Search
Former Research Group

Rigidity and Flexibility in PDEs - Publications

Explore the scholarly works of the "Rigidity and Flexibility in PDEs" group. Browse journal articles, contributions in books and conference proceedings, academic theses, or discover our research through preprints.


inJournal
2026 Journal Open Access
Xiaopeng Cheng and Angkana Rüland

Boundary reconstruction for the anisotropic fractional Calderón problem

In: Journal of differential equations, 459 (2026), p. 114052
inJournal
2022 Journal Open Access
Marcel Hansmann, Christian Rose and Peter Stollmann

Bounds on the first Betti number : an approach via Schatten norm estimates on semigroup differences

In: The journal of geometric analysis, 32 (2022) 4, p. 115
inJournal
2022 Repository Open Access
Angkana Rüland and Eva Sincich

On Runge approximation and Lipschitz stability for a finite-dimensional Schrödinger inverse problem

In: Applicable analysis : an international journal, 101 (2022) 10, pp. 3655-3666
inJournal
2021 Journal Open Access
Aingeru Fernández-Bertolin, Luz Roncal, Angkana Rüland and Diana Stan

Discrete Carleman estimates and three balls inequalities

In: Calculus of variations and partial differential equations, 60 (2021) 6, p. 239
inJournal
2021 Journal Open Access
María Ángeles García-Ferrero, David Gómez-Ullate and Robert Milson

Exceptional Legendre polynomials and confluent Darboux transformations

In: Symmetry, integrability and geometry : methods and applications (SIGMA), 17 (2021), p. 016
inJournal
2021 Journal Open Access
Francesco Della Porta, Angkana Rüland, Jamie M. Taylor and Christian Zillinger

On a probabilistic model for martensitic avalanches incorporating mechanical compatibility

In: Nonlinearity, 34 (2021) 7, pp. 4844-4896
inJournal
2020 Repository Open Access
Francesco Della Porta and Angkana Rüland

Convex integration solutions for the geometrically non-linear two-well problem with higher Sobolev regularity

In: Mathematical models and methods in applied sciences, 30 (2020) 3, pp. 611-651
inJournal
2020 Repository Open Access
Pierluigi Cesana, Francesco Della Porta, Angkana Rüland, Christian Zillinger and Barbara Zwicknagl

Exact constructions in the (non-linear) planar theory of elasticity : from elastic crystals to nematic elastomers

In: Archive for rational mechanics and analysis, 237 (2020) 1, pp. 383-445
inJournal
2020 Journal Open Access
Angkana Rüland, Christian Zillinger and Barbara Zwicknagl

Higher Sobolev regularity of convex integration solutions in elasticity : the planar geometrically linearized hexagonal-to-rhombic phase transformation

In: Journal of elasticity, 138 (2020) 1, pp. 1-76
inBook
2020 Repository Open Access
Christian Rose and Peter Stollmann

Manifolds with Ricci curvature in the Kato class : heat kernel bounds and applications

In: Analysis and geometry on graphs and manifolds / Matthias Keller... (eds.)
Cambridge : Cambridge University Press, 2020. - pp. 76-94
(London Mathematical Society lecture note series ; 461)
inJournal
2020 Repository Open Access
Francesco Della Porta

On non stress-free junctions between martensitic plates

In: Interfaces and free boundaries, 22 (2020) 3, pp. 251-283
inJournal
2020 Journal Open Access
María Ángeles García-Ferrero and Angkana Rüland

On two methods for quantitative unique continuation results for some nonlocal operators

In: Communications in partial differential equations, 45 (2020) 11, pp. 1512-1560
inJournal
2020 Repository Open Access
Angkana Rüland and Mikko Salo

Quantitative approximation properties for the fractional heat equation

In: Mathematical control and related fields, 10 (2020) 1, pp. 1-26
inJournal
2020 Repository Open Access
Ru-Yu Lai, Yi-Hsuan Lin and Angkana Rüland

The Calderón problem for a space-time fractional parabolic equation

In: SIAM journal on mathematical analysis, 52 (2020) 3, pp. 2655-2688
inJournal
2020 Journal Open Access
Mihajilo Cekić, Yi-Hsuan Lin and Angkana Rüland

The Calderón problem for the fractional Schrödinger equation with drift

In: Calculus of variations and partial differential equations, 59 (2020) 3, p. 91
inJournal
2020 Repository Open Access
Angkana Rüland and Mikko Salo

The fractional Calderón problem : low regularity and stability

In: Nonlinear analysis / A, 193 (2020), p. 111529
inJournal
2020 Repository Open Access
Tuhin Ghosh, Angkana Rüland, Mikko Salo and Gunther Uhlmann

Uniqueness and reconstruction for the fractional Calderón problem with a single measurement

In: Journal of functional analysis, 279 (2020) 1, p. 108505
inJournal
2019 Journal Open Access
Georgy Kitavtsev, Gianluca Lauteri, Stephan Luckhaus and Angkana Rüland

A compactness and structure result for a discrete multi-well problem with \(\text{SO}(n)\) symmetry in arbitrary dimension

In: Archive for rational mechanics and analysis, 232 (2019) 1, pp. 531-555
inJournal
2019 Repository Open Access
Francesco Della Porta

A model for the evolution of highly reversible martensitic transformations

In: Mathematical models and methods in applied sciences, 29 (2019) 3, pp. 493-530
inJournal
2019 Repository Open Access
Francesco Della Porta

Analysis of a moving mask hypothesis for martensitic transformations

In: Journal of nonlinear science, 29 (2019) 5, pp. 2341-2384
inJournal
2019 Repository Open Access
Alberto Enciso, María Ángeles García-Ferrero and Daniel Peralta-Salas

Approximation theorems for parabolic equations and movement of local hot spots

In: Duke mathematical journal, 168 (2019) 5, pp. 897-939
inJournal
2019 Repository Open Access
Angkana Rüland, Jamie M. Taylor and Christian Zillinger

Convex integration arising in the modelling of shape-memory alloys : some remarks on rigidity, flexibility and some numerical implementations

In: Journal of nonlinear science, 29 (2019) 5, pp. 2137-2184
inJournal
2019 Journal Open Access
Herbert Koch, Angkana Rüland and Wenhui Shi

Higher regularity for the fractional thin obstacle problem

In: New York journal of mathematics, 25 (2019), pp. 745-838
inJournal
2019 Repository Open Access
Angkana Rüland and Eva Sincich

Lipschitz stability for the finite dimensional fractional Calderón problem with finite Cauchy data

In: Inverse problems and imaging, 13 (2019) 5, pp. 1023-1044
inJournal
2019 Repository Open Access
Angkana Rüland and Jenn-Nan Wang

On the fractional Landis conjecture

In: Journal of functional analysis, 277 (2019) 9, pp. 3236-3270
inJournal
2019 Repository Open Access
Angkana Rüland

Quantitative invertibility and approximation for the truncated Hilbert and Riesz transforms

In: Revista Matemática Iberoamericana, 35 (2019) 7, pp. 1997-2024
inJournal
2019 Repository Open Access
Angkana Rüland and Mikko Salo

Quantitative Runge approximation and inverse problems

In: International mathematics research notices, 2019 (2019) 20, pp. 6216-6234
inJournal
2019 Journal Open Access
María Ángeles García-Ferrero and Angkana Rüland

Strong unique continuation for the higher order fractional Laplacian

In: Mathematics in engineering, 1 (2019) 4, pp. 715-774
inJournal
2018 Journal Open Access
Angkana Rüland and Mikko Salo

Exponential instability in the fractional Calderón problem

In: Inverse problems, 34 (2018) 4, p. 045003
inJournal
2018 Repository Open Access
Angkana Rüland, Christian Zillinger and Barbara Zwicknagl

Higher Sobolev regularity of convex integration solutions in elasticity : the Dirichlet problem with affine data in \(\text{int}(K^{lc})\)

In: SIAM journal on mathematical analysis, 50 (2018) 4, pp. 3791-3841
inJournal
2018 Repository Open Access
Angkana Rüland, Jamie M. Taylor, Christian Zillinger and Barbara Zwicknagl

Microstructures in shape-memory alloys : rigidity, flexibility and some numerical experiments [In: Variational methods for the modelling of inelastic solids ; 4 February - 10 February 2018 ; report no. 5/2018]

In: Oberwolfach reports, 15 (2018) 1, pp. 273-275
inJournal
2018 Repository Open Access
Angkana Rüland, Herbert Koch and Wenhui Shi

Regularity and higher regularity for the thin obstacle problem with Hölder continuous coefficients [In: Calculus of variations ; 29 July - 4 August 2018 ; report no. 35/2018]

In: Oberwolfach reports, 15 (2018) 3, pp. 2127-2130
inJournal
2018 Repository Open Access
Angkana Rüland

Unique continuation for sublinear elliptic equations based on Carleman estimates

In: Journal of differential equations, 265 (2018) 11, pp. 6009-6035
inJournal
2017 Repository Open Access
Angkana Rüland

On quantitative unique continuation properties of fractional Schrödinger equations : doubling, vanishing order and nodal domain estimates

In: Transactions of the American Mathematical Society, 369 (2017) 4, pp. 2311-2362
inJournal
2017 Repository Open Access
Angkana Rüland and Wenhui Shi

Optimal regularity for the thin obstacle problem with \(C^{0,\alpha}\) coefficients

In: Calculus of variations and partial differential equations, 56 (2017) 5, p. 129
inJournal
2017 Repository Open Access
Georgy Kitavtsev, Stephan Luckhaus and Angkana Rüland

Surface energies emerging in a microscopic, two-dimensional two-well problem

In: Proceedings of the Royal Society of Edinburgh / A, 147 (2017) 5, pp. 1041-1089
inJournal
2017 Repository Open Access
Herbert Koch, Angkana Rüland and Wenhui Shi

The variable coefficient thin obstacle problem : higher regularity

In: Advances in differential equations, 22 (2017) 11/12, pp. 793-866
inJournal
2017 Repository Open Access
Herbert Koch, Angkana Rüland and Wenhui Shi

The variable coefficient thin obstacle problem : optimal regularity and regularity of the regular free boundary

In: Annales de l'Institut Henri Poincaré / C, 34 (2017) 4, pp. 845-897
inJournal
2016 Repository Open Access
Angkana Rüland

A rigidity result for a reduced model of a cubic-to-orthorhombic phase transition in the geometrically linear theory of elasticity

In: Journal of elasticity, 123 (2016) 2, pp. 137-177
inJournal
2016 Repository Open Access
Angkana Rüland

The cubic-to-orthorhombic phase transition : rigidity and non-rigidity properties in the linear theory of elasticity

In: Archive for rational mechanics and analysis, 221 (2016) 1, pp. 23-106
inJournal
2016 Repository Open Access
Herbert Koch, Angkana Rüland and Wenhui Shi

The variable coefficient thin obstacle problem : Carleman inequalities

In: Advances in mathematics, 301 (2016), pp. 820-866
inJournal
2015 Repository Open Access
Angkana Rüland

On the backward uniqueness property for the heat equation in two-dimensional conical domains

In: Manuscripta mathematica, 147 (2015) 3/4, pp. 415-436
inJournal
2015 Repository Open Access
Georgy Kitavtsev, Stephan Luckhaus and Angkana Rüland

Surface energies arising in microscopic modeling of martensitic transformations

In: Mathematical models and methods in applied sciences, 25 (2015) 4, pp. 647-683
inJournal
2015 Repository Open Access
Angkana Rüland

Unique continuation for fractional Schrödinger equations with rough potentials

In: Communications in partial differential equations, 40 (2015) 1, pp. 77-114