#### Filter Results:

- Full text PDF available (11)

#### Publication Year

2004

2017

- This year (1)
- Last 5 years (4)
- Last 10 years (11)

#### Publication Type

#### Co-author

#### Journals and Conferences

#### Key Phrases

Learn More

- António M. Caetano, Amiran Gogatishvili, Bohumír Opic
- Journal of Approximation Theory
- 2008

The concept of local growth envelope (ELGA, u) of the quasi-normed function space A is applied to the Besov spaces of generalized smoothness B p,q (Rn).

- JENAER SCHRIFTEN, MATHEMATIK UND INFORMATIK, António M. Caetano, Dorothee D. Haroske
- 2004

Continuity envelopes for the spaces of generalised smoothness B (s,Ψ) pq (R) and F (s,Ψ) pq (R) are studied in the so-called supercritical case s = 1+n/p, paralleling recent developments for a corresponding limiting case for local growth envelopes of spaces of such a type. In addition, the power of the concept is used in proving conditions for some… (More)

- António M. Caetano, Amiran Gogatishvili, Bohumı́r Opic
- 2009

We prove sharp embeddings of Besov spaces B p,r involving only a slowly varying smoothness b into Lorentz-Karamata spaces. As consequences of our results, we obtain the growth envelope of the Besov space B p,r. Mathematics Subject Classification 2000: 46E35, 46E30, 26D10.

Editor: M. Mumford Departing from the functional leadership model, we propose a team leadership training model as a way to improve the performance of leadership functions and foster team effectiveness. Based on a longitudinal quasi-experimental study involving ninety 6-person teams, 45 trained leaderswere compared to 45 untrained leaders at two points in… (More)

- António M. Caetano, Amiran Gogatishvili, Bohumír Opic
- Journal of Approximation Theory
- 2011

We characterize local embeddings of Besov spaces B p,r involving only a slowly varying smoothness b into classical Lorentz spaces. These results are applied to establish sharp local embeddings of Besov spaces in question into Lorentz-Karamata spaces. As consequence of these results, we are able to determine growth envelopes of spaces B p,r and to show that… (More)

- António Caetano, Ana Moura Santos, +19 authors Sergey E. Mikhailov
- 2005

ing approximation methods Pedro A. Santos Instituto Superior Técnico, Portugal <pasantos@math.ist.utl.pt> Let L(H) be the C∗-algebra of all bounded linear operators acting on the Hilbert space H and A ∈ L(H) be invertible. Then a sequence (An) ⊂ L(H) tending in the norm to A has the property that there is a n0 such that the operators An, n > n0 are… (More)

This work contains examples of regular 2D problems of the Calculus of Variations which exhibit stable Lavrentiev phenomenon , under different types of boundary conditions.

- António M. Caetano, Amiran Gogatishvili, Bohumír Opic
- Journal of Approximation Theory
- 2012

- Rita Rueff-Lopes, António Caetano
- Psychological reports
- 2012

This manuscript examined the psychometric properties and factor structure of the emotional contagion scale in a Portuguese sample. The original scale was first given to a sample of 1445 individuals to verify its internal consistency. Both exploratory and confirmatory factor analyses were performed. Results suggested that the data from the emotional… (More)