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#### Regularly (I_2, I)-convergence and regularly (I_2, I)-Cauchy double sequences of fuzzy numbers

(2013)

In this paper, we introduce the notions of regularly, (I_2,I)-convergence and regularly, (I_2,I)-Cauchy double sequence of fuzzy numbers. Also, we study some properties of these concepts.

#### I_2-Cauchy double sequences of fuzzy numbers

(2013)

In this paper, we introduce the concepts of I2-Cauchy, I∗2-Cauchy double sequence of fuzzy numbers and study their some properties and relations, where I2 denotes the ideal of subsets of N × N.

#### I_2-Convergence of double sequence of fuzzy numbers

(2013)

In this paper, we introduce and study the concepts of I_2-convergence, I∗_2-convergence for double sequences of fuzzy real numbers, where I_2 denotesthe ideal of subsets of N × N. Also, we study some properties and relations ...

#### On the fine spectrum of the upper triangle double band matrix Δ+ on the sequence space c0

(2013)

In this study, we determine the fine spectrum of the matrix operator ∆+ defined by an upper triangle double band matrix acting on the sequence space c_0 with respect to the Goldberg’s classification. As a new development, ...

#### On strongly I and I^*-lacunary convergence of sequences of sets

(2013)

In this paper we study the concepts of Wijsman strongly lacunary convergence, Wijsman strongly I-lacunary convergence, Wijsman strongly I^*-lacunary convergence and Wijsman strongly I-lacunary Cauchy sequences of sets and ...

#### Multipliers for bounded convergent of double sequences

(2013)

In this paper we investigate multipliers for bounded convergence of double sequences and study some properties and relations between ℓ^2, c2(b) and c20(b).

#### Regularly ideal convergence and regularly ideal cauchy double sequences in 2-normed spaces

(Algerian-Turkish International Days on Mathematics 2013, 2013)

In this paper, we introduce the notions of (I_2; I), (I*_2 ; I*)-convergence and (I_2; I), (I*_2 ; I*)-Cauchy double sequence in regular sense in 2-normed spaces. Also, we study some properties of these concepts.