Browsing by Author "Yildiz, Sebnem"
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An Application of QuasiMonotone Sequences to Absolute Matrix Summability
Yildiz, Sebnem (UNIV NIS, FAC SCI MATH, 2018)Recently, Bor [5] has obtained two main theorems dealing with vertical bar(N) over bar, p(n)vertical bar(k) summability factors of infinite series and Fourier series. In the present paper, we have generalized these theorems ... 
AN ASPECT OF LOCAL PROPERTY OF FOURIER SERIES
Yildiz, Sebnem (YARMOUK UNIV, DEANSHIP RESEARCH & GRADUATE STUDIES, 2017)In this paper, a general theorem concerning vertical bar(N) over bar, p(n), theta(n)vertical bar(k) summability factors of Fourier series is obtained. Using this result we study a localization problem for Fourier series. 
A General Matrix Application of Convex Sequences to Fourier Series
Yildiz, Sebnem (UNIV NIS, FAC SCI MATH, 2018)By using a convex sequence Bor [H. Bor, Local properties of factored Fourier series, Appl. Math. Comp. 212 (2009) 8285] has obtained a result dealing with local property of factored Fourier series for weighted mean ... 
Local Properties of Absolute Matrix Summability of Factored Fourier Series
Ozarslan, Hikmet Seyhan; Yildiz, Sebnem (UNIV NIS, FAC SCI MATH, 2017)In this paper, we introduce two new general theorems on phi  vertical bar A,p(n)vertical bar(k) summability factors of infinite and Fourier series. By using these theorems, we obtain some new results regarding other ... 
A Matrix Application of Quasimonotone Sequences to Infinite Series and Fourier Series
Yildiz, Sebnem (AMER INST PHYSICS, 2018)In the present paper, we have generalized two main theorems dealing with weighted mean summability for absolute matrix sununability which play a vital role in the field of theory and application of summability by using ... 
A matrix application on absolute weighted arithmetic mean summability factors of infinite series
Yildiz, Sebnem (TBILISI CENTRE MATH SCI, 2018)In this present paper, we have generalized a main theorem dealing with vertical bar(N) over bar, p(n)vertical bar(k) summability of non decreasing sequences to vertical bar A,p(n)vertical bar(k) summability method by using ... 
A NEW GENERALIZATION ON ABSOLUTE MATRIX SUMMABILITY FACTORS OF FOURIER SERIES
Yildiz, Sebnem (UNIV PRISHTINES, 2017)In this paper, two theorems for A, p(n); delta(k) summability which generalize recent theorems on A, p(n)(k) summability of Fourier series have been proved. This work also reveals many factor theorems for other summability ... 
A NEW NOTE ON LOCAL PROPERTY OF FACTORED FOURIER SERIES
Yildiz, Sebnem (INT CENTER SCIENTIFIC RESEARCH & STUDIES, 2016)The aim of this paper is to generalize a main theorem dealing with local property of Fourier series to the vertical bar A, theta(n)vertical bar(k) summability. Also some new and known results are obtained dealing with some ... 
A NEW RESULT FOR WEIGHTED ARITHMETIC MEAN SUMMABILITY FACTORS OF INFINITE SERIES INVOLVING ALMOST INCREASING SEQUENCES
Yildiz, Sebnem (ANKARA UNIV, FAC SCI, 2019)In this paper, a known theorem dealing with weighted mean summability methods of nondecreasing sequences has been generalized for vertical bar A, p(n); delta vertical bar(k) summability factors of almost increasing ... 
New Result on Matrix Summability Factors of Infinite Series and Fourier Series
Yildiz, Sebnem (AMER INST PHYSICS, 2019)In the present paper, we have extended the result of Sulaiman [10] dealing with vertical bar(N) over bar, p(n)vertical bar(k) summability factors of Fourier series to the vertical bar A, Pn vertical bar(k) summability method. 
A new result on weighted arithmetic mean summability factors of infinite series involving almost increasing sequences
Yildiz, Sebnem (AMER INST PHYSICS, 2019)In this paper, a known theorem dealing with weighted mean summability methods of nondecreasing sequences has been generalized for vertical bar A, p(n); delta vertical bar(k) summability factors of almost increasing ... 
A NEW STUDY ON THE ABSOLUTE SUMMABILITY FACTORS OF FOURIER SERIES
Ozarslan, Hikmet Seyhan; Yildiz, Sebnem (UNIV PRISHTINES, 2016)In this paper, we establish a new theorem on vertical bar A, pn vertical bar(k) summability factors of Fourier series using matrix transformation, which generalizes a main theorem of Bor [6] on vertical bar(N) over bar, ... 
A NEW THEOREM ON ABSOLUTE MATRIX SUMMABILITY OF FOURIER SERIES
Yildiz, Sebnem (PUBLICATIONS L INSTITUT MATHEMATIQUE MATEMATICKI, 2017)We generalize a main theorem dealing with absolute weighted mean summability of Fourier series to the A, p(n)(k) summability factors of Fourier series under weaker conditions. Also some new and known results are obtained. 
A NEW THEOREM ON LOCAL PROPERTIES OF FACTORED FOURIER SERIES
Yildiz, Sebnem (INT CENTER SCIENTIFIC RESEARCH & STUDIES, 2016)In this paper, a general theorem dealing with the local property of vertical bar A; p(n); delta vertical bar(k) summability of factored Fourier series, which generalizes some known results, has been proved. This new theorem ... 
A New Variation on Lacunary Statistical Quasi Cauchy Sequences
Yildiz, Sebnem (AMER INST PHYSICS, 2018)In this paper, the concept of an Sthetadelta(2)quasiCauchy sequence is investigated. In this investigation, we proved interesting theorems related to Sthetadelta(2)ward continuity, and some other kinds of continuities. ... 
On Absolute Matrix Summability Factors of Infinite Series and Fourier Series
Yildiz, Sebnem (GAZI UNIV, 2017)In this paper, a known theorem on vertical bar(N) over bar, p(n vertical bar k) summability factors of infinite series have been generalized for vertical bar A,theta(n)vertical bar(k). summability factors. Using this ... 
On application of matrix summability to Fourier series
Yildiz, Sebnem (WILEY, 2018)Bor has recently obtained amain theorem dealing with absolute weighted mean summability of Fourier series. In this paper, we generalized that theorem for vertical bar A, theta(n)vertical bar k summability method. Also, ... 
On Riesz summability factors of Fourier series, Sebnem Yildiz
Yildiz, Sebnem (ELSEVIER SCIENCE BV, 2017)In this paper, a main theorem dealing with (N) over bar, p(n)(k) summability method has been generalized for (SIC) (N) over bar, p(n); delta(k) summability by using different and general summability factors of Fourier ... 
A STUDY ON MATRIX SUMMABILITY OF FOURIER SERIES
Yildiz, Sebnem (MILI PUBL, 2018)In this paper, a main result dealing with absolute Riesz summability of Fourier series has been generalized to the vertical bar A, Pn vertical bar(k) summability method. Some new results concerning an application of ... 
A Variation on Absolute Weighted Mean Summability Factors of Fourier Series and its Conjugate Series
Yildiz, Sebnem (SOC PARANAENSE MATEMATICA, 2020)In this paper, theorems concerning vertical bar(N) over bar, p(n), theta(n)vertical bar(k) factors of Fourier series and its conjugate series are studied. The presented results are generalizations two theorems of Mazhar ...