HOFFMANN, DER MORGENLANDFAHRER. ANMERKUNGEN ZU HERMANN HESSE UND E.T.A. HOFFMANN H., VOYAGEUR EN ORIENT. REMARQUES SUR H. H. ET E. T. A. HHELMKE U.MITTEILUNGEN DER E.T.E. HOFFMANN-GESELLSCHAFT. 1973, Num 19, pp 61-66Article

UNTERSUCHUNGEN UEBER DIE WIRKUNG EINER TRYPSINBEHANDLUNG AUF DIE ERYTHROZYTENELIMINATION BEI DER RATTE = ETUDES SUR L'ACTION D'UN TRAITEMENT PAR LA TRYPSINE SUR L'ELIMINATION DES ERYTHROCYTES CHEZ LE RATHELMKE U.1972; FOLIA HAEMATOL.; ALLEM.; DA. 1972; VOL. 98; NO 3; PP. 346-353; ABS. ANGL. FR. RUSSE; BIBL. 6REF.Serial Issue

Global convergence of nonlinear cascade flows with Morse-Bott zero dynamicsHELMKE, U.Systems & control letters. 2009, Vol 58, Num 6, pp 389-394, issn 0167-6911, 6 p.Article

A global parametrization of asymptotically stable linear systemsHELMKE, U.Systems & control letters. 1989, Vol 13, Num 5, pp 383-389, issn 0167-6911Article

Balanced realizations for linear systems: a variational approachHELMKE, U.SIAM journal on control and optimization. 1993, Vol 31, Num 1, pp 1-15, issn 0363-0129Article

MASTOPATHIE UND MAMMAKARZINOM = MASTOPATHIE ET CANCER DU SEINBARTE M; HELMKE U; WAITZ I et al.1976; DTSCHE GESUNDH.-WES.; DTSCH.; DA. 1976; VOL. 31; NO 8; PP. 353-357; ABS. RUSSE ANGL.; BIBL. 16 REF.Article

ZUM VERHALTEN DER GLYKOKALYX BEI DER APOKRINEN SEKRETION IN DER GLANDULA MAMMARIA LACTANS DER RATTE = COMPORTEMENT DU GLYCOCALYX AU COURS DE LA SECRETION APOCRINE DE LA GLANDE MAMMAIRE DE LA RATTE EN LACTATIONHELMKE U; GEYER G; RICHTER H et al.1972; ANAT. ANZ.; DTSCH.; DA. 1972; VOL. 132; NO 3-4; PP. 371-375; ABS. ANGL.; BIBL. 3REF.Article

On the elementary divisors of the Sylvester and Lyapunov mapsFUHRMANN, P. A; HELMKE, U.Linear algebra and its applications. 2010, Vol 432, Num 10, pp 2572-2588, issn 0024-3795, 17 p.Article

Tensored polynomial modelsFUHRMANN, Pa; HELMKE, U.Linear algebra and its applications. 2010, Vol 432, Num 2-3, pp 678-721, issn 0024-3795, 44 p.Article

A Jacobi-type method for computing balanced realizationsHELMKE, U; HÜPER, K.Systems & control letters. 2000, Vol 39, Num 1, pp 19-30, issn 0167-6911Article

Topology of the orbit space of generalized linear systemsHELMKE, U; SHAYMAN, M. A.MCSS. Mathematics of control, signals and systems. 1991, Vol 4, Num 4, pp 411-437, issn 0932-4194Article

A homeomorphism between observable pairs and conditioned invariant subspacesFUHRMANN, P. A; HELMKE, U.Systems & control letters. 1997, Vol 30, Num 5, pp 217-223, issn 0167-6911Article

A new algorithm for the generalized eigenvalue problemHÜPER, K; HELMKE, U.International conference on acoustics, speech, and signal processing. 1997, pp 35-38, isbn 0-8186-7919-0Conference Paper

Continuity properties of balanced realizationsDIRR, G; HELMKE, U.Systems & control letters. 1998, Vol 34, Num 4, pp 217-224, issn 0167-6911Article

Existence and uniqueness results for neural network approximationsWILLIAMSON, R. C; HELMKE, U.IEEE transactions on neural networks. 1995, Vol 6, Num 1, pp 2-13, issn 1045-9227Article

Neural networks, rational functions, and realization theoryHELMKE, U; WILLIAMSON, R. C.MCSS. Mathematics of control, signals and systems. 1995, Vol 8, Num 1, pp 27-49, issn 0932-4194Article

Sigunlar-value decomposition via gradient and self-equivalent flowsHELMKE, U; MOORE, J. B.Linear algebra and its applications. 1992, Vol 169, pp 223-248, issn 0024-3795Article

A partial compactification for linear systemsHELMKE, U; MANTHEY, W.Systems & control letters. 1986, Vol 8, Num 1, pp 39-45, issn 0167-6911Article

Lie theory and its applications in controlHELMKE, U; HüPER, K; LAWSON, J et al.Systems & control letters. 2001, Vol 43, Num 1, issn 0167-6911, 77 p.Serial Issue

Hermitian pencils and output feedback stabilization of scalar systemsHELMKE, U; ANDERSON, B. D. O.International Journal of Control. 1992, Vol 56, Num 4, pp 857-876, issn 0020-7179Article

Towards a compactification of the set of conditioned invariant subspaceTRUMPF, J; HELMKE, U; FUHRMANN, P. A et al.Systems & control letters. 2003, Vol 48, Num 2, pp 101-111, issn 0167-6911, 11 p.Article

A controllability test for general first-order representationsHELMKE, U; ROSENTHAL, J; SCHUMACHER, J. M et al.Automatica (Oxford). 1997, Vol 33, Num 2, pp 193-201, issn 0005-1098Article

Minimal partial realization by descriptor systemsHINRICHSEN, D; MANTHEY, W; HELMKE, U et al.Linear algebra and its applications. 2001, Vol 326, pp 45-84, issn 0024-3795Article

Topological aspects of the partial realization problemMANTHEY, W; HELMKE, U; HINRICHSEN, D et al.MCSS. Mathematics of control, signals and systems. 1992, Vol 5, Num 2, pp 117-149, issn 0932-4194Article

Riccati-like flows and matrix approximationsHELMKE, U; PRECHTEL, M; SHAYMAN, M. A et al.Kybernetika. 1993, Vol 29, Num 6, pp 563-582, issn 0023-5954Conference Paper