Publikationen der Mathematischen Institute 2017
Representation zeta functions of self-similar branched groups. Groups Geom. Dyn. 11 (2017), no. 1, 29-56.
Poisson-Furstenberg boundary and growth of groups. Probab. Theory Related Fields 168 (2017), no. 1-2, 347-372.
Distortion of imbeddings of groups of intermediate growth into metric spaces. Proc. Amer. Math. Soc. 145 (2017), no. 5, 1943-1952.
Growth of groups and wreath products. In: Groups, graphs and random walks (Eds. T. Ceccherini-Silberstein, M. Salatori, E. Sava-Huss), London Math. Soc. Lecture Note Ser., 436 (2017), Cambridge Univ. Press, Cambridge, 1-76. ISBN 9781316604403.
One-dimensional phase retrieval with additional interference intensity measurements. Results Math. 72 (2017), no. 1-2, 1-24.
Non-negativity constraints in the one-dimensional discrete-time phase retrieval problem. Inf. Inference 6 (2017), no. 2, 213-224.
Ambiguities in one-dimensional phase retrieval from magnitudes of a linear canonical transform. ZAMM Z. Angew. Math. Mech. 97 (2017), no. 9, 1078-1082.
Geometric and algebraic approaches to mixed-integer polynomial optimization using sos programming. Dissertationschrift, Göttingen: Georg-August Universität (2017).
Identifiability for blind source separation of multiple finite alphabet linear mixtures. IEEE Trans. Inform. Theory 63 (2017), no. 9, 5506-5517.
A more general method to classify up to equivariant KK-equivalence. Doc. Math. 22 (2017), 423-454.
Sparse FFT for functions with short frequency support. Dolomites Res. Notes Approx. 10 (2017), Special Issue, 43-55.
Applications of the Kuznetsov formula on GL(3) II: the level aspect. Math. Ann. 369 (2017), no. 1-2, 723-759.
On triple correlations of divisor functions. Bull. Lond. Math. Soc. 49 (2017), no. 1, 10-22.
On moments of twisted L-functions. Amer. J. Math. 139 (2017), no. 3, 707-768.
Small gaps in the spectrum of the rectangular billiard. Ann. Sci. Ec. Norm. Super. (4) 50 (2017), no. 5, 1283-1300.
Applications of smooth bilinear sums of Kloosterman sums. Proceedings of the Steklov Institute of Mathematics (memorial volume for I. M. Vinogradov) 296 (2017), 24-35.
Some applications of smooth bilinear forms with Kloosterman sums. P STEKLOV I MATH+ 296(1) (2017), 18-29.
Rational points on the inner product cone via the hyperbola method. Mathematika (Special issue in honour of Klaus Roth) 63 (2017), 780-796.
Virtual fundamental classes for moduli spaces of sheaves on Calabi-Yau four-folds. Geom. Topol. 21 (2017), no. 6, 3231-3311.
Genealogies of two linked neutral loci after a selective sweep in a large population of stochastically varying size. Adv. in Appl. Probab. 49 (2017), no. 1, 279-326.
Local oscillations in moderately dense sequences of primes. In: Number theory - Diophantine problems, uniform distribution and applications (Hrsg. Chr. Elsholtz, P. Grabner), 193-210, Springer, Cham, 2017, ISBN 978-3-319-55357-3.
Additive representation in short intervals, II: sums of two like powers. Math. Z. 286 (2017), no. 1-2, 179-196.
Rational points on the inner product cone via the hyperbola method. Mathematika (Special issue in honour of Klaus Roth) 63 (2017), 780-796.
A region-based easy-path wavelet transform for sparse image representation. Int. J. Wavelets Multiresolut. Inf. Process. 15 (2017), no. 5, 1750045, 23 pp.
Wedge-local fields in integrable models with bound states II: Diagonal S-matrix. Ann. Henri Poincare 18 (2017), no. 1, 233-279.
Lagrange multipliers, (exact) regularization and error bounds for monotone variational inequalities. Math. Program. 161 (2017), no. 1-2, Ser. A, 519-549.
Categorifying the 𝔰𝔩 (2, ℂ) Knizhnik-Zamolodchikov connection via an infinitesimal 2-Yang-Baxter operator in the string Lie-2-algebra. Adv. Theor. Math. Phys. 21 (2017), no. 1, 147-229.
Applications of the class number one problem to Diophantine equations and divisibility problems. Bull. Math. Soc. Sci. Math. Roumanie (N.S.) 60(108) (2017), no. 1, 19-24.
Anomalies of minimal 𝒩=(0,1) and 𝒩=(0,2) sigma models on homogeneous spaces. J. Phys. A 50 (2017), no. 2, 025401, 39 pp.
p-adic zeros of quintic forms. Math. Comp. 86 (2017), no. 307, 2469-2478.
Estimation of parameters in a planar segment process with a biological application Image Anal. Stereol. 36 (2017), 25-33.
Essentials of backward nested descriptors inference. In: Functional Statistics and Related Fields. Contributions to Statistics (Eds. Aneiros G., G. Bongiorno E., Cao R., Vieu P.), Springer, Cham (2017), 137-144. ISBN 978-3-319-55845-5.
The realization problem for tail correlation functions. Extremes 20 (2017), no. 1, 121-168.
The traveling salesman problem on grids with forbidden neighborhoods. J. Comb. Optim. 34 (2017), no. 3, 891-915.
Minimization and maximization versions of the quadratic travelling salesman problem. Optimization 66 (2017), no. 4, 521-546.
Computational helioseismology in the frequency domain: acoustic waves in axisymmetric solar models with flows. Astronomy & Astrophysics (2017) 600: A35.
Line Pool Generation. Public Transport 9(1-2) (2017), 7-32.
Perfect fingerprint orientation fields by locally adaptive global models. IET Biometrics 6 (3) (2017), 183-190.
DOTmark - A Benchmark for Discrete Optimal Transport. IEEE Access 5 (2017), 271 - 282.
Bayesian Modeling of Biomolecular Assemblies with Cryo-EM Maps. Frontiers in molecular biosciences (2017), no. 4.
An evolutionarily conserved glycine-tyrosine motif forms a folding core in outer membrane proteins. PloS one (2017), no. 12 (8), e0182016.
Data-driven coarse graining of large biomolecular structures. PloS one (2017), no. 12 (8), e0183057.
Model evidence from nonequilibrium simulations. Advances in Neural Information Processing Systems 30 (2017), 1751-1760.
A Teacher Education Approach for Integrated Science Instruction. In: Conference Proceedings. New Perspectives in Science Education. 6th Edition (Ed. Pixel), LibreriaUniversitaria (2017), p. 357. 16-17 March 2017, Florence. ISBN 8862928475
Topic Study Group No. 51: Diversity of Theories in Mathematics Education. In Proceedings of the 13th International Congress on Mathematical Education (Ed. G. Kaiser), Springer, Cham (2017), 613-617. ICME-13, 24-31 July 2016, Hamburg. ISBN 978-3-319-62596-6.
The Learning and Teaching of Geometry in Secondary Schools: A Modeling Perspective. Series: IMPACT: Interweaving Mathematics Pedagogy and Content for Teaching (Eds. T. Kreyfus, F.K. Lester, G. Törner) (2017), Routledge Taylor & Francis, London, New York. ISBN 978-0415856911.
Delay resistant line planning with a view towards passenger transfers. TOP 25 (2017), no. 3, 467-496.
Source estimation for propagation processes on complex networks with an application to delays in public transportation systems. J. R. Stat. Soc. Ser. C. Appl. Stat. 66 (2017), no. 3, 521-536.
Line Pool Generation. Public Transport 9(1-2) (2017), 7-32.
Characterizations of variational source conditions, converse results, and maxisets of spectral regularization methods. SIAM J. Numer. Anal. 55 (2017), no. 2, 598-620.
Stability estimates for linearized near-field phase retrieval in X-ray phase contrast imaging. SIAM J. Appl. Math. 77 (2017), no. 2, 384-408.
Variational source conditions and stability estimates for inverse electromagnetic medium scattering problems. Inverse Probl. Imaging 11 (2017), no. 1, 203-220.
Computational helioseismology in the frequency domain: acoustic waves in axisymmetric solar models with flows. Astronomy & Astrophysics (2017) 600: A35.
An eigenvalue approach for the automatic scaling of unknowns in model-based reconstructions: application to real-time phase-contrast flow MRI. NMR in Biomedicine (2017), Vol. 30, Issue 2, e3835-n/a.
Attosecond Electron Pulse Trains and Quantum State Reconstruction in Ultrafast Transmission Electron Microscopy. Nature Photonics (2017) 11, 793-797.
Semi-Local Tractography Strategies Using Neighborhood Information. Medical Image Analysis (2017) 38, 165-183.
Estimation of parameters in a planar segment process with a biological application. Image Anal. Stereol. (2017) 36, 25-33.
Perfect fingerprint orientation fields by locally adaptive global models. IET Biometrics (2017), 6 (3), 183-190.
Essentials of backward nested descriptors inference. In: Functional Statistics and Related Fields. Contributions to Statistics (Eds. Aneiros G., G. Bongiorno E., Cao R., Vieu P.), Springer, Cham (2017), 137-144. ISBN 978-3-319-55845-5.
Konrad Jacobs (1928-2015). Jahresber. Dtsch. Math.-Ver. 119 (2017), no. 3, 187-199.
On Trefftz' integral equation for the Bernoulli free boundary value problem. Numer. Math. 136 (2017), no. 2, 503-522.
A boundary integral equation method for the transmission eigenvalue problem. Appl. Anal. 96 (2017), no. 1, 23-38.
Nonlinear integral equations for Bernoulli's free boundary value problem in three dimensions. Comput. Math. Appl. 74 (2017), 2784-2791.
Adaptive empirical Bayesian smoothing splines. Bayesian Anal. 12 (2017), no. 1, 219-238.
Kernel partial least squares for stationary data. Journ. Mach. Learn. Research (2017), 18(123), 1-41.
Decision uncertainty in multiobjective optimization. J. Global Optim. 69 (2017), no. 2, 485-510.
Direct numerical simulations of Taylor bubbles in a square mini-channel: detailed shape and flow analysis with experimental validation. In: Transport processes at fluidic interfaces. (Eds. D. Bothe, A. Reusken). Advances in Mathematical Fluid Mechanics (2017) 663-679. Birkhäuser Basel /Springer International Publishing. ISBN 978-3-319-56601-6.
High order unfitted finite element methods for interface problems and PDEs on surfaces. In: Transport processes at fluidic interfaces. (Eds. D. Bothe, A. Reusken). Advances in Mathematical Fluid Mechanics (2017) 33-63. Birkhäuser Basel /Springer International Publishing. ISBN 978-3-319-56601-6.
Optimal preconditioners for nitsche-xfem discretizations of interface problems. Numerische Mathematik (2017), 135, 313-332.
Seismic data interpolation and denoising by learning a tensor tight frame. Inverse Problems 33 (2017), no. 10, 105011, 28 pp.
Stabilised dG-FEM for incompressible natural convection flows with boundary and moving interior layers on non-adapted meshes. J. Comput. Phys. 335 (2017), 760-779.
A simple globally convergent algorithm for the nonsmooth nonconvex single source localization problem. J. Global Optim. 69 (2017), no. 4, 889-909.
Lagrange multipliers, (exact) regularization and error bounds for monotone variational inequalities. Math. Program. 161 (2017), no. 1-2, Ser. A, 519-549.
About Subtransversality of Collections of Sets. Set-Valued and Variational Analysis (2017), 25(4), 701-729 (2017).
Phase Retrieval. What's New? SIAG/OPT Views and News, 25(1) (2017), 1-5.
Source estimation for propagation processes on complex networks with an application to delays in public transportation systems. J. R. Stat. Soc. Ser. C. Appl. Stat. 66 (2017), no. 3, 521-536.
Stability estimates for linearized near-field phase retrieval in X-ray phase contrast imaging. SIAM J. Appl. Math. 77 (2017), no. 2, 384-408.
Crossed products for actions of crossed modules on C*-algebras. J. Noncommut. Geom. 11 (2017), no. 3, 1195-1235.
Inverse semigroup actions on groupoids. Rocky Mountain J. Math. 47 (2017), no. 1, 53-159.
Reduced C*-algebras of Fell bundles over inverse semigroups. Israel J. Math. 220 (2017), no. 1, 225-274.
A more general method to classify up to equivariant KK-equivalence. Doc. Math. 22 (2017), 423-454.
Semidirect products of C*-quantum groups: multiplicative unitaries approach. Comm. Math. Phys. 351 (2017), no. 1, 249-282.
Representations of C*-Algebras Unbounded Operators: C*-Hulls, Local-Global Principle, and Induction. Doc. Math. 22 (2017), 1375-1466.
On equation Xn-1=BZn. Int. J. Number Theory 13 (2017), no. 3, 549-570.
Heterogeneous change point inference. J. R. Stat. Soc. Ser. B. Stat. Methodol. 79 (2017), no. 4, 1207-1227.
Identifiability for blind source separation of multiple finite alphabet linear mixtures. IEEE Trans. Inform. Theory 63 (2017), no. 9, 5506-5517.
Autocovariance estimation in regression with a discontinuous signal and m-dependent errors: a difference-based approach. Scand. J. Stat. 44 (2017), no. 2, 346-368.
A studentized permutation test for three-arm trials in the `gold standard' design. Stat. Med. 36 (2017), no. 6, 883-898.
Persistence barcodes versus Kolmogorov signatures: detecting modes of one-dimensional signals. Found. Comput. Math. 17 (2017), no. 1, 1-33.
Kernel partial least squares for stationary data. Journ. Mach. Learn. Research (2017), 18(123), 1-41.
On operator norms for hyperbolic groups. J. Topol. Anal. 9 (2017), no. 2, 291-296.
Unimodular graphs and Eisenstein sums. J. Algebraic Combin. 45 (2017), no. 2, 423-454.
Look-Ahead Approaches for Integrated Planning in Public Transportation. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 17:1-17:16, ISBN 978-3-95977-042-2.
Noncommutative principal bundles through twist deformation. Comm. Math. Phys. 352 (2017), no. 1, 287-344.
Reading Riemann. In: Exploring the Riemann zeta function (Eds. H. Montgomery, A. Nikeghbali, M. Th. Rassias), 265-285, Springer, Cham, 2017.
Heterogeneous change point inference. J. R. Stat. Soc. Ser. B. Stat. Methodol. 79 (2017), no. 4, 1207-1227.
Seismic data interpolation and denoising by learning a tensor tight frame. Inverse Problems 33 (2017), no. 10, 105011, 28 pp.
A sparse fast Fourier algorithm for real non-negative vectors. J. Comput. Appl. Math. 321 (2017), 532-539.
Sparse phase retrieval of one-dimensional signals by Prony's method. Frontiers of Applied Mathematics and Statistics (2017) 3:5.
The category of reduced orbifolds in local charts. J. Math. Soc. Japan 69 (2017), no. 2, 755-800.
Amount of failure of upper-semicontinuity of entropy in non-compact rank-one situations, and Hausdorff dimension. Ergodic Theory Dynam. Systems 37 (2017), no. 2, 539-563.
Application of AAK theory for sparse approximation. Dissertationschrift, Göttingen: Georg-August Universität (2017).
Confidence Corridors for Multivariate Generalized Quantile Regression. Journal of Business & Economic Statistics Vol. 35 (2017), Iss. 1, 70-85.
On the size of the largest empty box amidst a point set. Discrete Appl. Math. 230 (2017), 146-150.
A no-go theorem for nonabelionic statistics in gauged linear sigma-models. Adv. Theor. Math. Phys. 21 (2017), no. 4, 901-920.
A discrete parametrized surface theory in R3. Int. Math. Res. Not. IMRN 2017, no. 14, 4217-4258.
Kernel-based adaptive approximation of functions with discontinuities. Appl. Math. Comput. 307 (2017), 113-123.
Convergence analysis of general spectral methods. J. Comput. Appl. Math. 313 (2017), 284-293.
Error Analysis of Nodal Meshless Methods. In: Meshfree Methods for Partial Differential Equations VIII (Eds. M. Griebel, M.A. Schweitzer). Lecture Notes in Computational Science and Engineering 115 (2017), 117-143. Proceedings of the 8th International Workshop on Meshfree Methods for Partial Differential Equations, Bonn 2015. Springer International, ISBN 978-3-319-51953-1.
On the center-valued Atiyah conjecture for L2-Betti numbers. Doc. Math. 22 (2017), 659-677.
On computing homology gradients over finite fields. Math. Proc. Cambridge Philos. Soc. 162 (2017), no. 3, 507-532.
Robustness Tests for Public Transport Planning. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 6:1-6:16, ISBN 978-3-95977-042-2.
Look-Ahead Approaches for Integrated Planning in Public Transportation. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 17:1-17:16, ISBN 978-3-95977-042-2.
Integrating Passengers' Assignment in Cost-Optimal Line Planning. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 5:1-5:16, ISBN 978-3-95977-042-2.
Angebotsplanung im öffentlichen Verkehr - Planerische und algorithmische Lösungen. Tagungsbericht HEUREKA 17 (2017), 22./23. März 2017, Stuttgart. FGSV Verlag, Köln. ISBN 978-3-86446-177-4.
Look-Ahead Approaches for Integrated Planning in Public Transportation. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 17:1-17:16, ISBN 978-3-95977-042-2.
Decision uncertainty in multiobjective optimization. J. Global Optim. 69 (2017), no. 2, 485-510.
A biobjective approach to recoverable robustness based on location planning. European J. Oper. Res. 261 (2017), no. 2, 421-435.
Source estimation for propagation processes on complex networks with an application to delays in public transportation systems. J. R. Stat. Soc. Ser. C. Appl. Stat. 66 (2017), no. 3, 521-536.
A unified approach to uncertain optimization. European J. Oper. Res. 260 (2017), no. 2, 403-420.
The travelers route choice problem under uncertainty: dominance relations between strategies. Oper. Res. 65 (2017), no. 1, 184-199.
A general approach for the location of transfer points on a network with a trip covering criterion and mixed distances. European J. Oper. Res. 260 (2017), no. 1, 108-121.
Line Pool Generation. Public Transport (2017), 9(1-2), 7-32.
An Eigenmodel for Iterative Line Planning, Timetabling and Vehicle Scheduling in Public Transportation. Transportation Research C 74 (2017), 348-365.
Robustness Tests for Public Transport Planning. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 6:1-6:16, ISBN 978-3-95977-042-2.
Look-Ahead Approaches for Integrated Planning in Public Transportation. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 17:1-17:16, ISBN 978-3-95977-042-2.
Integrating Passengers' Assignment in Cost-Optimal Line Planning. In: 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization and Systems (Eds. G. D'Angelo, T. Dollevoet), ATMOS (2017) Schloss Dagstuhl, OASIcs 59, 5:1-5:16, ISBN 978-3-95977-042-2.
Angebotsplanung im öffentlichen Verkehr - Planerische und algorithmische Lösungen. Tagungsbericht HEUREKA 17 (2017), 22./23. März 2017, Stuttgart. FGSV Verlag, Köln. ISBN 978-3-86446-177-4.
Semi-Local Tractography Strategies Using Neighborhood Information. Medical Image Analysis (2017) 38, 165-183.
Stabilised dG-FEM for incompressible natural convection flows with boundary and moving interior layers on non-adapted meshes. J. Comput. Phys. 335 (2017), 760-779.
DOTmark - A Benchmark for Discrete Optimal Transport. IEEE Access 5 (2017), 271 - 282.
Wireless network signals with moderately correlated shadowing still appear Poisson. IEEE Trans. Inform. Theory 63 (2017), no. 2, 1177-1198.
Geometric invariant theory for principal three-dimensional subgroups acting on flag varieties. In: Representation theory - current trends and perspectives (Eds. H. Krause et al.), 637-663, EMS Ser. Congr. Rep., Eur. Math. Soc., Zürich, 2017, ISBN 978-3-03719-171-2.
Global Okounkov bodies for Bott-Samelson varieties. J. Algebra 490 (2017), 518-554.
Dimension quotients of metabelian Lie rings. Internat. J. Algebra Comput. 27 (2017), no. 2, 251-258.
Heterogeneous change point inference. J. R. Stat. Soc. Ser. B. Stat. Methodol. 79 (2017), no. 4, 1207-1227.
Persistence barcodes versus Kolmogorov signatures: detecting modes of one-dimensional signals. Found. Comput. Math. 17 (2017), no. 1, 1-33.
Kernel partial least squares for stationary data. Journ. Mach. Learn. Research (2017), 18(123), 1-41.
Convergence rate analysis for averaged fixed point iterations in common fixed point problems. SIAM J. Optim. 27 (2017), no. 1, 1-33.
Regularity properties of non-negative sparsity sets. J. Math. Anal. Appl. 447 (2017), no. 2, 758-777.
Perfect fingerprint orientation fields by locally adaptive global models. IET Biometrics (2017), 6 (3), 183-190.
About Subtransversality of Collections of Sets. Set-Valued and Variational Analysis (2017), 25(4), 701-729 (2017).
Geometric invariant theory for principal three-dimensional subgroups acting on flag varieties. In: Representation theory - current trends and perspectives (Eds. H. Krause et al.), 637-663, EMS Ser. Congr. Rep., Eur. Math. Soc., Zürich, 2017, ISBN 978-3-03719-171-2.
On the explicit torsion anomalous conjecture. Trans. Amer. Math. Soc. 369 (2017), no. 9, 6465-6491.
A sparse fast Fourier algorithm for real non-negative vectors. J. Comput. Appl. Math. 321 (2017), 532-539.
A primer on Laplacians. In: Generalized Barycentric Coordinates in Computer Graphics and Computational Mechanics (Eds. K. Horman, N. Sukumar), CRC Press Taylor & Francis Group Boca Raton (2017), Chapter 5: 77-96. ISBN 978-1498763592.
A glimpse into discrete differential geometry. Notices Amer. Math. Soc. 64 (2017), no. 10, 1153-1159.
A discrete parametrized surface theory in R3. Int. Math. Res. Not. IMRN 2017, no. 14, 4217-4258.
Persistence barcodes versus Kolmogorov signatures: detecting modes of one-dimensional signals. Found. Comput. Math. 17 (2017), no. 1, 1-33.
The Heat Method for Distance Computation. Communications of the ACM 60 No. 11 (2017), 90-99.
Functional Thin Films on Surfaces. IEEE Trans. on Vis. and Comp. Graph. 32(3) (2017), 1179-1192.
Characterizations of variational source conditions, converse results, and maxisets of spectral regularization methods. SIAM J. Numer. Anal. 55 (2017), no. 2, 598-620.
Variational source conditions and stability estimates for inverse electromagnetic medium scattering problems. Inverse Probl. Imaging 11 (2017), no. 1, 203-220.
The Heat Method for Distance Computation. Communications of the ACM 60 No. 11 (2017), 90-99.
On semilinear Tricomi equations with critical exponents or in two space dimensions. J. Differential Equations 263 (2017), no. 12, 8102-8137.
Blowup time and blowup mechanism of small data solutions to general 2-D quasilinear wave equations. Commun. Pure Appl. Anal. 16 (2017), no. 3, 719-744.
On the global solution problem for semilinear generalized Tricomi equations, I. Calc. Var. Partial Differential Equations 56 (2017), no. 2, Art. 21, 24 pp.
Higher extensions of Lie algebroids. Commun. Contemp. Math. 19 (2017), no. 3, 1650034, 41 pp.