Providencia, João da

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Providencia, João da

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https://orcid.org/0000-0003-4215-3067

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Results 1-67 of 67 (Search time: 0.002 seconds).

	Issue Date	Title	Author(s)	Type	Access
1	Mar-2013	An algorithm for constructing a pseudo-Jacobi matrix from given spectral data	Bebiano, Natália ; Furtado, Susana ; Providência, João da	article	closedAccess
2	1-Apr-2015	An inverse indefinite numerical range problem	Bebiano, Natália ; Providência, João da ; Nata, Ana ; Providência, J. P. da.	article	embargoedAccess
3	1990	Application of the thermal boson expansion to the Heisenberg antiferromagnet MnF2	Brajczewska, Marta ; Fiolhais, Carlos ; Providência, João da	article	openAccess
4	1987	Application of the thermal boson expansion to the Heisenberg ferromagnets EuO and EuS	Fiolhais, Carlos ; Brajczewska, Marta ; Providência, João da	article	openAccess
5	2022	Approximations for the von Neumann and Rényi entropies of graphs with circulant type Laplacians	Bebiano, Natália ; Providência, João da ; Xu, Wei-Ru	article	openAccess
6	2009	The boundary of the Krein space tracial numerical range, an algebraic approach and a numerical algorithm	Bebiano, N. ; Nakazato, H. ; Nata, A. ; Providência, J. da	preprint	openAccess
7	2009	Classes of non-Hermitian operators with real eigenvalues	Bebiano, Natália ; Providência, J. da ; Providência, João P. da	preprint	openAccess
8	1989	Collective and intrinsic degrees of freedom in the Heisenberg ferromagnet.	Providência, João da ; Brajczewska, Marta ; Fiolhais, Carlos	article	openAccess
9	1-Jan-2015	Computing the numerical range of Krein space operators	Bebiano, Natália ; Providência, João da ; Nata, Ana ; Providência, J. P. da.	article	embargoedAccess
10	2009	Convexity of the Krein space tracial numerical range and Morse theory	Nakazato, Hiroshi ; Bebiano, Natália ; Providência, João da	preprint	openAccess
11	2017	Determinantal inequalities for J-accretive dissipative matrices	Bebiano, Natália ; Providência, João da	article	embargoedAccess
12	1993	Discontinuous phase transition obtained with the thermal boson expansion	Fiolhais, Carlos ; Brajczewska, Marta ; Providência, João da	article	openAccess
13	2007	Dynamical chiral symmetry breaking by a magnetic field and multi-quark interactions	Osipov, A. A. ; Hiller, B. ; Blin, A. H. ; Providência, J. da	article	openAccess
14	2007	Effects of eight-quark interactions on the hadronic vacuum and mass spectra of light mesons	Osipov, A. A. ; Hiller, B. ; Blin, A. H. ; Providência, J. da	article	openAccess
15	1989	Equation of collective submanifold with mixed states	Yamamura, Masatoshi ; Providência, João da ; Kuriyama, Atsushi ; Fiolhais, Carlos	article	openAccess
16	2006	Exact solutions for the LMG model Hamiltonian based on the Bethe ansatz	Morita, Hiroyuki ; Ohnishi, Hiromasa ; Providência, João da ; Nishiyama, Seiya	article	openAccess
17	1979	Ferromagnetic by the generator coordinate method	Fiolhais, Carlos ; Providência, João P. ; Urbano, José Nuno	article	openAccess
18	Apr-2016	A fiedler-type theorem for the determinant of J-positive matrices	Bebiano, Natália ; Providência, João da	article	embargoedAccess
19	2017	Fields of values of linear pencils and spectral inclusion regions	Bebiano, Natália ; Providência, João da ; Nata, Ana ; Providência, J. P. da.	article	embargoedAccess
20	1998	Finite Temperature Effects in the NonintegrableSU(3) Lipkin Model	Terra, M. O. ; Nemes, M. C. ; Providência, C. da ; Providência, J. da	article	openAccess
21	2008	Flat portions on the boundary of the indefinite numerical range of 3×3 matrices	Bebiano, N. ; Providência, J. da ; Teixeira, R.	article	openAccess
22	2007	Geometry of the numerical range of Krein space operators	Bebiano, N. ; Providência, J. da ; Teixeira, R.	preprint	openAccess
23	31-Oct-2018	Hybrid stars from the NJL model with a tensor-interaction	Matsuoka, H. ; Tsue, Y. ; Providencia, J. ; Providencia, C. ; Yamamura, M.	article	openAccess
24	12-Sep-2016	Implications of losing Hermiticity in quantum mechanics	Bebiano, Natália ; Providência, João da	article	embargoedAccess
25	2005	Inequalities for J-Hermitian matrices	Bebiano, N. ; Nakazato, H. ; Providência, J. da ; Lemos, R. ; Soares, G.	article	openAccess
26	2005	Inequalities for quantum relative entropy	Bebiano, N. ; Lemos, R. ; Providência, J. da	article	openAccess
27	27-Nov-2012	Interplay between Spin Polarization and Color Superconductivity in High Density Quark Matter	Tsue, Yasuhiko ; Providencia, João da ; Providência, Constança ; Yamamura, M. ; Bohr, Henrik	article	openAccess
28	2008	The J-numerical range of a J-Hermitian matrix and related inequalities	Nakazato, Hiroshi ; Bebiano, Natália ; Providência, João da	article	openAccess
29	2000	Long-wave fluctuations of the two-dimensional Heisenberg antiferromagnet	Belinicher, Victor ; Providência, João da	article	openAccess
30	2007	Lowering the critical temperature with eight-quark interactions	Osipov, A. A. ; Hiller, B. ; Moreira, J. ; Blin, A. H. ; Providência, J. da	article	openAccess
31	1985	Mean field theories with mixed states	Providência, João da ; Fiolhais, Carlos	article	openAccess
32	4-Mar-1985	Mean-filed theories with mixed states and associated boson expansions	Providência, João da ; Fiolhais, C.	article	openAccess
33	2002	Microscopic Theory of the Two-Dimensional Quantum Antiferromagnet in a Paramagnetic Phase	Belinicher, V. I. ; Providência, J. da	article	openAccess
34	2006	Multi-quark interactions with a globally stable vacuum	Osipov, A. A. ; Hiller, B. ; Providência, J. da	article	openAccess
35	6-Jan-2015	New boson realization of the Lipkin model obeying the su(2)-algebra	Tsue, Yasuhiko ; Providência, Constança ; Providencia, João da ; Yamamura, Masatoshi	article	openAccess
36	2017	A note on the Lipkin model in arbitrary fermion number	Tsue, Yasuhiko ; Providência, Constança ; Providência, João da ; Yamamura, Masatoshi	article	openAccess
37	1990	A note on thermal bosons	Providência, João da ; Fiolhais, Carlos	article	openAccess
38	2006	The numerical range of 2-dimensional Krein spaces operators	Nakazato, Hiroshi ; Bebiano, Natália ; Providência, João da	preprint	openAccess
39	2004	Numerical ranges of unbounded operators arising in quantum physics	Bebiano, N. ; Lemos, R. ; Providência, J. da	article	openAccess
40	2003	On generalized numerical ranges of operators on an indefinite inner product space	Bebiano, N. ; Lemos, R. ; Providência, J. da ; Soares, G.	preprint	openAccess
41	2007	On the corners of certain determinantal ranges	Kovačec, Alexander ; Bebiano, Natália ; Providência, João da	article	openAccess
42	2009	On the Courant-Fischer theory for Krein spaces	Bebiano, N. ; Nakazato, H. ; Providência, J. da	article	openAccess
43	2005	On the geometry of numerical ranges in spaces with an indefinite inner product	Bebiano, N. ; Lemos, R. ; Providência, J. da ; Soares, G.	article	openAccess
44	1990	On the random phase approximation based on the thermo field dynamics formalism	Yamamura, Masatoshi ; Providência, João da ; Kuriyama, Atsushi ; Fiolhais, Carlos	article	openAccess
45	2016	A possible framework of the Lipkin model obeying the SU(n) algebra in arbitrary fermion number. I: The SU(2) algebras extended from the conventional fermion pair and determination of the minimum weight states	Tsue, Yasuhiko ; Providência, Constança ; Providência, João da ; Yamamura, Masatoshi	article	openAccess
46	2016	A possible framework of the Lipkin model obeying the SU(n) algebra in arbitrary fermion number. II: Two subalgebras in the SU(n) Lipkin model and an approach to the construction of a linearly independent basis	Tsue, Yasuhiko ; Providência, Constança ; Providência, João da ; Yamamura, Masatoshi	article	openAccess
47	2017	A practical scheme for constructing the minimum-weight states of the su(n)-Lipkin model in arbitrary fermion number	Tsue, Yasuhiko ; Providência, Constança ; Providência, João da ; Yamamura, Masatoshi	article	openAccess
48	2008	Product of diagonal entries of the unitary orbit of a 3-by-3 normal matrix	Nakazato, Hiroshi ; Bebiano, Natália ; Providência, João da	article	openAccess
49	1-Nov-2016	Products of Laurent operators and fields of values	Bebiano, Natália ; Providência, João da	article	embargoedAccess
50	14-Jun-2013	A Pseudo su(1,1)-Algebraic Deformation of the Cooper-Pair in the su(2)-Algebraic Many-Fermion Model	Tsue, Yasuhiko ; Providência, Constança ; Providencia, João da ; Yamamura, Masatoshi	article	openAccess
51	6-Jul-2012	Quark-Hadron Phase-Transition in an Extended NJL Model with Scalar-Vector Interaction	Lee, Tong-Gyu; Tsue, Yasuhiko ; Providencia, João da ; Providência, Constança ; Yamamura, Masatoshi	article	openAccess
52	2014	Revisiting the inverse field of values problema	Bebiano, Natália ; Providência, João da ; Nata, Ana ; Providência, J. P. da.	article	embargoedAccess
53	22-Jan-2009	Self-Consistent-Field Method and $τ$-Functional Method on Group Manifold in Soliton Theory: a Review and New Results	Nishiyama, Seiya; Providencia, João da ; Providência, Constança ; Cordeiro, Flávio ; Komatsu, Takao	article	openAccess
54	1-Mar-2017	Spin polarization and color superconductivity in the Nambu–Jona-Lasinio model at finite temperature	Matsuoka, H. ; Tsue, Y. ; Providência, J. ; Providência, C. ; Yamamura, M.	article	openAccess
55	23-Sep-2014	Spin Polarization versus Color-Flavor-Locking in High Density Quark Matter	Tsue, Yasuhiko ; Providencia, João da ; Providência, Constança ; Yamamura, Masatoshi; Bohr, Henrik	article	openAccess
56	7-Jan-2016	Spin Polarized versus Chiral Condensate in Quark Matter at Finite Temperature and Density	Matsuoka, Hiroaki; Tsue, Yasuhiko; Providência, João da ; Providência, Constança ; Yamamura, Masatoshi; Bohr, Henrik	article	openAccess
57	3-Jul-2015	Spontaneous magnetization in high-density quark matter	Tsue, Yasuhiko ; Providencia, João da ; Providência, Constança ; Yamamura, Masatoshi ; Bohr, Henrik	article	openAccess
58	27-Mar-2018	Spontaneous magnetization under a pseudovector interaction between quarks in high density quark matter	Morimoto, Masatoshi ; Tsue, Yasuhiko ; Providência, João ; Providência, Constança ; Yamamura, Masatoshi	article	openAccess
59	2017	The characteristic polynomial of linear pencils of small size and the numerical range	Bebiano, Natália ; Providência, João da ; Esmaeili, F.	article	embargoedAccess
60	2016	The EMM and the spectral analysis of a non self-adjoint Hamiltonian on an infinite dimensional Hilbert space	Bebiano, Natália ; Providência, João da	article	embargoedAccess
61	1-Feb-2013	The numerical range of banded biperiodic Toeplitz operators	Bebiano, Natália ; Providência, João da ; Nata, Ana	article	embargoedAccess
62	1986	Thermal boson expansion for the Heisenberg ferromagnet	Brajczewska, Marta ; Fiolhais, Carlos ; Providência, João da	article	openAccess
63	1985	Variational derivation of mean field theories with mixed states	Providência, João da ; Fiolhais, Carlos	article	openAccess
64	1987	Variational formulation of the Vlasov equation	Providência, João da ; Fiolhais, Carlos	article	openAccess
65	1987	Variational principles in quantum statistical mechanics	Providência, João da ; Fiolhais, Carlos	article	openAccess
66	1988	Vlasov description of the collision between two slabs	Providência, João da ; Fiolhais, Carlos	article	openAccess
67	2013	What does drawing and sketching bring to the design process?	Providência, Paulo	article	openAccess

Providencia, João da

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