Edit Profile Wittstock, Gerd Compute Distance To: Compute Author ID: wittstock.gerd Published as: Wittstock, G.; Wittstock, Gerd Documents Indexed: 22 Publications since 1964 all top 5 Co-Authors 14 single-authored 2 Behrends, Ehrhard 2 König, Heinz 2 Schmitt, Lothar M. 1 Hofmeier, Helmut 1 May, Gerhard 1 Neuhardt, Erwin all top 5 Serials 3 Archiv der Mathematik 3 Inventiones Mathematicae 2 Mathematische Annalen 2 Mathematische Zeitschrift 2 Annales Academiae Scientiarum Fennicae. Series A I 1 Communications in Mathematical Physics 1 Journal of Functional Analysis 1 Mathematica Scandinavica 1 Journal of Operator Theory 1 Expositiones Mathematicae Fields 15 Functional analysis (46-XX) 2 Operator theory (47-XX) 1 Convex and discrete geometry (52-XX) 1 Quantum theory (81-XX) 1 Statistical mechanics, structure of matter (82-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH 20 Publications have been cited 163 times in 130 Documents Cited by ▼ Year ▼ Ein operatorwertiger Hahn-Banach Satz. Zbl 0495.46005Wittstock, Gerd 46 1981 Ordered normed tensor products. Zbl 0329.46007Wittstock, Gerd 16 1974 Eine Bemerkung über Tensorprodukte von Banachverbänden. Zbl 0311.46002Wittstock, Gerd 13 1974 A bicommutant theorem for completely bounded module homomorphisms. Zbl 0943.46042Hofmeier, Helmut; Wittstock, Gerd 11 1997 On matrix order and convexity. Zbl 0589.46003Wittstock, Gerd 10 1984 Über Zerlegungsmajoranten indefiniter Metriken. Zbl 0137.09705Wittstock, G. 9 1966 Extension of completely bounded \(C^*\)-module homomorphisms. Zbl 0535.46003Wittstock, G. 8 1984 Characterization of matrix-ordered standard forms of W*-algebras. Zbl 0514.46039Schmitt, Lothar M.; Wittstock, Gerd 8 1982 Choquetsimplexe und nukleare Räume. (Choquet simplexes and nuclear spaces). Zbl 0228.46003Wittstock, Gerd 7 1972 Kernel representation of completely positive Hilbert-Schmidt operators on standard forms. Zbl 0477.46051Schmitt, Lothar M.; Wittstock, Gerd 6 1982 Über invariante Teilräume zu positiven Transformationen in Räumen mit indefiniter Metrik. Zbl 0149.34903Wittstock, G. 5 1967 Über Majoranten indefiniter Bilinearformen. Zbl 0149.08802Wittstock, G. 5 1966 Über koerzive indefinite Metriken. Zbl 0133.06602Wittstock, G. 4 1964 Superconvex sets and \(\sigma{}\)-convex-sets, and the embedding of convex and superconvex spaces. Zbl 0849.46006König, Heinz; Wittstock, Gerd 3 1990 The space of completely bounded module homomorphisms. Zbl 0666.46054May, G.; Neuhardt, E.; Wittstock, G. 3 1989 Tensorprodukte kompakter konvexer Mengen. Zbl 0197.38406Behrends, E.; Wittstock, G. 3 1970 Injectivity of the module tensor product of semi-Ruan modules. Zbl 1240.46082Wittstock, Gerd 2 2011 Tensorprodukte und Simplexe. Zbl 0197.09401Behrends, Ehrhard; Wittstock, Gerd 2 1970 Matrix order and W*-algebras in the operational approach to statistical physical systems. Zbl 0451.46046Wittstock, Gerd 1 1980 Über indefinit symmetrisierbare lineare Abbildungen. Zbl 0185.37903Wittstock, G. 1 1969 Injectivity of the module tensor product of semi-Ruan modules. Zbl 1240.46082Wittstock, Gerd 2 2011 A bicommutant theorem for completely bounded module homomorphisms. Zbl 0943.46042Hofmeier, Helmut; Wittstock, Gerd 11 1997 Superconvex sets and \(\sigma{}\)-convex-sets, and the embedding of convex and superconvex spaces. Zbl 0849.46006König, Heinz; Wittstock, Gerd 3 1990 The space of completely bounded module homomorphisms. Zbl 0666.46054May, G.; Neuhardt, E.; Wittstock, G. 3 1989 On matrix order and convexity. Zbl 0589.46003Wittstock, Gerd 10 1984 Extension of completely bounded \(C^*\)-module homomorphisms. Zbl 0535.46003Wittstock, G. 8 1984 Characterization of matrix-ordered standard forms of W*-algebras. Zbl 0514.46039Schmitt, Lothar M.; Wittstock, Gerd 8 1982 Kernel representation of completely positive Hilbert-Schmidt operators on standard forms. Zbl 0477.46051Schmitt, Lothar M.; Wittstock, Gerd 6 1982 Ein operatorwertiger Hahn-Banach Satz. Zbl 0495.46005Wittstock, Gerd 46 1981 Matrix order and W*-algebras in the operational approach to statistical physical systems. Zbl 0451.46046Wittstock, Gerd 1 1980 Ordered normed tensor products. Zbl 0329.46007Wittstock, Gerd 16 1974 Eine Bemerkung über Tensorprodukte von Banachverbänden. Zbl 0311.46002Wittstock, Gerd 13 1974 Choquetsimplexe und nukleare Räume. (Choquet simplexes and nuclear spaces). Zbl 0228.46003Wittstock, Gerd 7 1972 Tensorprodukte kompakter konvexer Mengen. Zbl 0197.38406Behrends, E.; Wittstock, G. 3 1970 Tensorprodukte und Simplexe. Zbl 0197.09401Behrends, Ehrhard; Wittstock, Gerd 2 1970 Über indefinit symmetrisierbare lineare Abbildungen. Zbl 0185.37903Wittstock, G. 1 1969 Über invariante Teilräume zu positiven Transformationen in Räumen mit indefiniter Metrik. Zbl 0149.34903Wittstock, G. 5 1967 Über Zerlegungsmajoranten indefiniter Metriken. Zbl 0137.09705Wittstock, G. 9 1966 Über Majoranten indefiniter Bilinearformen. Zbl 0149.08802Wittstock, G. 5 1966 Über koerzive indefinite Metriken. Zbl 0133.06602Wittstock, G. 4 1964 all cited Publications top 5 cited Publications all top 5 Cited by 131 Authors 9 Neufang, Matthias 8 Smith, Roger R. 7 Wittstock, Gerd 6 Ruan, Zhongjin 5 Paulsen, Vern Ival 5 Sinclair, Allan M. 4 Bu, Qingying 3 Amini, Massoud 3 Blecher, David P. 3 Christensen, Erik 3 Effros, Edward George 3 Jarchow, Hans 3 Kusraev, Anatoly Georgievich 3 Magajna, Bojan 3 Majewski, Wladyslaw Adam 3 Miura, Yasuhide 3 Schmitt, Lothar M. 3 Tomiyama, Jun 2 Azizov, Tomas Ya. 2 Bukhvalov, Alexander V. 2 Buskes, Gerard J. H. M. 2 Crann, Jason 2 Haagerup, Uffe Valentin 2 Hadwin, Donald W. 2 Helemskii, Alexander Ya. 2 Junge, Marius 2 Le Merdy, Christian 2 Lupini, Martino 2 Neuhardt, Erwin 2 Okayasu, Rui 2 Pisier, Gilles 2 Pumplün, Dieter 2 Sady, Fereshteh 2 Suen, Ching-Yun 2 Tomatsu, Reiji 2 Werner, Reinhard F. 2 Yousefi, Marzieh Shams 1 Abbati, Maria Cristina 1 Akemann, Charles A. 1 Anderson, Joel 1 Barnum, Howard 1 Bartels, Arthur C. 1 Behrends, Ehrhard 1 Bhat, B. V. Rajarama 1 Bluhm, Andreas 1 Bognár, János 1 Boyd, Christopher 1 Burgstaller, Bernhard 1 Caspers, Martijn 1 Christensen, Jens Peter Reus 1 Chu, Choho 1 Connor, Jason N. 1 Craddock, Michelle 1 Dickson, Liam 1 Dimant, Verónica 1 Dong, Zhe 1 Douglas, Christopher L. 1 Echterhoff, Siegfried 1 Fan, Ky 1 Fannes, Mark 1 Farenick, Douglas R. 1 Fernández-Unzueta, Maite 1 Filali, Mahmoud 1 Frank, Michael 1 Gejler, V. A. 1 Gilfeather, Frank L. 1 Hansen, Frank-Peter 1 Henriques, André G. 1 Hess, Peter O. 1 Iokhvidov, I. S. 1 Ji, Donghai 1 Kaufman, William E. 1 Khatskevich, Victor A. 1 Khudalov, V. T. 1 Labuschagne, Louis E. 1 Lai, Wei-Kai 1 Larson, David Royal 1 Li, Weihua 1 Mallick, Nirupama 1 Manià, Alessandro 1 Marciniak, Marcin 1 May, Gerhard 1 Mel’tser, M. M. 1 Meyer-Nieberg, Peter 1 Min, Kyung Chan 1 Muhly, Paul Scott 1 Na, Qiyuan 1 Nachtergaele, Bruno 1 Nechita, Ion 1 Nemesh, Norbert T. 1 Nikpey, Hamed 1 Nishiyama, Kiminao 1 Ortiz, Gerardo 1 Osaka, Hiroyuki 1 Pop, Florin 1 Popa, Nicolae 1 Popescu, Gelu 1 Power, Stephen Charles 1 Qian, Wenhua 1 Ramsay, Arlan B. ...and 31 more Authors all top 5 Cited in 49 Serials 23 Journal of Functional Analysis 10 Mathematische Zeitschrift 7 Journal of Mathematical Analysis and Applications 7 Proceedings of the American Mathematical Society 6 Archiv der Mathematik 5 Integral Equations and Operator Theory 5 Mathematische Annalen 5 Positivity 4 Inventiones Mathematicae 4 Journal of Soviet Mathematics 4 Publications of the Research Institute for Mathematical Sciences, Kyoto University 4 Transactions of the American Mathematical Society 3 Mathematical Notes 3 Duke Mathematical Journal 3 International Journal of Mathematics 2 International Journal of Theoretical Physics 2 Functional Analysis and its Applications 2 Acta Mathematica Hungarica 1 Bulletin of the Australian Mathematical Society 1 Communications in Mathematical Physics 1 Indian Journal of Pure & Applied Mathematics 1 Journal of Statistical Physics 1 Linear and Multilinear Algebra 1 Mathematical Proceedings of the Cambridge Philosophical Society 1 Rocky Mountain Journal of Mathematics 1 Ukrainian Mathematical Journal 1 Advances in Mathematics 1 Annales de l’Institut Fourier 1 Annales de l’Institut Henri Poincaré. Nouvelle Série. Section A. Physique Théorique 1 Cahiers de Topologie et Géométrie Différentielle Catégoriques 1 Glasgow Mathematical Journal 1 Journal of Pure and Applied Algebra 1 Mathematische Nachrichten 1 Memoirs of the American Mathematical Society 1 Monatshefte für Mathematik 1 Pacific Journal of Mathematics 1 Proceedings of the Edinburgh Mathematical Society. Series II 1 Results in Mathematics 1 Siberian Mathematical Journal 1 Expositiones Mathematicae 1 Indagationes Mathematicae. New Series 1 Russian Journal of Mathematical Physics 1 Sbornik: Mathematics 1 Doklady Mathematics 1 Acta Mathematica Sinica. English Series 1 Comptes Rendus. Mathématique. Académie des Sciences, Paris 1 Eurasian Mathematical Journal 1 ISRN Geometry 1 SIAM Journal on Applied Algebra and Geometry all top 5 Cited in 21 Fields 112 Functional analysis (46-XX) 47 Operator theory (47-XX) 11 Abstract harmonic analysis (43-XX) 10 Topological groups, Lie groups (22-XX) 8 Quantum theory (81-XX) 7 Linear and multilinear algebra; matrix theory (15-XX) 4 Convex and discrete geometry (52-XX) 3 Mathematical logic and foundations (03-XX) 3 Associative rings and algebras (16-XX) 3 Category theory; homological algebra (18-XX) 2 Order, lattices, ordered algebraic structures (06-XX) 2 Measure and integration (28-XX) 2 General topology (54-XX) 2 Statistical mechanics, structure of matter (82-XX) 1 Number theory (11-XX) 1 Commutative algebra (13-XX) 1 Algebraic geometry (14-XX) 1 Nonassociative rings and algebras (17-XX) 1 Group theory and generalizations (20-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Probability theory and stochastic processes (60-XX) Citations by Year