for Journals by Title or ISSN for Articles by Keywords help
 Subjects -> MATHEMATICS (Total: 886 journals)     - APPLIED MATHEMATICS (72 journals)    - GEOMETRY AND TOPOLOGY (20 journals)    - MATHEMATICS (656 journals)    - MATHEMATICS (GENERAL) (42 journals)    - NUMERICAL ANALYSIS (19 journals)    - PROBABILITIES AND MATH STATISTICS (77 journals) MATHEMATICS (656 journals)                  1 2 3 4 | Last

1 2 3 4 | Last

 Facta Universitatis, Series : Mathematics and Informatics   [0 followers]  Follow       Open Access journal    ISSN (Print) 0352-9665 - ISSN (Online) 2406-047X    Published by U of Niš  [12 journals]
• FIXED POINT THEOREMS USING (CLCS) PROPERTY IN COMPLEX VALUED $b$-METRIC
SPACES

• Authors: Rohit Kumar Verma
Pages: 269 - 292
Abstract: Abstract. Various common fixed point theorems have been proved for one
or two pair of mappings using either (CLR) property ([24]), or by taking
one of the range-subspace closed. In this paper, we introduce the notion of
(CLCS)-property i.e., “common limit converging in the range sub-space”. Using this property, we prove common fixed point theorems for two pairs of
weakly compatible mappings in complex valued b-metric spaces satisfying a
collection of contractive conditions. Our notion is meaningful and valid because the required common fixed point will always lie on the range-subspace of the mapping-pair. We give some examples to show that if a mapping pair (f, g) of a closed complex valued b-metric space X satisfy the (CLRf ) property, then it is also (CLRg), and vice-versa.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• ON NEW CLASSES OF ANALYTIC FUNCTIONS IMPOSED VIA THE FRACTIONAL ENTROPY
INTEGRAL OPERATOR

• Authors: Rabha W. Ibrahim
Pages: 293 - 302
Abstract: In this paper, we aim to introduce some geometric properties of analytic functions by utilizing the concept of fractional entropy in a complex domain. We extend the fractional entropy, type Tsallis entropy in the complex z-plane, by using some analytic functions. Established by this diffusion,we state specic new classes of analytic functions (type Schwarz function). Other geometric properties are validated in the sequel. Our development is completed by the Euler form Lemma and Jack Lemma.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• ON THE SPACES OF λm-BOUNDED AND λm-ABSOLUTELY p-SUMMABLE
SEQUENCES

• Authors: Sinan Ercan, Çiğdem Asma Bektaş
Pages: 303 - 318
Abstract: In this paper, we give the notion of λm-boundedness and p-absolute convergence
of type λm and using these notions we define new sequence spaces. We examine
some topological and geometric properties of these spaces. We also establish some
inclusion relations concerning these spaces and characterize some matrix classes.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• SOME NEW OSTRWOSKI’S INEQUALITIES FOR n-TIMES DIFFERENTIABLE
MAPPINGS WHICH ARE QUASI-CONVEX

Pages: 319 - 327
Abstract: Some new Ostrowski's inequalities for functions whose $n^{th}$ derivatives
are quasi-convex are established.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• COMMON FIXED POINTS OF A PAIR OF SELFMAPS SATISFYING CERTAIN WEAKLY
CONTRACTIVE INEQUALITY INVOLVING RATIONAL TYPE EXPRESSIONS VIA TWO
AUXILIARY FUNCTIONS IN PARTIALLY ORDERED METRIC SPACES

• Authors: Gutti Venkata Ravindranadh Babu, Kandala Kanaka Mahalakshmi Sarma, Padala Hari Kirshna, Vallabhapurapu Asunee Kumari, Gedala Satyanarayana, Pathina Sudheer Kumar
Pages: 329 - 352
Abstract: In this paper, we prove the existence of coincidence and common fixed points of a pair of selfmaps satisfying certain weakly contractive inequality with two auxiliary functions involving rational type expressions in partially ordered metric spaces. These results extend some of the known existing results in the literature from a single selfmap to a pair of selfmaps. Examples are provided in support of our results.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• ON AN INVARIANT SUBMANIFOLD OF HYPERBOLIC SASAKIAN MANIFOLDS

• Authors: Shravan Kumar Pandey, Ram Nawal Singh
Pages: 353 - 367
Abstract: The object of the present paper is to study an invariant submanifold of hyperbolic Sasakian maifolds. In this paper, we consider semiparallel and 2-semiparallel invariant submanifolds of hyperbolic Sasakian manifold and it is shown that these submanifolds are totally geodesic. It is also proved that on an invariant submanifold of hyperbolic Sasakian manifolds the conditions $I(X, Y).\alpha = 0$, $I(X, Y).\tilde{\nabla}\alpha = 0$, $C(X, Y).\alpha = 0$, $C(X, Y).\tilde{nabla}\alpha = 0$ holds if and only if it is totally geodesic.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• EXISTENCE OF N(k)-QUASI EINSTEIN MANIFOLDS

• Authors: Sudhakar Kumar Chaubey
Pages: 369 - 385
Abstract: The aim of the present paper is to study the properties of pseudo Ricci symmetric
quasi Einstein and N(k)-quasi Einstein manifolds. We construct some examples of
N(k)-quasi Einstein manifolds which support the existence of such manifolds.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• RICCI SOLITONS ON HOPH HYPERSURFACES IN SASAKIAN SPACE FORM

• Authors: Zahra Nazari, Esmail Abedi
Pages: 387 - 404
Abstract: We are studying Ricci solitons on Hoph hypersurfaces in Sasakian space form
fM2n+1(c). The rst, we prove that Hoph hypersurfaces of a Sasakian space form
fM2n+1(c < 1) with two distinct principal curvatures is shrinking and for c 1,
Hoph hypersurfaces with two distinct principal curvatures of a Sasakian space form
fM2n+1(c) does not admit a Ricci soliton. We show that there is not any Hoph hyper-
surfaces with two distinct principal curvatures in a Sasakian space form fM2n+1(c)
with a -Ricci soliton (and Ricci soliton) such that potential vector eld is the Reeb
vector eld.
Then we prove that Hoph hypersurfaces in Sasakian space form fM2n+1(c) with
c = 1 does not admit a - Ricci soliton with potential vector eld U and we show
that Ricci soliton on Hoph hypersurfaces M in Sasakian space form fM2n+1(c <
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• ON SOME GENERALIZED DIFFERENCE SEQUENCE SPACES OF FUZZY NUMBERS DEFINED BY
A SEQUENCE OF MODULI

• Authors: Shyamal Debnath, Jayanta Debnath
Pages: 405 - 412
Abstract: We have introduced the paranormed sequence spaces cF (f; Λ; ∆m; p),
cF0 (f; Λ; ∆m; p) and l1 F (f; Λ; ∆m; p) of fuzzy numbers associated with the multiplier sequence Λ = (λk) determined by a sequence of moduli f = (fk). Some of their properties like solidity, symmetricity, completeness etc. and inclusion relations are studied.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

• THE GENERALIZED NON-ABSOLUTE TYPE OF TRIPLE Γ3 SEQUENCE SPACES
DEFINED MUSIELAK-ORLICZ FUNCTION

• Authors: Shyamal Debnath, Nagarajan Subramanian
Pages: 413 - 420
Abstract: In this paper we introduce the notion of λmnk - Γ3 and Λ3 sequences. Further, we introduce the spaces hΓ3 fλ; k(d (x1; 0) ; d (x2; 0) ; · · · ; d (xn-1; 0))kpi
and hΛ3 fλ; k(d (x1; 0) ; d (x2; 0) ; · · · ; d (xn-1; 0))kpi ; which are of nonabsolute type and we prove that these spaces are linearly isomorphic
to the spaces Γ3 and Λ3; respectively. Moreover, we establish some
inclusion relations between these spaces.
PubDate: 2017-10-13
Issue No: Vol. 32, No. 3 (2017)

JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327

Home (Search)
Subjects A-Z
Publishers A-Z
Customise
APIs