## Walsh, Timothy R. S.

Compute Distance To:
 Author ID: walsh.timothy-r-s Published as: Walsh, T. R.; Walsh, T. R. S.; Walsh, Timothy R.; Walsh, Timothy R. S.; Walsh, T.
 Documents Indexed: 74 Publications since 1962, including 1 Book Reviewing Activity: 264 Reviews Co-Authors: 12 Co-Authors with 21 Joint Publications 206 Co-Co-Authors
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### Co-Authors

 45 single-authored 7 Liskovets, Valery A. 4 Lehman, A. B. 4 Torres, Monica 3 Giorgetti, Alain 2 Auger, Pierre M. 2 Demkowicz, Leszek F. 1 Atkinson, H. H. 1 Bajer, Anetta M. 1 Chopp, David L. 1 Dewdney, A. K. 1 Gagarin, Andrei 1 Gargantini, Irene 1 Gerdes, Klaus 1 Koganov, Leonid M. 1 Labelle, Gilbert 1 Leroux, Pierre 1 Mednykh, Aleksandr Dmitrievich 1 Ramanath, M. V. S. 1 Robinson, Robert W. 1 Schwab, Christoph 1 Vajnovszki, Vincent 1 Wright, Edward Maitland
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### Serials

 9 Journal of Combinatorial Theory. Series B 4 Discrete Mathematics 4 Studia Mathematica 3 Information Processing Letters 3 Ars Combinatoria 3 Canadian Journal of Mathematics 2 Soviet Mathematics. Doklady 2 Advances in Applied Mathematics 2 JCMCC. The Journal of Combinatorial Mathematics and Combinatorial Computing 2 Congressus Numerantium 2 The Journal of Artificial Intelligence Research (JAIR) 2 Journal of Computational Acoustics 2 Ars Mathematica Contemporanea 1 Computers & Mathematics with Applications 1 Computer Methods in Applied Mechanics and Engineering 1 Physics Letters. A 1 The Mathematical Intelligencer 1 Geometriae Dedicata 1 Journal of Graph Theory 1 Journal of the London Mathematical Society. Second Series 1 Memoirs of the American Mathematical Society 1 Michigan Mathematical Journal 1 Proceedings of the American Mathematical Society 1 Theoretical Computer Science 1 Transactions of the American Mathematical Society 1 Journal of Algorithms 1 European Journal of Combinatorics 1 SIAM Journal on Algebraic and Discrete Methods 1 SIAM Journal on Applied Mathematics 1 Computer Vision, Graphics, and Image Processing 1 Computing and Visualization in Science 1 Journal of Integer Sequences 1 Interfaces and Free Boundaries 1 Journal of Discrete Algorithms 1 Bulletin of the American Mathematical Society
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### Fields

 38 Combinatorics (05-XX) 23 Computer science (68-XX) 6 Harmonic analysis on Euclidean spaces (42-XX) 5 Functional analysis (46-XX) 4 Fluid mechanics (76-XX) 3 Potential theory (31-XX) 2 Partial differential equations (35-XX) 2 Integral transforms, operational calculus (44-XX) 2 Integral equations (45-XX) 1 General and overarching topics; collections (00-XX) 1 Mathematical logic and foundations (03-XX) 1 Number theory (11-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Real functions (26-XX) 1 Functions of a complex variable (30-XX) 1 Operator theory (47-XX) 1 Calculus of variations and optimal control; optimization (49-XX) 1 Geometry (51-XX) 1 Convex and discrete geometry (52-XX) 1 Differential geometry (53-XX) 1 Numerical analysis (65-XX) 1 Mechanics of deformable solids (74-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Biology and other natural sciences (92-XX) 1 Information and communication theory, circuits (94-XX)

### Citations contained in zbMATH Open

54 Publications have been cited 517 times in 255 Documents Cited by Year
Hypermaps versus bipartite maps. Zbl 0302.05101
Walsh, T. R. S.
1975
Counting rooted maps by genus. I. Zbl 0228.05108
Walsh, T. R. S.; Lehman, A. B.
1972
On the function of Marcinkiewicz-Stein. Zbl 0212.13603
Walsh, T.
1972
Counting rooted maps by genus. III: Nonseparable maps. Zbl 0299.05110
Walsh, T. R. S.; Lehman, A. B.
1975
Counting labelled three-connected and homeomorphically irreducible two- connected graphs. Zbl 0449.05031
Walsh, T. R. S.
1982
The towers of Hanoi revisited: Moving the rings by counting the moves. Zbl 0487.90099
Walsh, T. R.
1982
Counting rooted maps by genus. II. Zbl 0228.05109
Walsh, T.; Lehman, A. B.
1972
HP90: A general and flexible Fortran 90 $$hp$$-FE code. Zbl 0912.68014
Demkowicz, L.; Gerdes, K.; Schwab, C.; Bajer, A.; Walsh, T.
1998
Counting unlabelled three-connected and homeomorphically irreducible two- connected graphs. Zbl 0449.05032
Walsh, T. R. S.
1982
Generating Gray codes in $$O(1)$$ worst-case time per word. Zbl 1038.68566
Walsh, Timothy
2003
Gray codes for involutions. Zbl 0979.68046
Walsh, Timothy
2001
Loop-free sequencing of bounded integer compositions. Zbl 0961.68102
Walsh, Timothy R.
2000
Counting non-isomorphic three-connected planar maps. Zbl 0443.05050
Walsh, T. R. S.
1982
Enumeration of Eulerian and unicursal planar maps. Zbl 1051.05049
Liskovets, Valery A.; Walsh, Timothy R. S.
2004
The dual of $$H^p (R^n_+)$$ for $$p<1$$. Zbl 0255.46043
Walsh, T.
1973
Iteration strikes back - at the cyclic Towers of Hanoi. Zbl 0508.68020
Walsh, T. R.
1983
The enumeration of non-isomorphic 2-connected planar maps. Zbl 0519.05041
Liskovets, V. A.; Walsh, T. R. S.
1983
Where are the hard manipulation problems? Zbl 1234.68391
Walsh, T.
2011
Efficient enumeration of rooted maps of a given orientable genus by number of faces and vertices. Zbl 1317.05090
Walsh, Timothy R. S.; Giorgetti, Alain
2014
A divergence critic for inductive proof. Zbl 0900.68383
Walsh, T.
1996
Finite element methods for nonlinear acoustics in fluids. Zbl 1203.76089
Walsh, Timothy; Torres, Monica
2007
Existence of traveling wave solutions of a high-order nonlinear acoustic wave equation. Zbl 1228.76143
Chen, Min; Torres, Monica; Walsh, Timothy
2009
Ten steps to counting planar graphs. Zbl 0647.05030
Liskovets, V. A.; Walsh, T. R.
1987
On $$L^ p$$ estimates for integral transforms. Zbl 0212.14803
Walsh, T.
1971
Generating nonisomorphic maps without storing them. Zbl 0521.05034
Walsh, T. R.
1983
Structure and enumeration of two-connected graphs with prescribed three-connected components. Zbl 1228.05172
Gagarin, Andrei; Labelle, Gilbert; Leroux, Pierre; Walsh, Timothy
2009
Characterizing the vertex neighbourhoods of semi-regular polyhedra. Zbl 0242.52005
Walsh, T. R. S.
1972
A polynomial-time algorithm for counting rooted toroidal maps. Zbl 0553.05041
Walsh, T. R.
1983
Generation of well-formed parenthesis strings in constant worst-case time. Zbl 0936.68115
Walsh, Timothy R.
1998
$$hp$$ boundary element modeling of the external human auditory system – goal-oriented adaptivity with multiple load vectors. Zbl 1083.76561
Walsh, Timothy; Demkowicz, Leszek
2003
Counting maps on doughnuts. Zbl 1301.05179
Walsh, Timothy R.
2013
Efficient enumeration of sensed planar maps. Zbl 1063.05070
Walsh, Timothy R.
2005
Inversion of cycle index sum relations for 2- and 3-connected graphs. Zbl 0728.05026
Robinson, R. W.; Walsh, T. R.
1993
Enumeration of unrooted orientable maps of arbitrary genus by number of edges and vertices. Zbl 1246.05076
Walsh, Timothy R. S.; Giorgetti, Alain; Mednykh, Alexander
2012
The k-connectedness of unlabelled graphs. Zbl 0367.05044
Walsh, T. R. S.; Wright, E. M.
1978
A loop-free two-close Gray-code algorithm for listing $$k$$-ary Dyck words. Zbl 1109.68083
Vajnovszki, Vincent; Walsh, Timothy
2006
Space-efficient generation of nonisomorphic maps and hypermaps. Zbl 1327.05158
Walsh, Timothy R.
2015
Counting unrooted loopless planar maps. Zbl 1070.05050
Liskovets, Valery A.; Walsh, Timothy R.
2005
On the summation of conjugate Fourier integrals of functions of several variables. Zbl 0259.42037
Walsh, T.
1972
Counting rooted maps by genus. II. Erratum. Zbl 0261.05105
Walsh, T.; Lehman, A. B.
1973
How evenly should one divide to conquer quickly? Zbl 0549.68034
Walsh, T. R.
1984
Counting regions, holes, and their nesting level in time proportional to the border. Zbl 0622.68077
Atkinson, H. H.; Gargantini, I.; Walsh, T. R. S.
1985
On the size of quadtrees generalized to d-dimensional binary pictures. Zbl 0577.68080
Walsh, T. R.
1985
Total vertex enumeration in rooted planar maps. Zbl 0993.05087
Koganov, Leonid M.; Liskovets, Valery A.; Walsh, Timothy R. S.
2000
Counting unrooted maps on the plane. Zbl 1112.05054
Liskovets, Valery A.; Walsh, Timothy R.
2006
Finite element methods for nonlinear acoustics in fluids. Zbl 1257.76059
Walsh, Timothy; Torres, Monica
2007
On weighted norm inequalities for fractional and singular integrals. Zbl 0221.44006
Walsh, T.
1971
Enumeration of hypermaps of a given genus. Zbl 1404.05084
Giorgetti, Alain; Walsh, Timothy R. S.
2018
On summability methods for conjugate Fourier-Stieltjes integrals in several variables and generalizations. Zbl 0259.42038
Walsh, T.
1973
A case for iteration. Zbl 0527.68017
Walsh, T. R.
1983
The busy beaver on a one-way infinite tape. Zbl 0565.68048
Walsh, T. R. S.
1982
Worst-case analysis of Read’s chromatic polynomial algorithm. Zbl 0933.05049
Walsh, Timothy R.
1997
Enumeration and generation of a class of regular digraphs. Zbl 0652.05020
Ramanath, M. V. S.; Walsh, T. R.
1987
On the existence of double singular integrals for kernels without smoothness. Zbl 0211.41901
Walsh, T.
1971
Enumeration of hypermaps of a given genus. Zbl 1404.05084
Giorgetti, Alain; Walsh, Timothy R. S.
2018
Space-efficient generation of nonisomorphic maps and hypermaps. Zbl 1327.05158
Walsh, Timothy R.
2015
Efficient enumeration of rooted maps of a given orientable genus by number of faces and vertices. Zbl 1317.05090
Walsh, Timothy R. S.; Giorgetti, Alain
2014
Counting maps on doughnuts. Zbl 1301.05179
Walsh, Timothy R.
2013
Enumeration of unrooted orientable maps of arbitrary genus by number of edges and vertices. Zbl 1246.05076
Walsh, Timothy R. S.; Giorgetti, Alain; Mednykh, Alexander
2012
Where are the hard manipulation problems? Zbl 1234.68391
Walsh, T.
2011
Existence of traveling wave solutions of a high-order nonlinear acoustic wave equation. Zbl 1228.76143
Chen, Min; Torres, Monica; Walsh, Timothy
2009
Structure and enumeration of two-connected graphs with prescribed three-connected components. Zbl 1228.05172
Gagarin, Andrei; Labelle, Gilbert; Leroux, Pierre; Walsh, Timothy
2009
Finite element methods for nonlinear acoustics in fluids. Zbl 1203.76089
Walsh, Timothy; Torres, Monica
2007
Finite element methods for nonlinear acoustics in fluids. Zbl 1257.76059
Walsh, Timothy; Torres, Monica
2007
A loop-free two-close Gray-code algorithm for listing $$k$$-ary Dyck words. Zbl 1109.68083
Vajnovszki, Vincent; Walsh, Timothy
2006
Counting unrooted maps on the plane. Zbl 1112.05054
Liskovets, Valery A.; Walsh, Timothy R.
2006
Efficient enumeration of sensed planar maps. Zbl 1063.05070
Walsh, Timothy R.
2005
Counting unrooted loopless planar maps. Zbl 1070.05050
Liskovets, Valery A.; Walsh, Timothy R.
2005
Enumeration of Eulerian and unicursal planar maps. Zbl 1051.05049
Liskovets, Valery A.; Walsh, Timothy R. S.
2004
Generating Gray codes in $$O(1)$$ worst-case time per word. Zbl 1038.68566
Walsh, Timothy
2003
$$hp$$ boundary element modeling of the external human auditory system – goal-oriented adaptivity with multiple load vectors. Zbl 1083.76561
Walsh, Timothy; Demkowicz, Leszek
2003
Gray codes for involutions. Zbl 0979.68046
Walsh, Timothy
2001
Loop-free sequencing of bounded integer compositions. Zbl 0961.68102
Walsh, Timothy R.
2000
Total vertex enumeration in rooted planar maps. Zbl 0993.05087
Koganov, Leonid M.; Liskovets, Valery A.; Walsh, Timothy R. S.
2000
HP90: A general and flexible Fortran 90 $$hp$$-FE code. Zbl 0912.68014
Demkowicz, L.; Gerdes, K.; Schwab, C.; Bajer, A.; Walsh, T.
1998
Generation of well-formed parenthesis strings in constant worst-case time. Zbl 0936.68115
Walsh, Timothy R.
1998
Worst-case analysis of Read’s chromatic polynomial algorithm. Zbl 0933.05049
Walsh, Timothy R.
1997
A divergence critic for inductive proof. Zbl 0900.68383
Walsh, T.
1996
Inversion of cycle index sum relations for 2- and 3-connected graphs. Zbl 0728.05026
Robinson, R. W.; Walsh, T. R.
1993
Ten steps to counting planar graphs. Zbl 0647.05030
Liskovets, V. A.; Walsh, T. R.
1987
Enumeration and generation of a class of regular digraphs. Zbl 0652.05020
Ramanath, M. V. S.; Walsh, T. R.
1987
Counting regions, holes, and their nesting level in time proportional to the border. Zbl 0622.68077
Atkinson, H. H.; Gargantini, I.; Walsh, T. R. S.
1985
On the size of quadtrees generalized to d-dimensional binary pictures. Zbl 0577.68080
Walsh, T. R.
1985
How evenly should one divide to conquer quickly? Zbl 0549.68034
Walsh, T. R.
1984
Iteration strikes back - at the cyclic Towers of Hanoi. Zbl 0508.68020
Walsh, T. R.
1983
The enumeration of non-isomorphic 2-connected planar maps. Zbl 0519.05041
Liskovets, V. A.; Walsh, T. R. S.
1983
Generating nonisomorphic maps without storing them. Zbl 0521.05034
Walsh, T. R.
1983
A polynomial-time algorithm for counting rooted toroidal maps. Zbl 0553.05041
Walsh, T. R.
1983
A case for iteration. Zbl 0527.68017
Walsh, T. R.
1983
Counting labelled three-connected and homeomorphically irreducible two- connected graphs. Zbl 0449.05031
Walsh, T. R. S.
1982
The towers of Hanoi revisited: Moving the rings by counting the moves. Zbl 0487.90099
Walsh, T. R.
1982
Counting unlabelled three-connected and homeomorphically irreducible two- connected graphs. Zbl 0449.05032
Walsh, T. R. S.
1982
Counting non-isomorphic three-connected planar maps. Zbl 0443.05050
Walsh, T. R. S.
1982
The busy beaver on a one-way infinite tape. Zbl 0565.68048
Walsh, T. R. S.
1982
The k-connectedness of unlabelled graphs. Zbl 0367.05044
Walsh, T. R. S.; Wright, E. M.
1978
Hypermaps versus bipartite maps. Zbl 0302.05101
Walsh, T. R. S.
1975
Counting rooted maps by genus. III: Nonseparable maps. Zbl 0299.05110
Walsh, T. R. S.; Lehman, A. B.
1975
The dual of $$H^p (R^n_+)$$ for $$p<1$$. Zbl 0255.46043
Walsh, T.
1973
Counting rooted maps by genus. II. Erratum. Zbl 0261.05105
Walsh, T.; Lehman, A. B.
1973
On summability methods for conjugate Fourier-Stieltjes integrals in several variables and generalizations. Zbl 0259.42038
Walsh, T.
1973
Counting rooted maps by genus. I. Zbl 0228.05108
Walsh, T. R. S.; Lehman, A. B.
1972
On the function of Marcinkiewicz-Stein. Zbl 0212.13603
Walsh, T.
1972
Counting rooted maps by genus. II. Zbl 0228.05109
Walsh, T.; Lehman, A. B.
1972
Characterizing the vertex neighbourhoods of semi-regular polyhedra. Zbl 0242.52005
Walsh, T. R. S.
1972
On the summation of conjugate Fourier integrals of functions of several variables. Zbl 0259.42037
Walsh, T.
1972
On $$L^ p$$ estimates for integral transforms. Zbl 0212.14803
Walsh, T.
1971
On weighted norm inequalities for fractional and singular integrals. Zbl 0221.44006
Walsh, T.
1971
On the existence of double singular integrals for kernels without smoothness. Zbl 0211.41901
Walsh, T.
1971
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### Cited by 241 Authors

 18 Walsh, Timothy R. S. 12 Liu, Yanpei 9 Arquès, Didier G. 9 Chapuy, Guillaume 9 Jones, Gareth A. 9 Nedela, Roman 9 Noy, Marc 8 Breda d’Azevedo, Antonio J. 8 Er, Mingcheng 8 Giménez, Omer 8 Krasko, Evgeniĭ S. 7 Liskovets, Valery A. 7 Mednykh, Aleksandr Dmitrievich 7 Omel’Chenko, Alexander V. 7 Selvakumar, Krishnan 7 Vajnovszki, Vincent 6 Bender, Edward A. 6 Cori, Robert 6 Fusy, Éric 6 Giorgetti, Alain 6 Ren, Han 6 Rué, Juanjo 5 Bernardi, Olivier 4 Gagarin, Andrei 4 Jackson, David M. 4 Kang, Mihyun 4 Labelle, Gilbert 4 Leroux, Pierre 4 Li, Zhaoxiang 4 Long, Shude 4 Ramanathan, V. 4 Wormald, Nicholas Charles 3 Amritha, V. C. 3 Baril, Jean-Luc 3 Bodirsky, Manuel 3 Cai, Junliang 3 Chen, Ricky X. F. 3 Dillon, Tharam Singh 3 Drmota, Michael 3 Gao, Zhicheng 3 Lehman, A. B. 3 Lionni, Luca 3 Lu, Xuemiao 3 Machi, Antonio 3 Stahl, Saul 2 Addario-Berry, Louigi 2 Bonzom, Valentin 2 Brown, Daniel R. L. 2 Canfield, E. Rodney 2 Catalano, Domenico A. 2 Do, Norman 2 Du, Shaofei 2 Dulucq, Serge 2 Fang, Wenjie 2 Fernandes, Maria Elisa 2 Gopalakrishna, K. 2 Gröpl, Clemens 2 Grünbaum, Branko 2 James, Lynne D. 2 Kazaryan, Maxim Eduardovich 2 Klavík, Pavel 2 Labelle, Patrick 2 Lewanski, Danilo 2 Mao, Linfan 2 Micheli, Anne 2 Mütze, Torsten 2 Panagiotou, Konstantinos D. 2 Pettorossi, Alberto 2 Requilé, Clément 2 Richmond, L. Bruce 2 Robinson, Robert W. 2 Ruskey, Frank 2 Schaeffer, Gilles 2 Shadrin, Sergey V. 2 Shramchenko, Vasilisa 2 Standke, Christoph 2 Vázquez-Ávila, Adrián 2 Visentin, Terry I. 2 Wiechert, Veit 2 Wright, Edward Maitland 2 Zeilberger, Noam 2 Zograf, Peter 1 Acharya, Raj 1 Alfaro Montúfar, Carlos Alejandro 1 Allouche, Jean-Paul Simon 1 Anisimov, Anatoly V. 1 Araujo-Pardo, Gabriela 1 Barrett, Jordan Mitchell 1 Béraud, Jean-François 1 Bernasconi, Nicla 1 Besrour, Khalil 1 Bibak, Khodakhast 1 Bilotta, Stefano 1 Birmajer, Daniel 1 Bonichon, Nicolas 1 Borot, Gaëtan 1 Brandes, Ulrik 1 Cai, Leizhen 1 Cangelmi, Leonardo 1 Chan, Tat-Hung ...and 141 more Authors
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### Cited in 87 Serials

 27 Discrete Mathematics 24 Journal of Combinatorial Theory. Series B 21 European Journal of Combinatorics 17 Theoretical Computer Science 10 Journal of Combinatorial Theory. Series A 9 The Electronic Journal of Combinatorics 7 Advances in Applied Mathematics 7 International Journal of Computer Mathematics 5 Discrete Applied Mathematics 5 Information Processing Letters 5 Random Structures & Algorithms 5 Journal of Mathematical Sciences (New York) 4 Journal of Information & Optimization Sciences 4 Mathematical and Computer Modelling 4 Journal of Algebraic Combinatorics 4 Combinatorics, Probability and Computing 3 Mathematica Slovaca 3 Journal of High Energy Physics 3 AKCE International Journal of Graphs and Combinatorics 3 Ars Mathematica Contemporanea 2 Communications in Mathematical Physics 2 Information Sciences 2 Transactions of the American Mathematical Society 2 Acta Mathematicae Applicatae Sinica. English Series 2 Graphs and Combinatorics 2 Elemente der Mathematik 2 Journal of Knot Theory and its Ramifications 2 Acta Mathematica Sinica. English Series 2 JMMA. Journal of Mathematical Modelling and Algorithms 2 Journal of Discrete Algorithms 1 Acta Informatica 1 Communications in Algebra 1 Computers & Mathematics with Applications 1 Indian Journal of Pure & Applied Mathematics 1 Journal of Mathematical Physics 1 Letters in Mathematical Physics 1 Nuclear Physics. B 1 Rocky Mountain Journal of Mathematics 1 The Mathematical Intelligencer 1 Beiträge zur Algebra und Geometrie 1 Archiv der Mathematik 1 BIT 1 Canadian Journal of Mathematics 1 Computing 1 Czechoslovak Mathematical Journal 1 Fundamenta Mathematicae 1 Geometriae Dedicata 1 Glasgow Mathematical Journal 1 International Journal of Computer & Information Sciences 1 Journal of Algebra 1 Journal of Computer and System Sciences 1 Journal of Number Theory 1 Results in Mathematics 1 Ricerche di Matematica 1 SIAM Journal on Algebraic and Discrete Methods 1 Probability Theory and Related Fields 1 Discrete & Computational Geometry 1 Journal of the American Mathematical Society 1 SIAM Journal on Discrete Mathematics 1 Publicacions Matemàtiques 1 Formal Aspects of Computing 1 International Journal of Mathematics 1 International Journal of Algebra and Computation 1 Annales de l’Institut Henri Poincaré. Probabilités et Statistiques 1 RAIRO. Informatique Théorique et Applications 1 Indagationes Mathematicae. New Series 1 Cybernetics and Systems Analysis 1 Applied Mathematics. Series B (English Edition) 1 St. Petersburg Mathematical Journal 1 Boletín de la Sociedad Matemática Mexicana. Third Series 1 Documenta Mathematica 1 Journal of Combinatorial Optimization 1 Journal of Group Theory 1 Annals of Combinatorics 1 Journal of Applied Mathematics and Computing 1 Quantum Information Processing 1 International Journal of Quantum Information 1 Mediterranean Journal of Mathematics 1 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications 1 Journal of Mathematics and the Arts 1 Logical Methods in Computer Science 1 Discrete Mathematics, Algorithms and Applications 1 Random Matrices: Theory and Applications 1 Analysis and Mathematical Physics 1 Journal of Mathematical Modelling and Algorithms in Operations Research 1 Dependence Modeling 1 Annales Fennici Mathematici
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### Cited in 34 Fields

 196 Combinatorics (05-XX) 58 Computer science (68-XX) 18 Manifolds and cell complexes (57-XX) 16 Group theory and generalizations (20-XX) 11 Quantum theory (81-XX) 10 Algebraic geometry (14-XX) 9 Convex and discrete geometry (52-XX) 9 Probability theory and stochastic processes (60-XX) 8 Number theory (11-XX) 7 Commutative algebra (13-XX) 6 Functions of a complex variable (30-XX) 6 Geometry (51-XX) 4 Dynamical systems and ergodic theory (37-XX) 4 Information and communication theory, circuits (94-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 2 Mathematical logic and foundations (03-XX) 2 Order, lattices, ordered algebraic structures (06-XX) 2 Category theory; homological algebra (18-XX) 2 Functional analysis (46-XX) 2 Statistical mechanics, structure of matter (82-XX) 2 Relativity and gravitational theory (83-XX) 2 Operations research, mathematical programming (90-XX) 1 General and overarching topics; collections (00-XX) 1 History and biography (01-XX) 1 Field theory and polynomials (12-XX) 1 Nonassociative rings and algebras (17-XX) 1 Special functions (33-XX) 1 Difference and functional equations (39-XX) 1 Differential geometry (53-XX) 1 General topology (54-XX) 1 Algebraic topology (55-XX) 1 Statistics (62-XX) 1 Numerical analysis (65-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX)