CONTENTS             Vol. 30, No. 1, 2021

MANZOOR AHMAD, RAJSHREE MISHRA and RENU JAIN
A fractional reduced differential transform method for solving time fractional Black Scholes American option pricing equation  pp.  01 – 10
SZILÁRD ANDRÁS and SÁNDOR NAGYDOBAI KISS
An area formula for the triangle of residual centroids and its generalizations pp. 11 – 18
GUS ARGYROS, MICHAEL ARGYROS, IOANNIS K. ARGYROS and SANTHOSH GEORGE
A comparison between two competing sixth convergence order algorithms under the same set of conditions pp. 19 – 28
KADRI ARSLAN, ALIM SÜTVEREN and BETÜL BULCA
Rotational λ – hypersurfaces in Euclidean spaces pp. 29 – 40
V. LOKESHA, Y. SHANTHAKUMARI and K. ZEBA YASMEEN
Energy and skew-energy of a modified graph pp. 41 – 48
NISAR A. LONE and T. A. CHISHTI
Riemann intergability versus continuity for vector – valued functions pp. 49 – 60
G. NAGA MALLESWARI, S. SREENIVASULU and G. SHOBHALATHA
Semiprime rings with multiplicative (generalized) – derivations involving left multipliers pp. 61 – 68
SH. NAJAFZADEH, H. RAHMATAN and H. HAJI
Application of subordination for estimating the Hankel determinant for subclass of univalent functions pp. 69 – 74
FATIH NURAY
Some Cesáro-type quasinormal convergences pp.  75 – 80
TUĞBA PETIK, HILAL AKBULUT and HALIM ÖZDEMIR
Some 3 x 3 dimensional nonsingular matrices related to generalized Fibonacci numbers pp. 81 – 88
UĞUR ŞENGÜL
More on  δ-and θ-modifications pp. 89 – 96
HONEY SHARMA and RAMAPATI MAURYA
Durrmeyer type modification of (p, q)-Szász Mirakjan operators and their quantitative estimates pp. 97 – 106
BOGDAN D. SUCEAVĂ
The fruit of the meditations of a young Lieutenant of the Engineers:A Theorem of Major Impact and Its Applications. Two Centuries from the Discovery of the Nine-Point Circle pp. 107 – 114
S. VIVEK and SUNIL C. MATHEW
Some De Morgan algebras associated with a double fuzzy topological space pp. 115 – 120