Edit Profile (opens in new tab) Gregorac, Robert J. Co-Author Distance Author ID: gregorac.robert-j Published as: Gregorac, R. J.; Gregorac, Robert J.; Gregorac, R. more...less External Links: MGP Documents Indexed: 25 Publications since 1966 Co-Authors: 5 Co-Authors with 7 Joint Publications 91 Co-Co-Authors Co-Authors 17 single-authored 3 Allenby, R. B. J. T. 1 Dedieu, Jean-Pierre 1 Feustel, Charles D. 1 Hentzel, Irvin Roy 1 Meany, Robert all top 5 Serials 3 Proceedings of the American Mathematical Society 3 Journal of the Australian Mathematical Society 2 Geometriae Dedicata 2 International Journal of Mathematics and Mathematical Sciences 2 Journal of Geometry 1 American Mathematical Monthly 1 Revue Roumaine de Mathématiques Pures et Appliquées 1 Journal of Algebra 1 Journal of Pure and Applied Algebra 1 Mathematische Zeitschrift 1 Monatshefte für Mathematik 1 Pacific Journal of Mathematics 1 European Journal of Combinatorics 1 Note di Matematica 1 Linear Algebra and its Applications 1 Nieuw Archief voor Wiskunde. Vierde Serie 1 Journal of the London Mathematical Society all top 5 Fields 8 Geometry (51-XX) 6 Group theory and generalizations (20-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Real functions (26-XX) 2 Harmonic analysis on Euclidean spaces (42-XX) 2 Functional analysis (46-XX) 2 Convex and discrete geometry (52-XX) 1 Field theory and polynomials (12-XX) 1 Special functions (33-XX) 1 Approximations and expansions (41-XX) 1 Manifolds and cell complexes (57-XX) 1 Probability theory and stochastic processes (60-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 16 Publications have been cited 65 times in 58 Documents Cited by ▼ Year ▼ On locally extended residually finite groups. Zbl 0263.20020 Allenby, R. B. J. T.; Gregorac, R. J. 23 1973 A note on the analogue of Oppenheim’s inequality for permanents. Zbl 0621.15012 Gregorac, R. J.; Hentzel, Irvin Roy 7 1987 On permutational products of groups. Zbl 0195.03801 Gregorac, R. J. 6 1969 On residually finite generalized free products. Zbl 0215.10801 Gregorac, R. J. 6 1970 On generalized free products of finite extensions of free groups. Zbl 0145.02401 Gregorac, R. 4 1966 On realizing HNN groups in 3-manifolds. Zbl 0262.55002 Feustel, C. D.; Gregorac, R. J. 3 1973 The Yang-Zhang inequality. Zbl 0879.51011 Gregorac, Robert J. 3 1996 Generalised free products which are free products of locally extended residually finite groups. Zbl 0204.34401 Allenby, R. B. J. T.; Gregorac, R. J. 3 1971 Corrigendum: Obreschkoff’s theorem revisited: What convex sets are contained in the set of hyperbolic polynomials? Zbl 0819.12001 Dedieu, Jean Pierre; Gregorac, R. J. 2 1994 Residual finiteness of permutational products. Zbl 0217.35903 Gregorac, R. J. 2 1969 Residual properties of nilpotent and supersolvable groups. Zbl 0259.20023 Allenby, R. B. J. T.; Gregorac, R. J. 1 1972 Stenger’s conjecture on independent events. Zbl 0784.60013 Gregorac, R. J.; Meany, Robert 1 1992 Feuerbach’s relation and Ptolemy’s theorem in \(\mathbb{R}^ n\). Zbl 0849.51011 Gregorac, R. J. 1 1996 On polynomials with simple trigonometric formulas. Zbl 1075.42001 Gregorac, R. J. 1 2004 A note on finitely generated groups. Zbl 0149.26802 Gregorac, R. J. 1 1967 A law of cosines in \(\mathbb{R}^ n\). Zbl 0761.51013 Gregorac, R. J. 1 1991 On polynomials with simple trigonometric formulas. Zbl 1075.42001 Gregorac, R. J. 1 2004 The Yang-Zhang inequality. Zbl 0879.51011 Gregorac, Robert J. 3 1996 Feuerbach’s relation and Ptolemy’s theorem in \(\mathbb{R}^ n\). Zbl 0849.51011 Gregorac, R. J. 1 1996 Corrigendum: Obreschkoff’s theorem revisited: What convex sets are contained in the set of hyperbolic polynomials? Zbl 0819.12001 Dedieu, Jean Pierre; Gregorac, R. J. 2 1994 Stenger’s conjecture on independent events. Zbl 0784.60013 Gregorac, R. J.; Meany, Robert 1 1992 A law of cosines in \(\mathbb{R}^ n\). Zbl 0761.51013 Gregorac, R. J. 1 1991 A note on the analogue of Oppenheim’s inequality for permanents. Zbl 0621.15012 Gregorac, R. J.; Hentzel, Irvin Roy 7 1987 On locally extended residually finite groups. Zbl 0263.20020 Allenby, R. B. J. T.; Gregorac, R. J. 23 1973 On realizing HNN groups in 3-manifolds. Zbl 0262.55002 Feustel, C. D.; Gregorac, R. J. 3 1973 Residual properties of nilpotent and supersolvable groups. Zbl 0259.20023 Allenby, R. B. J. T.; Gregorac, R. J. 1 1972 Generalised free products which are free products of locally extended residually finite groups. Zbl 0204.34401 Allenby, R. B. J. T.; Gregorac, R. J. 3 1971 On residually finite generalized free products. Zbl 0215.10801 Gregorac, R. J. 6 1970 On permutational products of groups. Zbl 0195.03801 Gregorac, R. J. 6 1969 Residual finiteness of permutational products. Zbl 0217.35903 Gregorac, R. J. 2 1969 A note on finitely generated groups. Zbl 0149.26802 Gregorac, R. J. 1 1967 On generalized free products of finite extensions of free groups. Zbl 0145.02401 Gregorac, R. 4 1966 all cited Publications top 5 cited Publications all top 5 Cited by 80 Authors 5 Allenby, R. B. J. T. 3 Wong, Peng Choon 2 Gitik, Rita 2 Leinen, Felix 2 Leng, Gangsong 2 Metaftsis, Vasileios 2 Minasyan, Ashot 2 Moldavanskiĭ, D. I. 2 Raptis, E. 2 Tang, Chi Yu 2 Wu, Donghua 2 Zhang, Fuzhen 1 Aab, Michael 1 Almeida, Kisnney 1 Asri, Muhammad Sufi Mohd 1 Ateş, Firat 1 Autebert, Jean-Michel 1 Azarov, Dmitriĭ Nikolaevich 1 Boasson, Luc 1 Çevik, Ahmet Sinan 1 Cheon, Gi-Sang 1 Cho, E. C. 1 Chudnovsky, Maria 1 Crispim, Carolina Martins 1 Delattre, Cédric 1 Drury, Stephen William 1 Fonte, Christophe 1 Friedl, Stefan 1 Gemignani, Luca 1 Gregorac, Robert J. 1 Hickin, Kenneth Keller 1 Hutchinson, George K. 1 Karrass, Abraham 1 Kim, Goansu 1 Koay, H. L. 1 Kublanovskii, Stanislav Itskhokovich 1 Kudlinska, Monika 1 Lima, Igor 1 Maehara, Hiroshi 1 Marcus, Marvin D. 1 Martini, Horst 1 Mizuno, Gabriel Perez 1 Muller, David E. 1 Niblo, Graham A. 1 Noskov, Guennadi A. 1 O’Reilly, Gerard 1 Othman, Wan Ainun Mior 1 Paksoy, Vehbi Emrah 1 Pietrowski, Alfred 1 Pizzinga, Adrian 1 Plotkin, Boris 1 Potyagajlo, L. D. 1 Quick, Martyn 1 Remeslennikov, Vladimir Nikanorovich 1 Rips, Eliyahu 1 Robinson, Derek J. S. 1 Roman’kov, Vitaly Anatol’evich 1 Rosenberger, Gerhard 1 Ruškuc, Nik 1 Russo, Alessio 1 Sandy, Markus 1 Schupp, Paul E. 1 Sénizergues, Géraud 1 Seymour, Paul D. 1 Shen, Zhu 1 Shirvani, Maziar 1 Silver, Daniel S. 1 Sokolov, Evgeny Viktorovich 1 Solitar, Donald M. 1 Tang, Lihua 1 Tian, Weiwen 1 Uskova, A. A. 1 Vincenzi, Giovanni 1 Wanless, Ian M. 1 Williams, Susan G. 1 Wise, Daniel T. 1 Wong, Kok Bin 1 Yokoyama, Misako 1 Zhou, Wei 1 Zhou, Yongguo all top 5 Cited in 36 Serials 4 Journal of Algebra 4 Proceedings of the American Mathematical Society 3 Archiv der Mathematik 3 Transactions of the American Mathematical Society 2 Journal of Mathematical Analysis and Applications 2 Mathematical Notes 2 Rocky Mountain Journal of Mathematics 2 Bulletin of the London Mathematical Society 2 Journal of Computer and System Sciences 2 Journal of Soviet Mathematics 2 Results in Mathematics 2 Applied Mathematics Letters 2 Linear Algebra and its Applications 2 ELA. The Electronic Journal of Linear Algebra 2 Chebyshevskiĭ Sbornik 2 Special Matrices 1 Communications in Algebra 1 International Journal of Mathematical Education in Science and Technology 1 Israel Journal of Mathematics 1 Linear and Multilinear Algebra 1 Applied Mathematics and Computation 1 Journal of Combinatorial Theory. Series B 1 Journal of Pure and Applied Algebra 1 Mathematische Annalen 1 Mathematische Zeitschrift 1 Monatshefte für Mathematik 1 Rendiconti del Seminario Matematico della Università di Padova 1 Siberian Mathematical Journal 1 Topology and its Applications 1 Systems & Control Letters 1 Bulletin of the Korean Mathematical Society 1 International Journal of Algebra and Computation 1 IMRN. International Mathematics Research Notices 1 St. Petersburg Mathematical Journal 1 Acta Mathematica Sinica. English Series 1 Journal of the Australian Mathematical Society all top 5 Cited in 15 Fields 38 Group theory and generalizations (20-XX) 8 Linear and multilinear algebra; matrix theory (15-XX) 8 Manifolds and cell complexes (57-XX) 4 Geometry (51-XX) 2 General algebraic systems (08-XX) 2 Convex and discrete geometry (52-XX) 2 Computer science (68-XX) 1 History and biography (01-XX) 1 Combinatorics (05-XX) 1 Associative rings and algebras (16-XX) 1 Real functions (26-XX) 1 Probability theory and stochastic processes (60-XX) 1 Numerical analysis (65-XX) 1 Systems theory; control (93-XX) 1 Mathematics education (97-XX) Citations by Year