UNCONSTRAINED MINIMIZATION ALGORITHMS WITHOUT COMPUTATION OF DERIVATIVES.POWELL MJD.1974; BOLL. UN. MAT. ITAL.; ITAL.; DA. 1974; VOL. 9; NO 2 SUPPL.; PP. 60-69; ABS. ITAL.; BIBL. 9 REF.Article

VARIABLE METRIC METHODS FOR CONSTRAINED OPTIMIZATIONPOWELL MJD.1980; NONLINEAR OPTIMIZATION. THEORY AND ALGORITHMS. INTERNATIONAL SUMMER SCHOOL/1979/BERGAMO; USA; BOSTON: BIRKHAEUSER; DA. 1980; PP. 279-294; BIBL. 11 REF.Conference Paper

ALGORITHMS FOR NONLINEAR CONSTRAINTS THAT USE LAGRANGIAN FUNCTIONS.POWELL MJD.1978; MATH. PROGRAMMG; NETHERL.; DA. 1978; VOL. 14; NO 2; PP. 224-248; BIBL. 28 REF.Article

QUADRATIC TERMINATION PROPERTIES OF MINIMIZATION ALGORITHMS. I. STATEMENT AND DISCUSSION OF RESULTSPOWELL MJD.1972; J. INST. MATH. APPL., LONDON; G.B.; DA. 1972; VOL. 10; NO 3; PP. 333-342; BIBL. 8 REF.Serial Issue

AN EXAMPLE OF CYCLING IN A FEASIBLE POINT ALGORITHMPOWELL MJD.1981; MATH. PROGRAM.; ISSN 0025-5610; NLD; DA. 1981; VOL. 20; NO 3; PP. 353-357; BIBL. 5 REF.Article

AN UPPER TRIANGULAR MATRIX METHOD FOR QUADRATIC PROGRAMMINGPOWELL MJD.1981; NONLINEAR PROGRAMMING 4. NONLINEAR PROGRAMMING SYMPOSIUM. 4/1980/MADISON WI; USA/GBR/AUS; NEW YORK; LONDON; TORONTO: ACADEMIC PRESS; DA. 1981; PP. 1-24; BIBL. 8 REF.Conference Paper

OPTIMIZATION ALGORITHMS IN 1979POWELL MJD.1980; LECTURE NOTES CONTROL INFORM. SCI.; DEU; DA. 1980; NO 22; PP. 83-98; BIBL. 22 REF.Conference Paper

VARIABLE METRIC METHODS FOR CONSTRAINED OPTIMIZATIONPOWELL MJD.1979; LECTURE NOTES MATH.; DEU; DA. 1979; NO 704; PP. 62-72; BIBL. 13 REF.Conference Paper

A FAST ALGORITHM FOR NONLINEARLY CONSTRAINED OPTIMIZATION CALCULATIONS.POWELL MJD.1978; LECTURE NOTES MATH.; GERM.; DA. 1978; NO 630; PP. 144-157; BIBL. 13 REF.; (NUMER. ANAL. BIENN. CONF. 7. PROC.; DUNDEE; 1977)Conference Paper

RESTART PROCEDURES FOR THE CONJUGATE GRADIENT METHOD.POWELL MJD.1977; MATH. PROGRAMMG; NETHERL.; DA. 1977; VOL. 12; NO 2; PP. 241-254; BIBL. 10 REF.Article

PROBLEMS RELATED TO UNCONSTRAINED OPTIMIZATIONPOWELL MJD.1972; IN: NUMER. METHODS UNCONSTRAINED OPTIMIZATION. IMA-NPL CONF. TEDDINGTON, MIDDX, 1971; LONDON; ACAD. PRESS; DA. 1972; PP. 29-55Conference Proceedings

A NOTE ON QUASI-NEWTON FORMULAE FOR SPARSE SECOND DERIVATIVE MATRICESPOWELL MJD.1981; MATH. PROGRAM.; ISSN 0025-5610; NLD; DA. 1981; VOL. 20; NO 2; PP. 144-151; BIBL. 3 REF.Article

GRADIENT CONDITIONS AND LAGRANGE MULTIPLIERS IN NONLINEAR PROGRAMMINGPOWELL MJD.1980; NONLINEAR OPTIMIZATION. THEORY AND ALGORITHMS. INTERNATIONAL SUMMER SCHOOL/1979/BERGAMO; USA; BOSTON: BIRKHAEUSER; DA. 1980; PP. 201-220; BIBL. 2 REF.Conference Paper

SOME CONVERGENCE PROPERTIES OF THE CONJUGATE GRADIENT METHOD.POWELL MJD.1976; MATH. PROGRAMMG; NETHERL.; DA. 1976; VOL. 11; NO 1; PP. 42-49; BIBL. 5 REF.Article

QUADRATIC TERMINATION PROPERTIES OF MINIMIZATION ALGORITHMS. II. PROOFS OF THEOREMSPOWELL MJD.1972; J. INST. MATH. APPL., LONDON; G.B.; DA. 1972; VOL. 10; NO 3; PP. 343-357; BIBL. 2 REF.Serial Issue

DATA SMOOTHING BY DIVIDED DIFFERENCESCULLINAN MP; POWELL MJD.1982; LECT. NOTES MATH.; ISSN 0075-8434; DEU; DA. 1982; VOL. 912; PP. 26-37; BIBL. 4 REF.Conference Paper

ON THE ESTIMATION OF SPARSE HESSIAN MATRICESPOWELL MJD; TOINT PL.1979; S.I.A.M. J. NUMER. ANAL.; USA; DA. 1979; VOL. 16; NO 6; PP. 1060-1074; BIBL. 4 REF.Article

A DISCRETE CHARACTERIZATION THEOREM FOR THE DISCRETE L₁ LINEAR APPROXIMATION PROBLEMPOWELL MJD; ROBERTS FDK.1980; J. APPROX. THEORY; ISSN 0021-9045; USA; DA. 1980; VOL. 30; NO 3; PP. 173-179; BIBL. 3 REF.Article

OPTIMAL INTERPOLATION.GAFFNEY PW; POWELL MJD.1976; LECTURE NOTES MATH.; GERM.; DA. 1976; NO 506; PP. 90-99; BIBL. 6 REF.; (NUMER. ANAL. CONF. 6. PROC.; DUNDEE; 1975)Conference Paper

ON THE CONVERGENCE OF CYCLIC JACOBI METHODS. = SUR LA CONVERGENCE DES METHODES DE JACOBI CYCLIQUESBRODLIE KW; POWELL MJD.1975; J. INST. MATH. APPL., LONDON; G.B.; DA. 1975; VOL. 15; NO 3; PP. 279-287; BIBL. 5 REF.Article

ON THE MODIFICATION OF LDLT FACTORIZATIONS.FLETCHER R; POWELL MJD.1974; MATH. OF COMPUT.; U.S.A.; DA. 1974; VOL. 28; NO 128; PP. 1067-1087; BIBL. 8 REF.Article

THE DIFFERENTIAL CORRECTION ALGORITHM FOR RATIONAL L_INFINI-APPROXIMATIONBARRODALE I; POWELL MJD; ROBERTS FDK et al.1972; S.I.A.M.J. NUMER. ANAL.; U.S.A.; DA. 1972; VOL. 9; NO 3; PP. 493-504; BIBL. 6 REF.Serial Issue

ON A DECOMPOSITION OF CONDITIONALLY POSITIVE-SEMIDE-FINITE MATRICESMARTIN DH; POWELL MJD; JACOBSON DH et al.1980; N.R.I.M.S TECH. REP., TWISK; ZAF; DA. 1980; NO 156; 11 P.; BIBL. 11 REF.Serial Issue

ON A DECOMPOSITION OF CONDITIONALLY POSITIVE-SEMIDEFINITE MATRICESMARTIN DH; POWELL MJD; JACOBSON DH et al.1981; LINEAR ALGEBRA & APPL.; ISSN 0024-3795; USA; DA. 1981; VOL. 39; PP. 51-59; BIBL. 11 REF.Article

THE WATCHDOG TECHNIQUE FOR FORCING CONVERGENCE IN ALGORITHMS FOR CONSTRAINED OPTIMIZATIONCHAMBERLAIN RM; POWELL MJD; LEMARECHAL C et al.1982; MATH. PROGRAM. STUDY; ISSN 0303-3929; NLD; DA. 1982; VOL. 16; PP. 1-17; BIBL. 7 REF.Article