Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Patrizia Di Gironimo"'
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7902 (2024)
In this article, we study some new properties of twin primes and algorithms for their generation. We find the necessary conditions to generate a pair of twins. These conditions seem to indicate that the conjecture is true, namely, there are infinitel
Externí odkaz:
https://doaj.org/article/0e1c1320fdf84d11af9693442b85157d
Autor:
Patrizia Di Gironimo, Salvatore Leonardi, Francesco Leonetti, Marta Macrì, Pier Vincenzo Petricca
Publikováno v:
Mathematics in Engineering, Vol 5, Iss 3, Pp 1-23 (2023)
We prove the existence of a solution to a quasilinear system of degenerate equations, when the datum is in a Marcinkiewicz space. The main assumption asks the off-diagonal coefficients to have support in the union of a geometric progression of square
Externí odkaz:
https://doaj.org/article/c9b9cf3e25a545aba57172e8a4b075ba
Autor:
Patrizia Di Gironimo
Publikováno v:
Mathematics, Vol 12, Iss 12, p 1860 (2024)
In this paper, we study a noncoercive nonlinear elliptic operator with a drift term in an unbounded domain. The singular first-order term grows like |E(x)||∇u|, where E(x) is a vector field belonging to a suitable Morrey-type space. Our operator ar
Externí odkaz:
https://doaj.org/article/3b4e1f71adaa41adabbe6baaac2d9db1
Publikováno v:
IEEE Access, Vol 8, Pp 115109-115122 (2020)
When we try to solve new or known problems to which we want to give new solutions, we create new knowledge and realize new discoveries. To date, the scientific methods have used the probability in order to analyze problems, make inference and build f
Externí odkaz:
https://doaj.org/article/73a411b99393432194a075ce0fa76be4
Publikováno v:
Mathematics, Vol 8, Iss 8, p 1203 (2020)
A suitable replacement model for random lifetimes is extended to the context of past lifetimes. At a fixed time u an item is planned to be replaced by another one having the same age but a different lifetime distribution. We investigate the past life
Externí odkaz:
https://doaj.org/article/59a3eb90c3eb4089a01bded6e74f3660
Publikováno v:
International Journal of Differential Equations, Vol 2018 (2018)
We prove some uniqueness results for the solution of two kinds of Dirichlet boundary value problems for second- and fourth-order linear elliptic differential equations with discontinuous coefficients in polyhedral angles, in weighted Sobolev spaces.
Externí odkaz:
https://doaj.org/article/31a30f54d2284bc1b95ef081c76b86ac
Publikováno v:
Mathematics, Vol 6, Iss 10, p 204 (2018)
We consider a suitable replacement model for random lifetimes, in which at a fixed time an item is replaced by another one having the same age but different lifetime distribution. We focus first on stochastic comparisons between the involved random l
Externí odkaz:
https://doaj.org/article/fd8ad743fb5043a2a5b10a326f1a57d4
Publikováno v:
Rendiconti Lincei - Matematica e Applicazioni. 33:139-159
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86fcb1cf4fad74c6a0136f1bd0ea0b43
https://doi.org/10.4171/rlm/967
https://doi.org/10.4171/rlm/967
Autor:
Patrizia Di Gironimo
Publikováno v:
Journal of Interdisciplinary Mathematics. 23:1109-1120
We consider the Dirichlet boundary value problem for a linear elliptic operator with discontinuous coefficients in unbounded domains. We prove the existence and uniqueness of solution in weighted S...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35026783f6436495f17816f633207ebc
https://doi.org/10.1080/09720502.2020.1732050
https://doi.org/10.1080/09720502.2020.1732050
Autor:
Patrizia Di Gironimo, Flavia Giannetti
Publikováno v:
Banach Journal of Mathematical Analysis. 14:1670-1691
We deal with existence and regularity for weak solutions to Dirichlet problems of the type $$\begin{aligned} \left\{ \begin{array}{ll} - \mathrm{div} (A(x)Xu) +b(x)Xu + c(x)u=f\quad \hbox {in} \; \varOmega \\ \\ u=0 \quad \quad \hbox {on} \; \partial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb0332f490321dbf1f304febe508c1d7
https://doi.org/10.1007/s43037-020-00069-8
https://doi.org/10.1007/s43037-020-00069-8