
Publikováno v:
Latin American Journal of Central Banking, Vol 5, Iss 3, Pp 100125- (2024)
Households in emerging economies are subject to significant income risk and have low access to financial markets. Leveraging multiple administrative microdata sources, this paper documents significant heterogeneity in asset holdings, income, and inco
Externí odkaz:
https://doaj.org/article/5a87b6cf67e24019ad31afe0e793e5cf
Autor:
Pshtiwan Othman Mohammed, Carlos Lizama, Alina Alb Lupas, Eman Al-Sarairah, Mohamed Abdelwahed
Publikováno v:
Symmetry, Vol 16, Iss 8, p 991 (2024)
The present paper is dedicated to the examination of maximum and minimum results based on Green’s functions via delta fractional differences for a class of fractional boundary problems. For such a purpose, we built the corresponding Green’s funct
Externí odkaz:
https://doaj.org/article/41e4aa437fe64ba5ac512512578faa65
Publikováno v:
AIMS Mathematics, Vol 7, Iss 8, Pp 14444-14459 (2022)
In this article we propose an alternative formulation to model a thermal-optical coupled problem involving laser heating. We show that by using the Fractional Beer-Lambert Law (FBLL) instead of the Beer-Lambert Law (BLL) as the governing equation of
Externí odkaz:
https://doaj.org/article/bd121b744127406682c747054a79f06d
Autor:
Carlos Lizama, Marina Murillo-Arcila
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2021, Iss 81, Pp 1-18 (2021)
In this paper, we completely characterize, only in terms of the data, the well-posedness of a fourth order abstract evolution equation arising from the Moore–Gibson–Thomson equation with memory. This characterization is obtained in the scales of
Externí odkaz:
https://doaj.org/article/b2982bb955b743218a6a81f21ee90fac
Autor:
Jennifer Bravo, Carlos Lizama
Publikováno v:
Boundary Value Problems, Vol 2021, Iss 1, Pp 1-10 (2021)
Abstract We show that if A is a closed linear operator defined in a Banach space X and there exist t 0 ≥ 0 $t_{0} \geq 0$ and M > 0 $M>0$ such that { ( i m ) α } | m | > t 0 ⊂ ρ ( A ) $\{(im)^{\alpha }\}_{|m|> t_{0}} \subset \rho (A)$ , the res
Externí odkaz:
https://doaj.org/article/b3c2993343fe4073af5a265b21662a6b
Publikováno v:
Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-32 (2021)
Abstract We give representations for solutions of time-fractional differential equations that involve operators on Lebesgue spaces of sequences defined by discrete convolutions involving kernels through the discrete Fourier transform. We consider fin
Externí odkaz:
https://doaj.org/article/51d55b1665d24fca9923f4f60c5e2b60
Autor:
Carlos Lizama, Marina Murillo-Arcila
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-10 (2020)
Abstract We consider the maximal regularity problem for a PDE of linear acoustics, named the Van Wijngaarden–Eringen equation, that models the propagation of linear acoustic waves in isothermal bubbly liquids, wherein the bubbles are of uniform rad
Externí odkaz:
https://doaj.org/article/280b7015a3bb4501a2638b5c2879950e
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2021, Iss 5, Pp 1-20 (2020)
In this paper, we prove existence and uniqueness of solutions of Volterra–Stieltjes integral equations using the Henstock–Kurzweil integral. Also, we prove that these equations encompass impulsive Volterra–Stieltjes integral equations and prove
Externí odkaz:
https://doaj.org/article/97de33b3acf4457499194385a95d1551
Autor:
Jennifer Bravo, Carlos Lizama
Publikováno v:
Mathematics, Vol 10, Iss 19, p 3540 (2022)
Given an injective closed linear operator A defined in a Banach space X, and writing CFDtα the Caputo–Fabrizio fractional derivative of order α∈(0,1), we show that the unique solution of the abstract Cauchy problem (∗)CFDtαu(t)=Au(t)+f(t),t
Externí odkaz:
https://doaj.org/article/e0715847e3044023b3077dd02fe387ca
Publikováno v:
Advances in Difference Equations, Vol 2019, Iss 1, Pp 1-29 (2019)
Abstract We prove the existence and uniqueness of a weighted pseudo asymptotically mild solution to the following class of abstract semilinear difference equations: u(n+1)=A∑k=−∞na(n−k)u(k+1)+∑k=−∞nb(n−k)f(k,u(k)),n∈Z, $$ u(n+1)= A
Externí odkaz:
https://doaj.org/article/bfed763bd73648419d2a8a45c3b2cffe