Zobrazeno 1 - 10
of 20
pro vyhledávání: '"G. R. Cirmi"'
Publikováno v:
Didattica della Matematica, Iss 9, Pp 127-138 (2021)
In questo lavoro si presenta un modulo didattico dal titolo La Lingua Matematica, rivolto a studenti del primo anno di scuola secondaria di secondo grado.Il modulo è stato presentato in classi di Liceo Matematico, ma può essere proposto anche in al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62a3f33eac193aa9e7d36d5cdf43bfaa
https://www.journals-dfa.supsi.ch/index.php/rivistaddm/article/view/123
https://www.journals-dfa.supsi.ch/index.php/rivistaddm/article/view/123
In this paper we prove the existence and uniqueness of the solution to the one and the two obstacles problems associated with a linear elliptic operator, which is non coercive due to the presence of a convection term. We show that the operator is wea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a73e3be2edfe16a338fa2a59a691399
https://hdl.handle.net/20.500.11769/531117
https://hdl.handle.net/20.500.11769/531117
This paper deals with the existence of bounded and locally Hölder continuous weak solutions of a homogeneous Dirichlet problem related to a class of nonlinear fourth-order elliptic equations with strengthened degenerate ellipticity condition.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19efc59a5eea495c608918d2c20cfc0a
https://hdl.handle.net/20.500.11769/532837
https://hdl.handle.net/20.500.11769/532837
We study the existence of a weak solution u of the following nonlinear vectorial Dirichlet problem { u ∈ W 0 1 , 2 ( Ω , R N ) − ∑ i = 1 n D i A i ν ( x , u , D u ) = − ∑ i = 1 n D i ( ∑ j = 1 N E i ν j ( x ) u j ) + f ν ( x ) x ∈
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35de33980ab32fdea97d1b70c67e5e53
http://hdl.handle.net/20.500.11769/461381
http://hdl.handle.net/20.500.11769/461381
Publikováno v:
Advances in Nonlinear Analysis, Vol 9, Iss 1, Pp 1333-1350 (2019)
We consider the following boundary value problem $$\begin{array}{} \displaystyle \begin{cases} - {\rm div}{[M(x)\nabla u - E(x) u]} =f(x) & \text{in}~~ {\it\Omega} \\ u =0 & \text{on}~~ \partial{\it\Omega}, \end{cases} \end{array}$$ where Ω is a bou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68adbb2cdb8c09ff33292645d1d55133
http://hdl.handle.net/20.500.11769/359823
http://hdl.handle.net/20.500.11769/359823
In this paper we study the existence and regularity of solutions to some nonlinear boundary value problems with non coercive drift. The model problem is 1 $$\begin{aligned} \left\{ \begin{array}{ll} -\mathrm{div}(A(x)\nabla u|\nabla u|^{p-2} )=E(x)\n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e4285bec68e99939f0b63fa4ce67c85
http://hdl.handle.net/20.500.11769/464165
http://hdl.handle.net/20.500.11769/464165
Publikováno v:
Milan Journal of Mathematics. 86:97-104
We give a self-contained and simple approach to prove the existence and uniqueness of a weak solution to a linear elliptic boundary value problem with drift in divergence form. Taking advantage of the method of continuity, we also deal with the relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::884e2076b23fb9afc23a1ef7b5d239cb
https://doi.org/10.1007/s00032-018-0281-5
https://doi.org/10.1007/s00032-018-0281-5
Publikováno v:
Mathematical Methods in the Applied Sciences. 41:261-269
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dad8161b82e41ee709bcb0017fe986c1
https://doi.org/10.1002/mma.4609
https://doi.org/10.1002/mma.4609
We consider the following prototype problem: $$\begin{aligned} \left\{ \begin{aligned}&-\Delta u + M \frac{|\nabla u|^2}{u^\theta }=f&\hbox { in}\ \varOmega \\&u=0&\hbox { on}\ \partial \varOmega \end{aligned}\right. \end{aligned}$$ and we study the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2c9096c562371dbf93508e546cab502
http://hdl.handle.net/20.500.11769/20471
http://hdl.handle.net/20.500.11769/20471