# Search results for: Gerald Teschl

Mathematische Nachrichten > 295 > 4 > 762 - 784

Journal of Mathematical Analysis and Applications > 2017 > 449 > 1 > 580-588

Journal of Differential Equations > 2016 > 261 > 10 > 5371-5410

Advances in Mathematics > 2016 > 301 > C > 1022-1061

Operator Theory: Advances and Applications > Spectral Methods for Operators of Mathematical Physics > 151-154

*n*-th column and

*n*-th row. We give necessary and sufficient conditions for the spectra of the original matrix plus the spectra of the two submatrices to uniquely determine the original matrix. Our result contains Hochstadt’s theorem as a Special case.

Annales Henri Poincaré > 2016 > 17 > 11 > 3147-3176

Operator Theory: Advances and Applications > Methods of Spectral Analysis in Mathematical Physics > 139-190

Operator Theory: Advances and Applications > Modern Analysis and Applications > Research Papers > 445-454

Journal of Mathematical Analysis and Applications > 2016 > 434 > 1 > 956-966

Journal of Mathematical Analysis and Applications > 2016 > 434 > 1 > 191-208

Monatshefte für Mathematik > 2016 > 179 > 4 > 603-613

Letters in Mathematical Physics > 2016 > 106 > 4 > 545-555

*H*

_{0}(i.e., the Jacobi operator associated with the Laguerre polynomials) in terms of Jacobi polynomials. Based on this expression, we show that the norm of the evolution group acting from $${\ell^1}$$ ℓ 1 to $${\ell^\infty}$$...

Trends in Analytical Chemistry > 2015 > 68 > Complete > 88-106

Journal of Differential Equations > 2014 > 257 > 2 > 415-449

Monatshefte für Mathematik > 2014 > 174 > 4 > 515-547

Advances in Mathematics > 2013 > 235 > Complete > 469-495

Journal d'Analyse Mathématique > 2013 > 120 > 1 > 151-224

Journal of Fourier Analysis and Applications > 2013 > 19 > 1 > 167-179

**R**

^{ n }with the Fourier transform of the same function defined on

**R**

^{ n+2}. This formula enables one to explicitly calculate the Fourier transform of any radial function

*f*(

*r*) in any dimension, provided one knows the Fourier transform of the one-dimensional function

*t*↦

*f*(|

*t*|) and the two-dimensional function (

*x*

_{1},

*x*

_{2})↦

*f*(|(

*x*

_{1},...

Mathematical Physics, Analysis and Geometry > 2013 > 16 > 2 > 111-136