
Ludwig Paul Ary Everest Streit
Departamento de Matemática e Engenharias
Universidade da Madeira
Campus Universitário da Penteada
9000390 Funchal
Portugal
Telefone: +351 291705153
Fax: +351 291705199
Email: streit(at)uma.pt
www:
Office: Room 2.108

Actividade Profissional
 Professor Catedrático, Universidade da Madeira, desde 1991
 Professor Catedrático, Universidade do Minho, 19881991
Habilitações Académicas
 Agregação em Matemática
 Doutoramento em Física Teorica

Áreas de Investigação
 Infinite Dimensional Analysis, Mathematical Physics

Publicações

"Die Gewichtsfunktion der Mandelstamdarstellung am Rande ihres Trägers"  Il Nuovo Cimento 23, 934 (1962).

"Eine Landausingularität der exakten Streuamplitude"  Acta Physica Austriaca 16, 12 (1963).

"SMatrix Theory and Current Operator in Quantum Field Theory"  Il Nuovo Cimento 34, 198 (1964).

Eine UnitaritätsBedingung für den Stromoperator in der KleinGordonGleichung Acta Phys. Austriaca 20 (14): 38 1965

"An Introduction to Theories of Integration over Function Spaces "  Acta Physica Austriaca, Suppl. II, 2 (1966).

"Generalized and Reducible Fields in Fock Space"  Helvetica Physica Acta 39, 65 (1966).

"Test Function Spaces for Direct Product Representations of the Canonical Commutation Relations"  Comm. math. Phys. 4, 22 (1967).

"Unitarity of Pauli Transformations"  Il Nuovo Cimento 57, 140 (1968).

"A Generalization of Haag's Theorem"  Il Nuovo Cimento 62, 673 (1969).

"Properties of Quadratic Representations of the Canonical Commutation Relations" (with J. R. Klauder)  J. Math. Phys. 10, 1661 (1969).

"Quantum Field Theory on Lightlike Slabs" (with J. R. Klauder and H. Leutwyler)  Il Nuovo Cimento 66, 536 (1970).

"The Construction of Physical States in Quantum Field Theory"  Acta Physica Austriaca Suppl. VII, 335 (1970).

"Generalized Free Fields as Cyclic Representations of the Canonical Commutation Relations"  Acta Physica Austriaca 32, 107 (1970)

"Tachyon Quantization" (with J. R. Klauder )  Boulder Lectures in Theoretical Physics, vol. XIV B (1973), p.539.

"Dilation and Conformal Invariance on Null Planes (with F. Rohrlich)  Il Nuovo Cimento 7 B, 166 (1973).

"Exact Solution of the Quadratic Interaction Hamiltonian" (with W. J. Eachus)  Rep. Math. Phys. 4, 161 (1973).

"Model Calculation of the Vacuum Energy Density for a SelfCoupled Bose Field" (with L. Pittner)  Acta Physica Austriaca 38, 361 (1973).

"Optical Equivalence Theorem for Unbounded Observables" (with J. R. Klauder)  J. Math.Phys. 15, 760 (1974).

"On the Interference between Coulomb and Short Range Interactions" (with W. Plessas, H. Zingl)  Acta Physica Austriaca 40, 274 (1974).

"On Interactions which cannot be Turned Off"  Acta Physica Austriaca 42, 9 (1975).

"Stability of Scattering Phase Shifts" (with J. Froehlich)  Acta Physica Austriaca 47, 125 (1977).

"On Quantum Theory in Terms of White Noise" (with T. Hida)  Nagoya Math. J. 68, 21 (1977).

"Energy Forms, Hamiltonians, and Distorted Brownian Paths" (with S. Albeverio, R. HoeghKrohn)  J. Math. Phys. 18, 907 (1977)..

"A Renormalization Group model with NonGaussian Fixed Point" (with W. Karwowski)  Rep. Math. Phys. 13, 1 (1978).

"Regularization of Hamiltonians and Processes" (with S. Albeverio, R. HoeghKrohn)  J. Math. Phys. 21, 1636 (1980).

"Coulomb Corrections in NN Coupled States" (with J. Froehlich, H. Zankel)  Phys. Lett. 92B, 8 (1980).

"Simple Coulomb Correction for Phase Shifts and Application to the pp System" (with J. Froehlich, H. Zankel, H. Zingl)  Journ. Phys. G 6, 841 (1980).

"Capacity and Quantum Mechanical Tunneling" (with S. Albeverio, M. Fukushima, W. Karwowski)  Comm. math. Phys. 81, 501 (1981).

"Energy Forms, Schroedinger Theory, Processes"  Phys. Reports 77, 363 (1981).

"Generalized Brownian Functionals and the Feynman Integral" (with T. Hida)  Stoch. Proc. Appl. 16, 55 (1983).

"An Improvement of Coulomb Corrections in the Phase Shift Analysis of Elastic pO¹6 Scattering and Predictions of the Cross Sections for p?O¹6 Scattering at Low Energies (with J. Froehlich, H. G. Schlaile, H. Zingl)  Z. Phys. A 302, 89 (1981).

"Prediction of nalpha Phase Shifts from palpha Data between 20 and 35 MeV" (with J. Fröhlich, H. Zankel)  Nucl. Phys. A 384, 97 (1982).

"A Separable Approach to the BS Equation and its Application to NucleonNucleon Scattering" (with K. Schwarz, J. Froehlich, H. Zingl)  Acta Physica Austriaca 53, 191 (1981).

"Charged Particles with Short Range Interactions" (with S. Albeverio, F. Gesztesy, R. HoeghKrohn)  Ann. Inst. H. Poincaré 37, 263 (1983).

"Exact Solution of a Quasipotential Equation for Charged Spinless Particles" (with I. Todorov)  Rep. Math.Phys. 24, 95 (1986).

"Separable BetheSalpeter Equation Kernels for PionNucleon Scattering (with J. Froehlich, K. Schwarz, H. Zingl)  Phys. Rev. C 25, 2591 (1982)

"Model Dependence of CoulombCorrected Scattering Lengths" (with S. Albeverio, L. S. Ferreira, F. Gesztesy, R. HoeghKrohn)  Phys. Rev. C 29, 680 (1984).

"Low Energy Parameters in Nonrelativistic Scattering Theory" (with S. Albeverio, D. Bollé, F. Gesztesy, R. HoeghKrohn)  Ann. Phys. 148, 308 (1983).

"Stochastic Processes  Quantum Physics"  Acta Physica Austriaca Suppl. XXVI, 3 (1984).

"Separable Potentials from Gamow States" (with M. Baldo. L. S. Ferreira)  Phys. Rev. C 32, 685 (1985).

"On the Connection between Schrödinger and Dirichlet Forms" (with S. Albeverio, F. Gesztesy, W. Karwowski)  J. Math. Phys. 26, 2546 (1985)

"Charged Particles with a Short Range Force: Perturbation Theory with Respect to the Range and other Small Effects" (with F. Gesztesy, G. Karner)  J. Math. Phys. 27, 249 (1986).

"Convergence of Dirichlet Forms and Associated Schrödinger Operators" (with S. Albeverio, S. Kusuoka)  J. Funct. Anal. 68, 130 (1986).

"An Exactly Solvable Periodic Schrödinger Operator" (with F. Gesztesy, C, Macedo)  J. Phys. A: Math. Gen. L503 (1985).

"Three Nucleon Bound State Collapse with Tabakin Potentials" (with G. Rupp, J. A. Tjon)  Phys. Rev. C 31, 2285 (1985).

"Gamow Separable approximations for Realistic NN Interactions: Single Channel Case" (with M. Baldo, L. S. Ferreira, T. Vertse)  Phys. Rev. C 33, 1587 (1986).

"Scattering Theory for General, nonLocal Interactions: Threshold Behaviour and Sum Rules" (with D. Bollé, F. Gesztesy, C. Nessmann)  Rep. Math. Phys.

"Gamow Vectors as Solutions of a NonHermitian eigenvalue Problem" (with M. Baldo, L. S. Ferreira)  Nucl. Phys. A 467, 44 (1987).

"Eigenvalue Problem for Gamow Vectors and a Separable Approximation for the NN Interaction (with M. Baldo, L. S. Ferreira)  Phys. Rev. C 36, 1743 (1987).

"On the Origin of Chaos in Gearbox Models" (with M.O. Hongler)  Physica 29D, 402 (1988).

"Dirichlet Forms and White Noise Analysis" (with T. Hida, J. Potthoff)  Comm. math. Phys. 116, 235 (1988).

"An Inverse Problem for Stochastic Differential Equations" (with S. Albeverio, Ph. Blanchard, S. Kusuoka)  J. Stat. Phys. 57, 347 (1989).

"A Remark on the Second Virial Coefficient in the Quantum Lorentz Model (with C. Carvalho)  J. Phys. A: Math. Gen. 21, 3739 (1988).

"QuasiEnergies, LossEnergies and Stochasticity" (with G. Karner, V. I. M'anko)  Rep. Math. Phys. 29, 177 (1990).

"The Vacuum of the HoeghKrohn model as a generalized White Noise Functional" (with S. Albeverio, T. Hida, J. Potthoff)  Phys. Lett. B 217, 511 (1989).

"Dirichlet Forms in Terms of White Noise Analysis I  Construction and QFT Examples" (with S. Albeverio, T. Hida, J. Potthoff, M. Roeckner)  Rev. Math. Phys. 1, 291 (1990)

"Dirichlet Forms in Terms of White Noise Analysis II  Construction of Infinite Dimensional Diffusions and QFT Examples" (with S. Albeverio, T. Hida, J. Potthoff, M. Roeckner)  Rev. Math. Phys. 1, 313 (1990).

"Generalized Master Equations and the Telegrapher's Equation" (with M.O. Hongler)  Physica A165, 196 (1990).

"A Characterization of Hida Distributions" (with J. Potthoff)  J. Funct. Analysis 10, 212 (1991) .

"A Characterization of White Noise Test Functionals" (with J. Potthoff, H. H. Kuo)  Nagoya Math. J. 121, 185 (1991).

"A Probabilistic Connection between the Burger and a Discrete Boltzmann Equation" (with M.O. Hongler)  Europhys. Lett. 12, 193 (1990).

"The Feynman Integrand as a Hida Distribution" (with M. de Faria, J. Potthoff)  J. Math. Phys. 32, 2123 (1991).

"Spaces of White Noise Distributions: Constructions, Descriptions, Applications" (with Yu. G. Kondratiev) . Rep. Math. Phys. 33, 341366 (1993)

"A Remark about a Norm Estimate for White Noise Distributions" (with Yu. Kondratiev)  Ukrainean Math. J. (1992) no.7.

"Constructing the Feynman Integrand" (with D. C. Khandekar)  Annalen d. Physik 1, 49 (1992).

"Quantum Mechanical Propagators in Terms of Hida Distributions", (A. Lascheck, P. Leukert, L. Streit, W. Westerkamp), Rep. Math. Phys. 33, 221232 (1993).

"Invariant states on random and quantum fields: f bounds and white noise analysis." (with J. Potthoff) J. Funct. Anal. 111, 295311 (1993)

"More about Donsker's delta function" (with A. Lascheck, P. Leukert, W. Westerkamp), Soochow Math. J. 20, 401418 (1994).

"Generalized Functionals in Gaussian Spaces  the Characterization Theorem Revisited" (with Y. G. Kondratiev, P. Leukert, J. Potthoff, W. Westerkamp), J. Funct. Analysis 141, 301318 (1996).

"Wick Calculus in Gaussian Analysis" (with Y. G. Kondratiev, P. Leukert) Acta Appl. Math. 44, 269294 (1996)

"NonGaussian infinite dimensional analysis" (with S. Albeverio, Y. Daletzky, Yu. Kondratiev) J. Funct. Analysis 138, 311350 (1996).

"Intersection Local Times as Generalized White Noise Functionals" (with M. de Faria, T. Hida, H. Watanabe) Acta Appl. Math. 46, 351362 (1997)

"A note on positive distributions in Gaussian analysis" (with Yu. Kondratiev, W. Westerkamp) Ukrainian Math. J. 47, no. 5 (1995)

"Generalized Functions in Infinite Dimensional Analysis" (with Yu. Kondratiev, W. Westerkamp, Y.A. Yan) Hiroshima Math. Journal 28, 213260 (1998).

"The Feynman Integral  Answers and Questions", in Proc. 1st Jagna Intl. Workshop on Adv. in Theor. Physics, p. 188 199, Central Visayan Inst., Bohol, 1996.

"Generalized Appell Systems" (with Yu. Kondratiev, J. L. Silva) Meth. Funct. Anal. Top. 3, 2861 (1997).

"The Feynman Integral for timedependent anharmonic oscillators"(with M. Grothaus, D. C. Khandekar, J. L. Silva) J. Math. Phys. 38(6), 32783299 (1997).

"Feynman Integrals for a Class of Exponentially Growing Potentials" (with T. Kuna, W. Westerkamp) Journ. Math. Phys. 39, 44764491 (1998).

"Differential Geometry on Compound Poisson Space" (with Yu. Kondratiev, J. L. Silva) Meth. Funct. Anal. Topology 4, 3258 (1998).

"Complex Gaussian Analysis and the BargmannSegal Space". (with M. Grothaus, Yu. Kondratiev) UMaCCM 20/97, to appear in Meth. Funct. Anal. Topology.

"Nonlinear Evolution Equations with Gradient Coupled Noise" (with F. Benth, Th. Deck, J. Potthoff) Lett. Math. Phys. 43, 267278 (1998).

"Analysis on Poisson and Gamma spaces" (with Yu. Kondratiev, J. L. Silva, G. Us) Inf. Dim. Anal. Qu. Prob.1, 91117 (1998)

"Regular generalized functions in Gaussian analysis" (with M. Grothaus, Yu. Kondratiev) Inf. Dim. Anal. Qu. Prob 2, 125 (1999)

"Scaling limits for the solution of Wick type Burgers equation. (with Grothaus, M. and Kondratiev, Yu.G), Random Oper. Stochastic Equations, 8(1):126, 2000.

"The Renormalization of Self Intersection Local Times I: The Chaos Expansion." (with M. de Faria, C. Drumond). Inf. Dim. Anal. Qu. Prob. 3, 223236 (2000).

"A Generalized ClarkOcone Formula" (with M. de Faria, M. J. Oliveira). Random Oper. Stochastic Equations, 8, 163174 (2000).

"Construction of Relativistic Quantum Fields in the Framework of White Noise analysis" (with M. Grothaus) J. Math. Phys. 40, 53875405 (1999).

"Knots, Feynman Diagrams and Matrix Models" (with M. Grothaus, I. V. Volovich) IDAQP 2, 359380 (1999)

"Multiple Intersection Local Times in Terms of White Noise" (with S. Mendonca) IDAQP 4, 533543 (2001).

"Quadratic Actions, SemiClassical Approximation, and Delta Sequences in Gaussian analysis" (with M. Grothaus) Rep. Math. Phys. 44, 381405 (1999).

"On regular Generalized Functions in White Noise Analysis and their Applications" (with M. Grothaus) Methods of Functional Analysis and Topology, 6 , no. 1, pp. 1427 (2000)

"Intersection Local Times of Independent Brownian Motions as Generalized White Noise Functionals" (with S. Albeverio, M. J. Oliveira), Acta Appl. Math. 69, 221241 (2001)

"Stochastic Control for a Class of Random Evolution Models," (with MaxOlivier Hongler, H. Mete Soner) Applied Mathematics and Optimization 49, 113121 (2004)

"Feynman Integrals and White Noise Analysis," (with J. L. Silva) Madeira preprint Nr.67/02

"A note on the representation of conditional expectations for nonGaussian noise," (with Tobias Kuna) Madeira preprint Nr.75 /03, accepted for publication in COSA.

M. Faria, M. J. Oliveira and L. Streit. Feynman Integrals for NonSmooth and Rapidly Growing Potentials. J. Math. Phys. 2005.

L. Streit. "Higher Education ToDay  A One Billion Euro Misunderstanding", 2004. Gazeta de Física, Portugal.

R. JenaneGannoun, R. Hachaichi and L. Streit: "Renormalisation du temps local des points triples du mouvement brownien," Madeira preprint 94/04, to appear in IDAQP, 2006.

M.J. Barber, Ph. Blanchard, E. Buchinger, B. Cessac, L. Streit. Learning as a social process: a model based on Luhmann's systems theory. JASSS . 112/05

Book: "White Noise. An infinite dimensional calculus." T. Hida, H. H. Kuo, J. Potthoff, L. Streit, Kluwer Academic, 1993.




