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Workgroup Functional Analysis

Kollegiengebäude Mathematik (20.30)
Room 2.029 und 3.029

Karlsruher Institut für Technologie
Institut für Analysis
Englerstraße 2
76131 Karlsruhe

Marion Ewald
Dr. Kaori Nagato-Plum

Office hours:
Get in contact by email.

Tel.: +49 721 608 42056 und 42064

Fax.: +49 721 608 46214

Photo of Lutz Weis Prof. Dr. Lutz Weis

Office hour for students: Friday, 11:45 to 13:15 and by appointment.
Room: 2.042 Kollegiengebäude Mathematik (20.30)
Tel.: +49 721 608 43821
Fax.: +49 721 608 46177
Email: lutz.weis@kit.edu

Karlsruher Institut für Technologie
Fakultät für Mathematik
Institut für Analysis
Englerstrasse 2
76131 Karlsruhe

Welcome on the homepage of Lutz Weis

Current List of Courses
Semester Titel Typ
Summer Semester 2019 Seminar
Winter Semester 2018/19 Lecture
Summer Semester 2018 Lecture
Winter Semester 2017/18 Lecture
Summer Semester 2017 Lecture
Winter Semester 2016/17 Lecture
Summer Semester 2016 Lecture
Winter Semester 2015/16 Lecture
Summer Semester 2015 Lecture
Winter Semester 2014/15 Lecture
Summer Semester 2014 Lecture
Winter Semester 2013/14 Lecture
Summer Semester 2013 Lecture
Summer Semester 2012 Lecture
Winter Semester 2011/12 Lecture
Summer Semester 2011 Lecture
Winter Semester 2010/11 Lecture
Summer Semester 2010 Lecture
Winter Semester 2009/10 Lecture
Summer Semester 2009 Lecture


Areas of research

  • Functional analysis and its applications to partial differential equations.
  • Operator semigroups and its applications to Stability and Regularity of the Cauchy problem.
  • Spectral theory, in particular H^\infty-calculus for sectorial operators.
  • Vectorvalued harmonic analysis and its connection with Geometry of Banach spaces.
  • Stochastic Evolution Equations with infinite-dimensional state space.

Selected publications

Books and Book chapters

  • Tuomas Hytönen, Jan van Neerven, Mark Veraar, and Lutz Weis, Analysis in Banach Spaces (in preparation)
  • Peer C. Kunstmann and Lutz Weis, Maximal L_p-regularity for parabolic equations, Fourier multiplier theorems and H^\infty-functional calculus, Functional analytic methods for evolution equations, Lecture Notes in Math., vol. 1855, Springer, Berlin, 2004, pp.~65--311.
  • Günter Lumer and Lutz Weis (eds.), Evolution equations and their applications in physical and life sciences, Lecture Notes in Pure and Applied Mathematics, vol. 215, New York, Marcel Dekker Inc., 2001.

Recent Articles

  • Jan van Neerven, Mark Veraar, and Lutz Weis, Stochastic maximal L_p-regularity, Annals of Probability,(to appear).
  • Jan van Neerven, Mark Veraar, and Lutz Weis, Maximal L^p-regularity for stochastic evolution equations, SIAM Journal on Mathematical Analysis, (to appear).
  • Mark Veraar and Lutz Weis, A note on maximal estimates for stochastic convolutions, Czechoslovak Math. J. 61 (2011), no. 3, 743-758.
  • Jan van Neerven and Lutz Weis, Vector measures of bounded \gamma-variation and stochastic integrals, Vector measures, integration and related topics, Oper. Theory Adv. Appl., vol. 201, Birkhäuser Verlag, Basel, 2010, pp. 303-311.
  • Christoph Kriegler and Lutz Weis, Contractivity of the H^\infty-calculus and Blaschke products, Operator algebras, operator theory and applications, Oper. Theory Adv. Appl., vol. 195, Birkhäuser Verlag, Basel, 2010, pp. 231-244.
  • Tuomas P. Hytönen and Lutz Weis, The Banach space-valued BMO, Carleson's condition, and paraproducts, J. Fourier Anal. Appl. 16 (2010), no. 4, 495-513.
  • Mark Veraar and Lutz Weis, On semi-\mathcal{R}-boundedness and its applications, J. Math. Anal. Appl. 363 (2010), no. 2, 431-443.
  • Jesus Suarez and Lutz Weis, Addendum to ´Interpolation of Banach spaces by the \gamma-method´, Extracta Math. 24(2009), no. 3, 265-269.
  • J. M. A. M. van Neerven, M. C. Veraar, and L. Weis, Stochastic evolution equations in UMD Banach spaces, J. Funct. Anal. 255(2008), no. 4, 940-993.
  • J. M. A. M. van Neerven and L. Weis, Stochastic integration of operator-valued functions with respect to Banach space-valued Brownian motion, Potential Anal. 29 (2008), no. 1, 65-88.
  • Z. Brzezniak, J. M. A. M. van Neerven, M. C. Veraar, and L. Weis, Ito's formula in UMD Banach spaces and regularity of solutions of the Zakai equation, J. Differential Equations 245 (2008), no. 1, 30-58.
  • Cornelia Kaiser and Lutz Weis, Wavelet transform for functions with values in UMD spaces, Studia Math. 186 (2008), no. 2, 101-126.
  • Nigel Kalton, Jan van Neerven, Mark Veraar, and Lutz Weis, Embedding vector-valued Besov spaces into spaces of \gamma-radonifying operators, Math. Nachr. 281 (2008), no. 2, 238-252.
  • J. van Neerven, M. Veraar and L. Weis, Stochastic integration in UMD Banach spaces, Ann. Prob. 35 (2007), No. 4, 1438-1478.
  • A. Fröhlich and L. Weis, H^\infty-calculus and dilations, Bull. Soc. Math. France 134 (2006), No. 4, 485-506.
  • T. Hytoenen and L. Weis, Singular convolution integrals with operator-valued kernels, Math. Zeit. 255 (2007), No. 2, 393-425.
  • Z. Strkalj and L. Weis, On operator-valued Fourier multiplier theorems, Trans. Am. Math. Soc. 359 (2007), No. 8, 3529-3547.
  • T. Hytoenen and L. Weis, A T1 theorem for integral transformations with operator-valued kernel, J. Reine Angew. Math. 599 (2006), 155-200.
  • N. J. Kalton, P. C. Kunstmann and L. Weis, Perturbation and interpolation results for the H^\infty-calculus with applications to partial differential equations, Math. Ann. 336 (2006), No. 4, 747-801.
  • T. Hytoenen and L. Weis, Singular integrals on Besov space, Math. Nachr. 279 (2006), No. 5-6, 581-598.
  • J. Dettweiler, L. Weis and J. van Neerven, Space-time regularity of solutions of the parabolic stochastic Cauchy problem, Stoch. Anal. Appl. 24 (2006), No. 4, 843-869.
  • J.M.A.M. van Neerven and L. Weis, Invariant measures for the linear stochastic Cauchy problem and R-boundedness of the resolvent, J. Evol. Equ. 6 (2006), No. 2, 205-228.
  • J.M.A.M. van Neerven and L. Weis, Stochastic integration of functions with values in a Banach space, Studia Math. 166 (2005), No. 2, 131-170.
  • J.M.A.M. van Neerven and L. Weis, Weak limits and integrals of Gaussian covariances in Banach spaces, Probab. Math. Statist. 25 (2005), No. 1, 55-74.
  • T. Kucherenko and L. Weis, Real interpolation of domains of sectorial operators on L_p-spaces, J. Math. Anal. Appl. 310 (2005), No. 1, 278-285.
  • M. Girardi and L. Weis, Operator-valued martingale transforms and R-boundedness, Illinois J. of Math. 49 (2005), No. 2, 487-516 (electronic).