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Fixed point results for multivalued contractions on ordered gauge spaces

100%

Petruşel G.

Open Mathematics

2009

tom 7

nr 3

520-528

The purpose of this article is to present fixed point results for multivalued E ≤-contractions on ordered complete gauge space. Our theorems generalize and extend some recent results given in M. Frigon [7], S. Reich [12], I.A. Rus and A. Petruşel [15] and I.A. Rus et al. [16].

Multivalued fractals in b-metric spaces

75%

Boriceanu M., Bota M., Petruşel A.

Open Mathematics

2010

tom 8

nr 2

367-377

Fractals and multivalued fractals play an important role in biology, quantum mechanics, computer graphics, dynamical systems, astronomy and astrophysics, geophysics, etc. Especially, there are important consequences of the iterated function (or multifunction) systems theory in several topics of applied sciences. It is known that examples of fractals and multivalued fractals are coming from fixed point theory for single-valued and multivalued operators, via the so-called fractal and multi-fractal operators. On the other hand, the most common setting for the study of fractals and multi-fractals is the case of operators on complete or compact metric spaces. The purpose of this paper is to extend the study of fractal operator theory for multivalued operators on complete b-metric spaces.

Ograniczanie wyników

2 Open Mathematics

1 Boriceanu M.

1 Bota M.

1 Petruşel A.

1 Petruşel G.

1 2010

1 2009

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Fixed point results for multivalued contractions on ordered gauge spaces

Multivalued fractals in b-metric spaces