# zbMATH — the first resource for mathematics

## Quaestiones Mathematicae

### Journal of the South African Mathematical Society

 Short Title: Quaest. Math. Publisher: Taylor & Francis, Abingdon, Oxfordshire; National Inquiry Services Centre (NISC), Grahamstown ISSN: 1607-3606; 1727-933X/e Online: http://www.tandfonline.com/loi/tqma20http://www.nisc.co.za/abstracts?id=7&absid=318 Comments: Indexed cover-to-cover
 Documents Indexed: 1,857 Publications (since 1976) References Indexed: 1,230 Publications with 19,693 References.
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#### Authors

 22 Henning, Michael Anthony 21 Banaschewski, Bernhard 16 Herrlich, Horst 15 Grobler, Jacobus J. 15 Groenewald, Nico Johannes 14 Hardie, Keith A. 14 Pultr, Aleš 13 Dube, Themba 13 Leach, Peter Gavin Lawrence 11 Castellini, Gabriele 11 Fourie, Jan H. 10 Anguelov, Roumen 10 Jäger, Gunther 10 Prodinger, Helmut 10 Rohwer, Carl Heinrich 10 Swart, Henda C. 9 Booth, Geoffrey L. 9 France-Jackson, Halina 9 Labuschagne, Coenraad C. A. 9 Veldsman, Stefan 8 Bentley, H. Lamar 8 Cross, Ronald 8 Diestel, Joseph 8 Haynes, Teresa W. 8 Le Roux, Herman J. 8 Moori, Jamshid 8 Ntumba, Patrice Pungu 8 Picado, Jorge 8 Raubenheimer, Heinrich 8 Rund, Hanno 8 Srivastava, Arun Kamar 8 Winter, Paul August 7 Baboolal, Dharmanand 7 Driver, Kathy A. 7 Edelen, Dominic Gardiner Bowling 7 Everitt, William Norrie 7 Goddard, Wayne Dean 7 Krall, Allan M. 7 Naude, Gert 7 Popa, Dumitru 7 Raftery, James G. 7 Song, Yankui 6 Bárcenas, Diómedes 6 Bu, Qingying 6 Buys, A. 6 Cherenack, Paul 6 Faierman, Melvin 6 Hao, Guoliang 6 Knopfmacher, Arnold 6 Labuschagne, Louis E. 6 Moshokoa, Seithuti Philemon 6 Mwambene, Eric 6 Porst, Hans-Eberhard 6 Pretorius, Lou M. 6 Swart, Johan 6 Wiegandt, Richard 6 Witbooi, Peter Joseph 5 Alderton, Ian W. 5 Aouf, Mohamed Kamal 5 Broere, Izak 5 Burton, M. H. 5 Cammaroto, Filippo 5 Fay, Temple H. 5 Garcia-Pacheco, Francisco Javier 5 Govinder, Keshlan Sathasiva 5 Gutiérrez García, Javier 5 Hajek, Darrell W. 5 Harding, Ansie 5 Kadets, Vladimir M. 5 Littlejohn, Lance L. 5 Ma, Jingjing 5 Mosić, Dijana 5 Mynhardt, Christina M. 5 Paliathanasis, Andronikos 5 Patidar, Kailash C. 5 Preuß, Gerhard 5 Rodrigues, Bernardo Gabriel 5 Sánchez-Pérez, Enrique Alfonso 5 Tkachuk, Vladimir Vladimirovich 5 van der Walt, Jan Harm 5 van Eldik, Peter 4 Acharyya, Sudip Kumar 4 Álvarez Seco, Teresa 4 Bargenda, Hubertus W. 4 Bishop, Nigel T. 4 Bonanzinga, Maddalena 4 Browne, Patrick J. 4 Brümmer, Guillaume C. L. 4 Burger, Alewyn Petrus 4 Desormeaux, Wyatt J. 4 Enochs, Edgar E. 4 Frentzen, Hilbert 4 Frith, John L. 4 Ghasemi Honary, Taher 4 Giuli, Eraldo 4 Harte, Robin E. 4 Holgate, David B. 4 Hušek, Miroslav 4 Kamps, Klaus Heiner 4 Keet, Arnold ...and 1,755 more Authors
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#### Fields

 362 General topology (54-XX) 360 Functional analysis (46-XX) 258 Operator theory (47-XX) 189 Combinatorics (05-XX) 189 Associative rings and algebras (16-XX) 177 Category theory; homological algebra (18-XX) 159 Order, lattices, ordered algebraic structures (06-XX) 111 Ordinary differential equations (34-XX) 108 Number theory (11-XX) 101 Group theory and generalizations (20-XX) 83 Partial differential equations (35-XX) 53 Mathematical logic and foundations (03-XX) 53 Real functions (26-XX) 52 Commutative algebra (13-XX) 49 Algebraic topology (55-XX) 47 Measure and integration (28-XX) 47 Differential geometry (53-XX) 46 Numerical analysis (65-XX) 43 Functions of a complex variable (30-XX) 35 Approximations and expansions (41-XX) 35 Global analysis, analysis on manifolds (58-XX) 32 Linear and multilinear algebra; matrix theory (15-XX) 32 Special functions (33-XX) 31 Dynamical systems and ergodic theory (37-XX) 31 Probability theory and stochastic processes (60-XX) 30 General and overarching topics; collections (00-XX) 29 Harmonic analysis on Euclidean spaces (42-XX) 27 Nonassociative rings and algebras (17-XX) 25 Fluid mechanics (76-XX) 23 General algebraic systems (08-XX) 21 Algebraic geometry (14-XX) 21 Convex and discrete geometry (52-XX) 20 Topological groups, Lie groups (22-XX) 20 Sequences, series, summability (40-XX) 19 Difference and functional equations (39-XX) 17 Calculus of variations and optimal control; optimization (49-XX) 16 Mathematics education (97-XX) 15 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 15 Systems theory; control (93-XX) 13 Information and communication theory, circuits (94-XX) 12 Abstract harmonic analysis (43-XX) 12 Computer science (68-XX) 12 Biology and other natural sciences (92-XX) 11 Relativity and gravitational theory (83-XX) 10 History and biography (01-XX) 10 Field theory and polynomials (12-XX) 10 Manifolds and cell complexes (57-XX) 10 Mechanics of particles and systems (70-XX) 8 Operations research, mathematical programming (90-XX) 6 Integral transforms, operational calculus (44-XX) 6 Classical thermodynamics, heat transfer (80-XX) 5 Potential theory (31-XX) 5 Integral equations (45-XX) 5 Statistics (62-XX) 5 Quantum theory (81-XX) 4 Geometry (51-XX) 3 Several complex variables and analytic spaces (32-XX) 3 Mechanics of deformable solids (74-XX) 2 $$K$$-theory (19-XX) 2 Optics, electromagnetic theory (78-XX) 2 Statistical mechanics, structure of matter (82-XX) 2 Astronomy and astrophysics (85-XX) 1 Geophysics (86-XX)

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Powers and exponential objects in initially structured categories and applications to categories of limit spaces. Zbl 0521.54006
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Relative compactness and compactness of general subsets in an $$I$$- topological space. Zbl 0806.54007
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Topological categories and closure operators. Zbl 0657.18003
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Distinct digits in base $$b$$ expansions of linear recurrence sequences. Zbl 1030.11004
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The spectral theory of commutative $$C^*$$-algebras: The constructive Gelfand-Mazur theorem. Zbl 0977.18004
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On the Groenewald-Heyman strongly prime radical. Zbl 0554.16005
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Combinatorial parameters in bargraphs. Zbl 1423.05011
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2016
Convergence analysis of an iterative method for solving multiple-set split feasibility problems in certain Banach spaces. Zbl 07117256
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2018
Fuzzy topologies of Scott continuous functions and their relation to the hypergraph functor. Zbl 0764.54004
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1992
On the relationship between several basic categories in fuzzy topology. Zbl 1041.54014
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Topologies on the set of all subspaces of a Banach space and related questions of Banach space geometry. Zbl 0807.46014
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Combined sinh-cosh-Gordon equation: symmetry reductions, exact solutions and conservation laws. Zbl 1397.35152
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The disjunctive domination number of a graph. Zbl 1404.05150
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2014
Automatic continuity of $$N$$-homomorphisms between Banach algebras. Zbl 1274.46100
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2010
Ruston elements and Fredholm theory relative to arbitrary homomorphisms. Zbl 1274.46095
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Montel resolvents and uniformly mean ergodic semigroups of linear operators. Zbl 1274.47005
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Core-EP pre-order of Hilbert space operators. Zbl 1442.15005
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Optimal impliciational bases for finite modular lattices. Zbl 0963.06006
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Numerical homoclinic instabilities in the sine-Gordon equation. Zbl 0785.65086
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Algebraic entropy of shift endomorphisms on abelian groups. Zbl 1194.37015
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2009
Weaker forms of the Menger property. Zbl 1274.54074
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2012
Some observations about the space of weakly continuous functions from a compact space into a Banach space. Zbl 0769.46031
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1992
Clique numbers of Paley graphs. Zbl 0691.05051
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Riesz reasonable cross norms on tensor products of Banach lattices. Zbl 1079.46010
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The Fischer-Clifford matrices of the group $$2^6:\text{SP}_6(2)$$. Zbl 0944.20010
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1999
Function spaces and $$d$$-separability. Zbl 1091.54008
2005
Localification of variable-basis topological systems. Zbl 1274.06043
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2011
On cotype and a Grothendieck-type theorem for absolutely summing multilinear operators. Zbl 1274.46092
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2011
Some properties and expansions associated with the $$q$$-digamma function. Zbl 1274.41061
Salem, Ahmed
2013
The forcing number of graphs with given girth. Zbl 1385.05060
Davila, Randy; Henning, Michael A.
2018
A vector lattice version of Rådström’s embedding theorem. Zbl 1144.06009
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2007
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Are higher fuzzy separation axioms good extensions? Zbl 0804.54006
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1994
MV-algebra valued filter theory. Zbl 0865.54004
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Fibonacci numbers which are concatenations of two repdigits. Zbl 07340199
2021
Riemann soliton within the framework of contact geometry. Zbl 1467.53053
Devaraja, M. N.; Aruna Kumara, H.; Venkatesha, V.
2021
Composite outer inverses for rectangular matrices. Zbl 1458.15009
Mosić, Dijana; Stanimirović, Predrag S.
2021
About porosity of some Świątkowski functions in the space of quasi-continuous functions. Zbl 07312316
Ivanova, Gertruda; Karasińska, Aleksandra
2021
Spectra of composition operators on Fock-type spaces. Zbl 07340164
Mengestie, Tesfa; Seyoum, Werkaferahu
2021
Some information measures in concomitants of generalized order statistics under iterated Farlie-Gumbel-Morgenstern bivariate type. Zbl 1467.62021
Barakat, H. M.; Husseiny, I. A.
2021
Some inequalities for the $$(p, q)$$-mixed affine surface areas. Zbl 07357102
Wang, Weidong; Zhao, Xia
2021
Remarks on normal distributive nearlattices. Zbl 07357117
Calomino, Ismael; González, Luciano J.
2021
Certain new factor theorems for infinite series and trigonometric Fourier series. Zbl 1451.40005
Bor, Hüseyin
2020
A note on the Appell matrix functions. Zbl 1435.15006
Dwivedi, Ravi; Sahai, Vivek
2020
On the signed Roman $$k$$-domination in graphs. Zbl 1452.05115
2020
Iterative algorithm for a family of monotone inclusion problems in $$\mathrm{CAT}(0)$$ spaces. Zbl 07311174
Dehghan, H.; Izuchukwu, C.; Mewomo, O. T.; Taba, D. A.; Ugwunnadi, G. C.
2020
The inner site-perimeter of compositions. Zbl 1432.05008
Blecher, Aubrey; Brennan, Charlotte; Knopfmacher, Arnold
2020
Kantorovich-Bernstein $$\alpha$$-fractal function in $$\mathcal{L}^P$$ spaces. Zbl 1436.28006
Chand, A. K. B.; Jha, Sangita; Navascués, M. A.
2020
Explicit expressions for the related numbers of higher order Appell polynomials. Zbl 07265481
Hu, Su; Komatsu, Takao
2020
Variations of classical selection principles: an overview. Zbl 1450.54010
Kočinac, Ljubiša D. R.
2020
The Fischer-Marsden conjecture on almost Kenmotsu manifolds. Zbl 1433.53077
De, U. C.; Mandal, Krishanu
2020
Nonlinear diameter preserving maps on function spaces. Zbl 1435.47043
Font, Juan J.; Hosseini, Maliheh
2020
On certain properties and expansions of zeta matrix function, digamma matrix function and polygamma matrix function. Zbl 1430.15007
Dwivedi, Ravi; Sahai, Vivek
2020
Blow-up of smooth solutions of the time-fractional Burgers equation. Zbl 1439.35231
Alsaedi, Ahmed; Kirane, Mokhtar; Torebek, Berikbol T.
2020
Some identities involving Appell polynomials. Zbl 1443.05019
Mihoubi, Miloud; Taharbouchet, Said
2020
Shifted Cauchy numbers. Zbl 1444.11041
Komatsu, Takao; Pita-Ruiz, Claudio
2020
Large characteristic subgroups and abstract group classes. Zbl 1457.20024
de Giovanni, Francesco; Trombetti, Marco
2020
On skew derivations and generalized skew derivations in Banach algebras. Zbl 07307595
Khan, Abdul Nadim; Ali, Shakir; Alhazmi, Husain; De Filippis, Vincenzo
2020
On a new generalized inverse for Hilbert space operators. Zbl 07307600
Chen, Jianlong; Mosić, Dijana; Xu, Sanzhang
2020
Some applications of exponentially separable spaces. Zbl 07307653
2020
On directional convexity of harmonic mappings in the plane. Zbl 1457.31003
Long, Bo-Yong; Huang, Hua-Ying
2020
The perimeter of 2-compositions. Zbl 1458.05029
Mansour, Toufik; Shabani, Armend Sh.
2020
A characterization and perturbation bounds for the weighted core-EP inverse. Zbl 1458.15008
Ma, Haifeng
2020
New spaces of matrices with operator entries. Zbl 07311593
Blasco, Oscar; García-Bayona, Ismael
2020
Associated weights for spaces of $$p$$-integrable entire functions. Zbl 07311597
Bonet, José; Mangino, Elisabetta M.
2020
Extension and integral representation of the finite Hilbert transform in rearrangement invariant spaces. Zbl 1467.44002
Curbera, Guillermo P.; Okada, Susumu; Ricker, Werner J.
2020
Some properties of Baskakov-Schurer-Szász operators via power summability methods. Zbl 1434.41013
Braha, Naim L.
2019
Joint discrete universality for periodic zeta-functions. Zbl 1441.11235
Laurinčikas, Antanas
2019
A new factor theorem for absolute matrix summability. Zbl 1432.40007
Özarslan, Hikmet Seyhan
2019
Connectedness for lattice-valued subsets in lattice-valued convergence spaces. Zbl 07048630
Jin, Qiu; Li, Lingqiang; Lv, Yanrui; Zhao, Fangfang; Zou, Juan
2019
Colouring games based on autotopisms of Latin hyper-rectangles. Zbl 1420.05114
Andres, Stephan Dominique; Falcón, Raúl M.
2019
On resolvable primal spaces. Zbl 1418.54006
Dahane, Intissar; Lazaar, Sami; Richmond, Tom; Turki, Tarek
2019
Almost periodic solutions for a class of non-instantaneous impulsive differential equations. Zbl 1436.34041
Tian, Ying; Wang, Jinrong; Zhou, Yong
2019
Limit-point criteria for $$q$$-Sturm-Liouville equations. Zbl 1427.39003
Allahverdiev, Bilender P.; Tuna, Hüseyin
2019
Stochastic dynamics of an HIV/AIDS epidemic model with treatment. Zbl 1417.92194
Nsuami, Mozart U.; Witbooi, Peter J.
2019
Some properties of $$c$$-covers of a pair of Lie algebras. Zbl 07024383
Arabyani, Homayoon; Safa, Hesam
2019
Multiplicative $$\ast$$-Lie triple higher derivations of standard operator algebras. Zbl 07111860
2019
Vector lattice covers of ideals and bands in pre-Riesz spaces. Zbl 1429.46002
Kalauch, Anke; Malinowski, Helena
2019
Practical numbers in Lucas sequences. Zbl 1455.11034
Sanna, Carlo
2019
Some new results on functions in $$C(X)$$ having their support on ideals of closed sets. Zbl 1440.54008
Acharyya, Sudip Kumar; Bag, Sagarmoy; Bhunia, Goutam; Rooj, Pritam
2019
Global Italian domination in graphs. Zbl 1425.05116
Hao, Guoliang; Hu, Kangxiu; Wei, Shouliu; Xu, Zhijun
2019
On functions without pseudo derivatives having fractional pseudo derivatives. Zbl 1428.26015
Salem, Hussein A. H.
2019
On non-surjective coarse isometries between Banach spaces. Zbl 1423.46014
Cheng, Lixin; Fang, Quanqing; Luo, Sijie; Sun, Longfa
2019
A new family of Lerch-type zeta functions interpolating a certain class of higher-order Apostol-type numbers and Apostol-type polynomials. Zbl 1446.11038
Kucukoğlu, Irem; Simsek, Yilmaz; Srivastava, H. M.
2019
On approximation of approximately generalized quadratic functional equation via Lipschitz criteria. Zbl 1415.39019
EL-Fassi, Iz-Iddine
2019
On Amitsur rings. Zbl 1440.16011
Tumurbat, S.
2019
Radius preserving (semi)regularities in Banach algebras. Zbl 1439.46039
Raubenheimer, H.; Swartz, A.
2019
A note on Golomb topologies. Zbl 1420.54050
Clark, Pete L.; Lebowitz-Lockard, Noah; Pollack, Paul
2019
Strict and Mackey topologies and tight vector measures. Zbl 1414.46029
Nowak, Marian
2019
Linear maps between C$$^*$$-algebras that are $$^*$$-homomorphisms at a fixed point. Zbl 07048631
Burgos, María J.; Sánchez, Javier Cabello; Peralta, Antonio M.
2019
The mixed $$L_p$$ affine surface areas for functions. Zbl 07048638
Zhu, Baocheng; Xing, Sudan
2019
Lie symmetry analysis and explicit formulas for solutions of some third-order difference equations. Zbl 1420.39010
Folly-Gbetoula, M.; Nyirenda, D.
2019
On the connectedness of the complement of the zero-divisor graph of a poset. Zbl 1420.05074
Devhare, Sarika; Joshi, Vinayak; LaGrange, John
2019
The $$(p,q)$$-mixed geominimal surface areas. Zbl 1428.52005
Feng, Yibin; He, Binwu
2019
Generating dual Baer modules via fully invariant submodules. Zbl 07122658
Pekacar Calci, Tugce; Harmanci, Abdullah; Ungor, Burcu
2019
Rings of continuous functions vanishing at infinity on a frame. Zbl 07131016
2019
Eigenvalues of Sturm-Liouville problems with distribution potentials on time scales. Zbl 1430.34101
Ao, Ji-Jun; Wang, Juan
2019
Duality models for multiobjective semiinfinite fractional programming problems involving type-I and related functions. Zbl 1425.90121
Gupta, Pooja; Mishra, S. K.; Mohapatra, R. N.
2019
Symmetry analysis of space-time fractional Poisson equation with a delay. Zbl 1428.35017
Nass, Aminu M.
2019
Sturm Liouville equations in the frame of fractional operators with exponential kernels and their discrete versions. Zbl 1429.34007
Abdeljawad, Thabet; Mert, Raziye; Peterson, Allan
2019
Game domination numbers of a disjoint union of paths and cycles. Zbl 1427.91065
Ruksasakchai, Watcharintorn; Onphaeng, Kritkhajohn; Worawannotai, Chalermpong
2019
Approximate symmetries, conservation laws and numerical solutions for a class of perturbed linear wave type system. Zbl 1427.76197
Reza Hejazi, S.; Hosseinpour, Soleiman; Lashkarian, Elham
2019
Singular conformable sequential differential equations with distributional potentials. Zbl 1411.34042
Baleanu, Dumitru; Jarad, Fahd; Uğurlu, Ekin
2019
On the sum relation of multiple Hurwitz zeta functions. Zbl 1459.11174
Chung, Chan-Liang
2019
The coextension of commutative pomonoids and its application to triangular norms. Zbl 07052500
Janda, Jiří; Vetterlein, Thomas
2019
On zero-divisors of near-rings of polynomials. Zbl 1414.16038
Alhevaz, Abdollah; Hashemi, Ebrahim; Shokuhifar, Fatemeh
2019
Geometry of warped product pseudo-slant submanifolds of Kenmotsu manifolds. Zbl 1414.53045
Al-Solamy, Falleh Rijaullah; Naghi, Monia Fouad; Uddin, Siraj
2019
Inverses of disjointness preserving operators in finite dimensional pre-Riesz spaces. Zbl 07054822
Kalauch, Anke; Lemmens, Bas; van Gaans, Onno
2019
Some aspects of (non) functoriality of natural discrete covers of locales. Zbl 07093650
Ball, Richard N.; Picado, Jorge; Pultr, Aleš
2019
The perimeter of uniform and geometric words: a probabilistic analysis. Zbl 1455.60022
Louchard, Guy
2019
Inducibility of topological trees. Zbl 1417.05027
Dossou-Olory, Audace A. V.; Wagner, Stephan
2019
Ideal convergent subseries in Banach spaces. Zbl 1435.40006
Balcerzak, Marek; Popławski, Michał; Wachowicz, Artur
2019
When separability of the space of ultra-extremal functions is preserved. Zbl 07093655
Agyingi, Collins Amburo
2019
Biderivations of the Galilean conformal algebra and their applications. Zbl 07093659
Ding, Zhaobo; Tang, Xiaomin
2019
Nonlocal representation of the $$\mathrm{sl}(2,R)$$ algebra for the Chazy equation. Zbl 1412.34241
Jamal, Sameerah; Leach, Peter G. L.; Paliathanasis, Andronikos
2019
Exponential integrability of martingales. Zbl 1411.60061
Ho, Kwok-Pun
2019
An introduction to the $$k$$-defect polynomials. Zbl 1411.05132
Mphako-Banda, Eunice
2019
Conjugacies and invariant manifolds via evolution semigroups. Zbl 1442.37047
Barreira, Luis; Valls, Claudia
2019
On $$\tau$$-covers using ideals and some of its consequences. Zbl 1419.54024
Chandra, Debraj; Das, Pratulananda; Samanta, Upasana
2019
Revisiting the core EP inverse and its extension to rectangular matrices. Zbl 1390.15010
Ferreyra, D. E.; Levis, F. E.; Thome, N.
2018
Convergence analysis of an iterative method for solving multiple-set split feasibility problems in certain Banach spaces. Zbl 07117256
Mewomo, O. T.; Ogbuisi, Ferdinard U.
2018
Core-EP pre-order of Hilbert space operators. Zbl 1442.15005
Mosić, Dijana
2018
The forcing number of graphs with given girth. Zbl 1385.05060
Davila, Randy; Henning, Michael A.
2018
Strong inclusion orders between $$L$$-subsets and its applications in $$L$$-convex spaces. Zbl 1406.52001
Pang, Bin; Shi, Fu-Gui
2018
A note on subsymmetric renormings of Banach spaces. Zbl 1406.46006
Ansorena, Jose Luis
2018
Some results on $$(k,\mu)'$$-almost Kenmotsu manifolds. Zbl 1394.53085
Wang, Yaning; Wang, Wenjie
2018
Generalizations of two identities of Guo and Yang. Zbl 1395.05185
Merca, Mircea
2018
On statistical convergence of difference sequences of fractional order and related Korovkin type approximation theorems. Zbl 1410.40004
Baliarsingh, P.; Kadak, U.; Mursaleen, M.
2018
On $$c$$-realcompact spaces. Zbl 1415.54011
Karamzadeh, O. A. S.; Keshtkar, Zahra
2018
The tensor product of $$f$$-algebras. Zbl 1400.46003
Azouzi, Youssef; Ben Amor, Mohamed Amine; Jaber, Jamel
2018
Orlicz-Brunn-Minkowski inequality for radial Blaschke-Minkowski homomorphisms. Zbl 1405.52010
Zhao, Chang-Jian
2018
On cardinality bounds involving the weak Lindelöf degree. Zbl 1429.54028
Bella, A.; Carlson, N.
2018
Dissipative $$q$$-Dirac operator with general boundary conditions. Zbl 06866037
Allahverdiev, Bilender P.; Tuna, Hüseyin
2018
The reciprocal of the weighted geometric mean of many positive numbers is a Stieltjes function. Zbl 1400.30046
Qi, Feng; Guo, Bai-Ni
2018
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#### Cited by 3,374 Authors

 40 Henning, Michael Anthony 32 Leach, Peter Gavin Lawrence 28 Picado, Jorge 26 Jäger, Gunther 23 Dube, Themba 22 Abd-Elhameed, Waleed Mohamed 22 Gutiérrez García, Javier 21 Groenewald, Nico Johannes 21 Littlejohn, Lance L. 21 Pultr, Aleš 20 Veldsman, Stefan 19 Labuschagne, Coenraad C. A. 19 Solovyov, Sergey A. 18 Booth, Geoffrey L. 17 Castellini, Gabriele 17 Pang, Bin 17 Pellegrino, Daniel Marinho 17 Sánchez-Pérez, Enrique Alfonso 16 Banaschewski, Bernhard 16 Hayat, Tasawar 16 Mansour, Toufik 16 Mewomo, Oluwatosin Temitope 15 Dikranjan, Dikran N. 15 Everitt, William Norrie 15 Grobler, Jacobus J. 15 Porst, Hans-Eberhard 14 Al-saedi, Ahmed Eid Salem 14 Doha, Eid H. 14 Duran, Antonio J. 14 Fang, Jinming 14 France-Jackson, Halina 14 Hardie, Keith A. 14 Mahomed, Fazal M. 14 Naidoo, Inderasan 14 Tholen, Walter 13 Ashraf, Mohammad 13 Bu, Qingying 13 Herrlich, Horst 13 Rodabaugh, Stephen Ernest 13 Schauerte, Anneliese 13 Šlapal, Josef 13 van der Walt, Jan Harm 12 Ao, Jijun 12 Kubiak, Tomasz 12 Leiva, Hugo 12 Li, Lingqiang 12 Sun, Jiong 11 Frith, John L. 11 Holgate, David B. 11 Künzi, Hans-Peter A. 11 Luca, Florian 11 Mosić, Dijana 11 Mouton, Sonja 11 Raubenheimer, Heinrich 11 Ricker, Werner Joseph 11 Romaguera Bonilla, Salvador 11 Shi, Fu-Gui 11 Yang, Hongwei 10 Burton, M. H. 10 Hartnell, Bert L. 10 Jin, Qiu 10 Kwon, Kil Hyun 10 Özçağ, Selma 10 Plummer, Michael D. 10 Seoane-Sepúlveda, Juan Benigno 10 Street, Ross H. 10 van Wyk, Leon 9 Alderton, Ian W. 9 Brown, Jason Ira 9 Brümmer, Guillaume C. L. 9 Chen, Jianlong 9 Cross, Ronald 9 Davila, Randy Ryan 9 De, Uday Chand 9 Govinder, Keshlan Sathasiva 9 Knopfmacher, Arnold 9 Kočinac, Ljubiša D. R. 9 Meyer, Johan H. 9 Popa, Dumitru 9 Prodinger, Helmut 9 Šostak, Alexander P. 9 Zettl, Anton 8 Ahsanullah, T. M. G. 8 Ali, Faryad 8 Bonet Solves, José 8 Candeloro, Domenico 8 de Prada Vicente, María Angeles 8 Finbow, Arthur S. 8 Fourie, Jan H. 8 Giordano Bruno, Anna 8 Ighedo, Oghenetega 8 Jolaoso, Lateef Olakunle 8 Krall, Allan M. 8 Lowen, Robert 8 Marcum, Howard J. 8 Moshier, M. Andrew 8 Race, David 8 Rodríguez Ruiz, José 8 Rueda, Pilar 8 Sambucini, Anna Rita ...and 3,274 more Authors
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#### Cited in 494 Journals

 294 Quaestiones Mathematicae 205 Topology and its Applications 165 Fuzzy Sets and Systems 154 Journal of Mathematical Analysis and Applications 82 Communications in Algebra 77 Journal of Pure and Applied Algebra 74 Applied Categorical Structures 63 Discrete Mathematics 54 Discrete Applied Mathematics 48 Journal of Computational and Applied Mathematics 45 Positivity 36 Bulletin of the Australian Mathematical Society 36 Rocky Mountain Journal of Mathematics 34 Acta Mathematica Hungarica 32 Proceedings of the American Mathematical Society 32 Mediterranean Journal of Mathematics 30 Applied Mathematics and Computation 29 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 28 Cahiers de Topologie et Géométrie Différentielle Catégoriques 28 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 27 Linear and Multilinear Algebra 27 Journal of Algebra and its Applications 26 Algebra Universalis 26 Monatshefte für Mathematik 25 Abstract and Applied Analysis 24 Results in Mathematics 24 Linear Algebra and its Applications 23 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 22 Archiv der Mathematik 21 Journal of Functional Analysis 21 Indagationes Mathematicae. New Series 18 Journal of Mathematical Physics 17 Czechoslovak Mathematical Journal 17 Journal of Algebra 17 Transactions of the American Mathematical Society 17 Communications in Nonlinear Science and Numerical Simulation 16 Journal of Approximation Theory 16 Mathematische Nachrichten 15 Computers & Mathematics with Applications 15 Soft Computing 14 International Journal of Mathematics and Mathematical Sciences 14 Journal of Combinatorial Optimization 14 Journal of Mathematics 13 Periodica Mathematica Hungarica 13 Glasgow Mathematical Journal 13 Rendiconti del Circolo Matemàtico di Palermo. Serie II 13 The Ramanujan Journal 12 Applicable Analysis 12 Indian Journal of Pure & Applied Mathematics 12 Journal of Number Theory 12 Proceedings of the Edinburgh Mathematical Society. Series II 12 Order 12 Acta Mathematica Sinica. English Series 12 Central European Journal of Mathematics 11 Mathematical Methods in the Applied Sciences 11 Journal of Differential Equations 11 Theoretical Computer Science 11 Bulletin of the Iranian Mathematical Society 11 Graphs and Combinatorics 11 Journal of Mathematical Sciences (New York) 11 Advances in Difference Equations 11 Applied General Topology 10 Integral Equations and Operator Theory 10 Proceedings of the Indian Academy of Sciences. Mathematical Sciences 10 Mathematical Problems in Engineering 10 Iranian Journal of Fuzzy Systems 10 Asian-European Journal of Mathematics 10 Journal of Function Spaces 10 Advances in Operator Theory 9 Advances in Mathematics 9 Annali di Matematica Pura ed Applicata. Serie Quarta 9 Information Sciences 9 Semigroup Forum 9 Acta Applicandae Mathematicae 9 Journal of the Australian Mathematical Society 9 Banach Journal of Mathematical Analysis 9 Afrika Matematika 9 Open Mathematics 8 Mathematical Proceedings of the Cambridge Philosophical Society 8 Mathematica Slovaca 8 Numerical Functional Analysis and Optimization 8 International Journal of Computer Mathematics 8 Computational and Applied Mathematics 8 Turkish Journal of Mathematics 8 Journal of Applied Mathematics 8 Boundary Value Problems 7 International Journal of Theoretical Physics 7 Demonstratio Mathematica 7 Mathematische Zeitschrift 7 Annals of Pure and Applied Logic 7 Discussiones Mathematicae. Graph Theory 7 Journal of Inequalities and Applications 7 Journal of Nonlinear Mathematical Physics 7 Tbilisi Mathematical Journal 6 Mathematical Notes 6 Collectanea Mathematica 6 Journal of Graph Theory 6 Ricerche di Matematica 6 Advances in Applied Mathematics 6 Applied Mathematics Letters ...and 394 more Journals
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#### Cited in 63 Fields

 749 General topology (54-XX) 597 Functional analysis (46-XX) 468 Operator theory (47-XX) 406 Category theory; homological algebra (18-XX) 356 Combinatorics (05-XX) 322 Associative rings and algebras (16-XX) 319 Order, lattices, ordered algebraic structures (06-XX) 296 Ordinary differential equations (34-XX) 160 Group theory and generalizations (20-XX) 150 Partial differential equations (35-XX) 138 Mathematical logic and foundations (03-XX) 137 Number theory (11-XX) 127 Special functions (33-XX) 120 Numerical analysis (65-XX) 97 Linear and multilinear algebra; matrix theory (15-XX) 97 Real functions (26-XX) 86 Measure and integration (28-XX) 84 Computer science (68-XX) 73 Probability theory and stochastic processes (60-XX) 71 Harmonic analysis on Euclidean spaces (42-XX) 70 Algebraic topology (55-XX) 69 Dynamical systems and ergodic theory (37-XX) 62 Fluid mechanics (76-XX) 59 Commutative algebra (13-XX) 56 Approximations and expansions (41-XX) 52 Differential geometry (53-XX) 44 General algebraic systems (08-XX) 41 Difference and functional equations (39-XX) 40 Functions of a complex variable (30-XX) 39 Nonassociative rings and algebras (17-XX) 39 Sequences, series, summability (40-XX) 34 Topological groups, Lie groups (22-XX) 34 Convex and discrete geometry (52-XX) 31 Operations research, mathematical programming (90-XX) 30 Global analysis, analysis on manifolds (58-XX) 29 Mechanics of particles and systems (70-XX) 29 Systems theory; control (93-XX) 26 Biology and other natural sciences (92-XX) 23 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 20 Algebraic geometry (14-XX) 20 Integral equations (45-XX) 20 Classical thermodynamics, heat transfer (80-XX) 19 Calculus of variations and optimal control; optimization (49-XX) 19 Mechanics of deformable solids (74-XX) 15 Quantum theory (81-XX) 14 Information and communication theory, circuits (94-XX) 12 Manifolds and cell complexes (57-XX) 11 Abstract harmonic analysis (43-XX) 10 Field theory and polynomials (12-XX) 10 Geometry (51-XX) 9 Several complex variables and analytic spaces (32-XX) 9 Relativity and gravitational theory (83-XX) 8 Geophysics (86-XX) 7 History and biography (01-XX) 7 Potential theory (31-XX) 7 Statistics (62-XX) 6 Integral transforms, operational calculus (44-XX) 5 General and overarching topics; collections (00-XX) 4 Statistical mechanics, structure of matter (82-XX) 4 Astronomy and astrophysics (85-XX) 2 Optics, electromagnetic theory (78-XX) 2 Mathematics education (97-XX) 1 $$K$$-theory (19-XX)