Some topological and geometric properties of generalized Euler sequence space

Mathematica Slovaca - Tập 60 Số 3 - Trang 385-398 - 2010
Emrah Evren Kara1, Mahpeyker Öztürk1, Metin Başarır1
1Department of Mathematics, Sakarya University, 54187, Sakarya, Turkey

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Abstract In this paper, we introduce the Euler sequence space e r(p) of nonabsolute type and prove that the spaces e r(p) and l(p) are linearly isomorphic. Besides this, we compute the α-, β- and γ-duals of the space e r(p). The results proved herein are analogous to those in [ALTAY, B.—BASŠAR, F.: On the paranormed Riesz sequence spaces of non-absolute type, Southeast Asian Bull. Math. 26 (2002), 701–715] for the Riesz sequence space r q(p). Finally, we define a modular on the Euler sequence space e r(p) and consider it equipped with the Luxemburg norm. We give some relationships between the modular and Luxemburg norm on this space and show that the space e r(p) has property (H) but it is not rotund (R).

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