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Found 218 Documents (Results 1–100)

Block ciphers and systems of quadratic equations. (English) Zbl 1254.94027

Johansson, Thomas (ed.), Fast software encryption. 10th international workshop, FSE 2003, Lund, Sweden, February 24–26, 2003. Revised papers. Berlin: Springer (ISBN 3-540-20449-0/pbk). Lect. Notes Comput. Sci. 2887, 274-289 (2003).
MSC:  94A60
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On the asymptotic behavior of solutions to nonlinear dissipative systems of equations. (English. Russian original) Zbl 1129.35313

Dokl. Math. 68, No. 1, 49-53 (2003); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 391, No. 3, 298-302 (2003).
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Unstability of trivial solutions of difference systems with quadratic right-hand side. (Russian. English summary) Zbl 1099.39005

Lukovs’kij, I. O. (ed.), Problems of dynamics and stability of multidimensional systems. Kyïv: Instytut Matematyky NAN Ukraïny (ISBN 966-02-3122-9). Pratsi Instytutu Matematyky Natsional’noïAkademiïNauk Ukraïny. Matematyka ta ïïZastosuvannya 47, 48-56 (2003).
MSC:  39A11 39A10
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Optimization of estimates of characteristics of dynamical systems. (Russian) Zbl 1104.34324

Ukrainian mathematical congress – 2001, Kiev, Ukraine, August 21–23, 2001. Proceedings. Section 2. Dynamical analysis. Kyïv: Instytut Matematyky NAN Ukraïny (ISBN 966-02-3009-5). 34-45 (2003).
MSC:  34D20 93D30
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Properties of solution to a parametric linear-quadratic optimal control problem in the vicinity of the irregular point. (Russian, English) Zbl 1105.49040

Zh. Vychisl. Mat. Mat. Fiz. 43, No. 9, 1364-1373 (2003); translation in Comput. Math. Math. Phys. 43, No. 9, 1310-1319 (2003).
MSC:  49N10 49K40 93C73
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Imaginary quadratic solutions of anti-Vandermonde systems in 4 unknowns and the Galois orbits of trees of diameter 4. (Russian, English) Zbl 1068.05016

Fundam. Prikl. Mat. 9, No. 3, 229-236 (2003); translation in J. Math. Sci., New York 135, No. 5, 3420-3424 (2006).
MSC:  05C05 11D25
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The spectral asymptotics of a quadratic pencil of differential operators. (English. Russian original) Zbl 1079.47047

Differ. Equ. 39, No. 8, 1117-1123 (2003); translation from Differ. Uravn. 39, No. 8, 1062-1067 (2003).
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On the maximum possible negativity margin for the first derivative (first difference) of a quadratic Lyapunov function. (English. Russian original) Zbl 1065.93030

Differ. Equ. 39, No. 11, 1645-1647 (2003); translation from Differ. Uravn. 39, No. 11, 1562-1563 (2003).
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Stability of quadratic functional equations in Banach modules. (English) Zbl 1068.39040

Cho, Yeol Je (ed.) et al., Inequality theory and applications. Vol. 2. Papers from the 7th international conference on nonlinear functional analysis and applications, Gyeongsang National University, Chinju, Korea and at Kyungnam University, Masan, Korea, August 6–10, 2001. Hauppauge, NY: Nova Science Publishers (ISBN 1-59033-866-9/hbk ). 183-192 (2003).
MSC:  39B82 39B52 46H25
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Generalized quasilinearization method for nonlinear nonhomogeneous Dirichlet boundary value problems. (English) Zbl 1073.34011

Pordavi, Omar (ed.), Recent research on pure and applied algebra. New York, NY: Nova Science Publishers (ISBN 1-59033-578-3/hbk). 77-84 (2003).
MSC:  34A45 34B15
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On the Hyers-Ulam-Rassias stability of a Pexiderized quadratic equation. II. (English) Zbl 1059.39020

Rassias, Themistocles M. (ed.), Functional equations, inequalities and applications. Dordrecht: Kluwer Academic Publishers; (ISBN 1-4020-1578-X/hbk). 39-65 (2003).
MSC:  39B82 39B52
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Hyers-Ulam stability of a quadratic functional equation in Banach modules. (English) Zbl 1059.39016

Rassias, Themistocles M. (ed.), Functional equations, inequalities and applications. Dordrecht: Kluwer Academic Publishers; (ISBN 1-4020-1578-X/hbk). 1-10 (2003).
MSC:  39B82 39B52
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A reduced SQP algorithm for the optimal control of semilinear parabolic equations. (English) Zbl 1050.49024

Sachs, E. W. (ed.) et al., System modeling and optimization XX. IFIP TC7, 20th conference on system modeling and optimization, Trier, Germany, July 23–37, 2001. Dordrecht: Kluwer Academic Publishers (ISBN 1-4020-7565-0/hbk). IFIP, Int. Fed. Inf. Process. 130, 239-253 (2003).
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Changing blow-up time in nonlinear Schrödinger equations. (English) Zbl 1055.35108

Proceedings of the conference on partial differential equations, Forges-les-Eaux, France, June 2–6, 2003. Exp. Nos. I-XV. Nantes: Université de Nantes (ISBN 2-86939-207-9/pbk). Exp. No. III, 12 p. (2003).
MSC:  35Q55 35B33 35B40
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Quadratic equations in free groups and topological applications. (English) Zbl 1052.20019

Cho, Jung Rae (ed.) et al., Recent advances in group theory and low-dimensional topology. Proceedings of the 2nd German-Korean workshop on algebra and topology, Pusan, Korea, August 14–26, 2000. Lemgo: Heldermann Verlag (ISBN 3-88538-227-X/pbk). Res. Expo. Math. 27, 83-122 (2003).
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A software system for PDE-constrained optimization problems. (English) Zbl 1046.65047

Di Pillo, Gianni (ed.) et al., High performance algorithms and software for nonlinear optimization. Selected lectures presented at the workshop, Erice, Italy, June 30–July 8, 2001. Boston, MA: Kluwer Academic Publishers (ISBN 1-4020-7532-4/hbk). Appl. Optim. 82, 129-147 (2003).
MSC:  65K10 49J20 49M37
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Unbounded observers and Riccati operators in nonreflexive spaces. (English) Zbl 1044.93013

Desch, Wolfgang (ed.) et al., Control and estimation of distributed parameter systems. 8th international conference in Maria Trost (Austria), July 15–21, 2001. Selected papers. Basel: Birkhäuser (ISBN 3-7643-7004-1/hbk). ISNM, Int. Ser. Numer. Math. 143, 121-136 (2003).
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A SQP-augmented Lagrangian method for optimal control of semilinear elliptic variational inequalities. (English) Zbl 1066.49019

Desch, Wolfgang (ed.) et al., Control and estimation of distributed parameter systems. 8th international conference in Maria Trost (Austria), July 15–21, 2001. Selected papers. Basel: Birkhäuser (ISBN 3-7643-7004-1/hbk). ISNM, Int. Ser. Numer. Math. 143, 57-72 (2003).
MSC:  49M29 65N99 35J85 49J40 90C55
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