NA Digest, V. 18, # 31

NA Digest Monday, August 06, 2018 Volume 18 : Issue 31

Today's Editor:

Daniel M. Dunlavy
Sandia National Labs

Today's Topics: Subscribe, unsubscribe, change address, or for na-digest archives:

Submissions for NA Digest:

From: Gerd Baumann
Date: August 01, 2018
Subject: Symposium Honoring Frank Stenger's 80th, Greece, Sep 2018

I like to draw your attention to our special symposium in honor of
Frank Stenger's 80th birthday. The symposium takes place within the
frame of ICNAAM 2018 at Rhodes, Greece, during the period September
13th till 18th, 2018.

Talks are welcome and will be published in a special volume dedicated
to Frank's anniversary. We also accept contributions to the special
volume published by Springer.

If you like to join at Rhodes you need to register your talk via the
ICNAAM 2018 web site:

Send me a short notice including your title and a few words for an

Information on accommodation and travel are also available from the

From: Ekaterina Kostina
Date: August 05, 2018
Subject: IWR Mathematical Optimization, Germany, Oct 2018

The Interdisciplinary Center for Scientific Computing (IWR) of
Heidelberg University will organize the IWR School 2018 "Advances in
Mathematical Optimization", October 8-12, 2018.

The IWR School 2018 focuses on important modern methods in the field
of mathematical optimization. We target young researchers who want to
deepen their knowledge of the methods that play a crucial role in
solving demanding optimization problems in many application domains in
science and engineering, economics, medicine, data analysis and
increasingly in industrial and societal problems. The IWR School 2018
covers fundamental concepts, latest innovations and many practical
applications of continuous, discrete and mixed-integer optimization as
well as optimal control and game theory.

The IWR School 2018 is taught in a series of courses by:

- Tobias Achterberg, Gurobi
- Hans Georg Bock, Heidelberg University
- Christian Kirches, Technical University of Braunschweig
- Ekaterina Kostina, Heidelberg University
- Martine Labbe, Universite Libre de Bruxelles and INRIA
- Gerhard Reinelt, Heidelberg University
- Andrea Tramontani, CPLEX Optimization, IBM Italy
- Stephen J. Wright, University of Wisconsin-Madison

Registration deadline: August 31, 2018 (150,- EURO). The fee covers
the attendance to the IWR school, class materials, welcome reception,
lunch and coffee breaks on the course days as well as the social
program. The IWR school offers a mobility program to support
participants to attend the event.

For further information and registration please visit the website of
the IWR School 2018 at

From: Jianlin Xia
Date: August 05, 2018
Subject: Fast Direct Solvers, USA, Nov 2018

Purdue CCAM (Center for Computational & Applied Mathematics) is
hosting the 2018 Conference on Fast Direct Solvers on Nov 9-11, 2018
(it will start from the afternoon of Fri, Nov 9). The purpose of the
conference is to discuss and exchange ideas on topics related to fast
direct solvers, structured matrices, sparsity and data sparsity, high
performance direct solvers, randomized algorithms, structured
preconditioning, fast PDE and IE solvers, related applications, and
other relevant subjects. The organizers are Jie Shen and Jianlin Xia.

The following is a tentative list of invited speakers:

Eric Darve, Stanford University
Ming Gu, UC Berkeley
Daniel Kressner, EPFL, Switzerland
Sabine Le Borne, Hamburg University of Technology, Germany
Eric Michielssen, University of Michigan
Olaf Schenk, Universita della Svizzera italiana, Switzerland

Contributed talks are welcome. Please see the following webpage for
more information:

From: Dirk Nuyens
Date: July 31, 2018
Subject: RICAM High-dimensional Problems and UQ, Austria, Dec 2018

Workshop 4: "Frontier Technologies for High-Dimensional Problems and
Uncertainty Quantification" In the RICAM special semester on
"Multivariate Algorithms and their Foundations in Number Theory"
December 17-21, 2018 + tutorials on Friday December 14, 2018.

Invited speakers: Albert Cohen (Universite Pierre et Marie Curie,
Paris), Ivan Graham (University of Bath), Michael Griebel (University
of Bonn), Christoph Schwab (ETH Zurich), Ian H. Sloan (University of
New South Wales, Sydney), Aretha Teckentrup (University of Edinburgh),
Raul Tempone (King Abdullah University of Science and Technology),
Stefan Vandewalle (KU Leuven).

There will be a small number of contributed talks at the workshop.
Please register by September 15.

We invite PhD students to apply for 8 travel funds of 600 euro each to
cover travel and accommodation. To apply send a 1 page resume + 3
paragraphs of motivation + a support letter from the supervisor to
before September 15. PhD students applying for travel and
accommodation support need to participate in the tutorials on the
Friday before the workshop.

The tutorials give an introduction to the main topics and will be
given by Anthony Nouy (Ecole Centrale Nantes), Dirk Nuyens (KU Leuven)
and Rob Scheichl (University of Bath) on Friday December 14.

From: Christian Kirches
Date: August 02, 2018
Subject: GAMM Optimization, Austria, Feb 2019

The 90th Annual Meeting of the International Association of Applied
Mathematics and Mechanics (GAMM) will take place from February 18-22,
2019 in Vienna, Austria ( On behalf
of the organizing committee we would like to invite you and the
members of your group to contribute a talk to the Section S16
"Optimization". This year, we are happy to have two distinguished
speakers on this topic:

- Alexandra Schwartz (TU Darmstadt)
- Andreas Potschka (Heidelberg University)

Contributed talks will have a length of 15 minutes plus 5 minutes for
discussion. For more detailed information concerning the submission of
abstracts as well as registration, please visit the conference website

Deadline for abstract submission this year is already on October 31,
2018; notification of acceptance of abstract November 23, 2018. Online
registration for speakers opens in August, 2018 and will close on
December 14, 2018. Deadline for early bird registration is November
30, 2018. We are looking forward to seeing and in Vienna! In the
meantime, if you have any questions regarding the scope or
organization of Section S16 (in particular regarding the distinction
to S19 "Optimization of differential equations"), don't hestitate to
contact us.

Christian Kirches (
Christian Clason (
(Section Organizers)

From: Michal Kocvara
Date: August 01, 2018
Subject: Chair Position, Mathematical Optimization, Univ of Birmingham, UK

School of Mathematics, College of Engineering and Physical Sciences
University of Birmingham, UK

Applications are invited for a Chair/Reader post in Mathematical
Optimization. The School is seeking to appoint an active and committed
researcher in one of the emerging areas of modern Mathematical
Optimization, such as Stochastic Optimization, Distributed
Optimization, Optimization for Data Analytics.

The successful candidates will have a PhD (or equivalent) in
Mathematics or Computer Science, a first-class research record in
Mathematics, and a commitment to teaching, along with excellent
communication skills. Candidates will demonstrate experience in
attracting external funding.

Informal enquiries may be addressed to Professor Michal Kocvara,
tel: +44 (0) 121 414 6598, email:

Salary: Competitive package for outstanding candidate

Closing date: 22 August 2018

To download the details and submit an electronic application online
visit: -> Current vacancies
online -> post number 1406

See also

From: Melchior Samuel
Date: August 04, 2018
Subject: Scientific Computing Positions, HPC Blue Brain Project, EPFL

The HPC team of the Blue Brain Project at EPFL is expanding and
looking for C++, Python developers interested in scientific computing
/ HPC (junior/senior level); we have multiple open positions for our
fascinating and challenging project:

- HPC Developer/Performance Engineer (
- C++/Python Software Engineer (
- Big Data Engineer (
- Scientific Developer (Numerical Methods): (
- Machine Learning / Deep Learning (

Starte Date : Flexible
Contract : Full time, Renewable
Location : Geneva, Switzerland

If more information is needed about project/positions/relocation, we
will be happy to discuss; don't hesitate to contact me!

From: Tapio Schneider
Date: August 01, 2018
Subject: Software Engineer Position, Earth System Modeling, Caltech

Software Engineers in Data-Informed Earth System Modeling at Caltech

Climate change projections continue to be marred by large
uncertainties. But breakthroughs in their accuracy are within reach,
thanks to recent advances in the computational and data sciences and
in the availability of Earth observations from space and from the
ground. The California Institute of Technology (Caltech) and partner
institutions are developing a new Earth system modeling platform to
harness these advances. It will fuse an Earth system model (ESM) with
global observations and targeted local high-resolution simulations of
clouds, turbulence, and other elements of the Earth system.

As a Software Engineer, you will collaborate with a dynamic, multi-
disciplinary team of scientists, engineers, and applied
mathematicians, spanning Caltech, NASA's Jet Propulsion Laboratory,
the Massachusetts Institute of Technology, and the Naval Postgraduate
School. You will Work on a fast-paced, high-profile project with a
significant opportunity for impacting Earth system modeling worldwide;
Design, develop, test, deploy, maintain, and improve the ESM platform
software; and Be a hands-on coder applying the best industry standards
for code health, scalability, and robustness.

As a Lead Software Engineer, you will additionally Devise innovative
ideas and technical designs for an ESM platform that is scalable and
adaptable to a variety of hardware architectures, including
distributed computing architectures; Provide technical leadership and
solve end-to-end the most difficult design and implementation
problems; and Mentor more junior Software Engineers.

We are seeking to fill several software engineering positions within
this initiative. As minimum qualification, you are expected to have
Completed a BS degree in computer science or a different science and
engineering field; Experience developing large software projects in a
distributed fashion, e.g., contributing to an open source project with
distributed contributors; Experience working with high-performance
computing systems including manycore processors and accelerators; and
Experience with at least two general purpose programming languages
(e.g., C/C++, C#, Objective C, Python, Fortran).

For more information about the modeling initiative and positions,
please visit or contact Professors Tapio
Schneider or Andrew Stuart at

Applications with a resume, a one-page statement of interests, and
three references should be submitted at
org=CALTECH&cws=37&rid=3829 for the software engineer positions, and
org=CALTECH&cws=37&rid=3831 for the lead software engineer
positions. Review of applications will begin August 9 and will
continue until the positions are filled.

From: Carlos Jerez-Hanckes
Date: July 31, 2018
Subject: Open-rank Positions, Mathematical and Computational Eng, Pontificia Univ

The Institute for Mathematical and Computational Engineering was
recently created as a joint endeavor between the School of Engineering
and the Faculty of Mathematics of the Pontificia Universidad Catolica
de Chile in Santiago. The Institute aims to become an international
referent on addressing complex problems in science, technology, and
society, pushing forward interdisciplinary research, connecting
advanced mathematical modeling with various disciplines. Current
faculty members of the Institute conduct research in a wide variety of
areas such as data science, optimization (continuous and discrete),
inverse problems, uncertainty quantification, theory of computing,
numerical analysis, and high-performance computing. This recent
interdisciplinary effort has already generated important
collaborations with several leading international centers. Application
areas include industrial problems and management sciences, social
sciences, astronomical instrumentation, optics and nanophotonics,
biological and medical engineering, among others. The Institute is
also responsible for the Mathematical Engineering program---a highly
selective undergraduate program within the School of Engineering---and
is in the process of creating interdisciplinary graduate programs in
Mathematical and Computational Engineering leading to master and
doctoral degrees.

As part of its strategic plans, the Institute is offering two
open-rank positions at the assistant or associate level. We invite
highly qualified candidates in all areas of applied mathematics
addressed by the Institute to apply to these positions, although
preference might be given to applicants interested in the
mathematical, computational and statistical interplay between machine
learning, data science, uncertainty quantification and stochastic
modeling, and also the potentials of high- performance computing in
those areas, as well as in connection with online algorithms,
optimization and numerical problems. Applicants should have completed
or be close to complete a Ph.D. degree in Applied Mathematics,
Statistics, Operations Research, Computer Science or related areas. An
Engineering background is highly desirable.

The selected candidates will be expected to conduct interdisciplinary
research and be able to connect with other disciplines in the
University. The ability to address relevant applied problems in
industry and public sector, among others, is also very
valuable. Selected candidates will also be expected to teach and
contribute to the Mathematical and Computational Engineering
curriculum. Typical teaching load is three semester long courses a
year, which could be graduate or undergraduate level. Command of
Spanish is not required to apply but the selected candidates are
expected to learn the language.

The deadline for applying is October 1, 2018 and more details and
application instructions are available at the following link:

From: Tapio Schneider
Date: August 01, 2018
Subject: Postdoc/Research Scientist Positions, Earth System Modeling, Caltech

Postdoctoral Scholars and Research Scientists in Data-Informed Earth
System Modeling at Caltech

Climate change projections continue to be marred by large
uncertainties. But breakthroughs in their accuracy are within reach,
thanks to recent advances in the computational and data sciences and
in the availability of Earth observations from space and from the
ground. The California Institute of Technology (Caltech) and partner
institutions are developing a new Earth system modeling platform to
harness these advances. It will fuse an Earth system model (ESM) with
global observations and targeted local high-resolution simulations of
clouds, turbulence, and other elements of the Earth system.

As a postdoctoral scholar or research scientist, you will collaborate
with a dynamic, multi-disciplinary team of scientists, engineers, and
applied mathematicians, spanning Caltech, NASA's Jet Propulsion
Laboratory, the Massachusetts Institute of Technology, and the Naval
Postgraduate School. You will contribute to the development of a
data-informed ESM by devising scalable data assimilation and machine
learning (DA/ML) algorithms, to allow them to learn systematically
from diverse data sources, such as satellite observations or
high-resolution simulations of turbulent flows; developing physically
informed parameterizations of subgrid- scale processes in the
atmosphere that are suitable for DA/ML approaches, including models
for boundary layer turbulence, clouds, and convection; or building and
prototyping numerical and computational methods for an atmosphere
dynamical core that is scalable and adaptable to emerging hardware

We are seeking to fill several postdoctoral and research scientist
positions within this initiative, spanning a range of expertise from
computational and applied mathematics to the atmospheric and oceanic
sciences. As minimum qualification, you are expected to have Completed
a doctoral degree in applied mathematics, atmospheric or oceanic
sciences, computer science, engineering, physics, statistics or a
related field at the time of the appointment; A strong physical,
mathematical, and/or computational background; Programming experience
in at least one general purpose language; and Demonstrated effective
written and verbal communication skills.

We prefer for you to have Experience with high-performance parallel
computing; and Experience working in multi-disciplinary teams and
interacting cross-functionally with a wide variety of people.

For the research scientist positions, at least 2 years of postdoctoral
research experience and leadership experience of research projects as
demonstrated by publications are also required.

For more information about the modeling initiative and positions,
please visit or contact Professors Tapio
Schneider or Andrew Stuart at

Applications with a curriculum vitae, a one-page statement of research
interests, and three letters of recommendation should be submitted at Review of
applications will begin August 9 and will continue until the positions
are filled.

From: Fran Moshiri
Date: August 03, 2018
Subject: Postdoc Instructorship Position, Rice Univ

Department of Computational and Applied Mathematics (CAAM)
Rice University

The Department of Computational and Applied Mathematics
( at Rice University in Houston, Texas, invites
applications for a Pfeiffer Postdoctoral Instructorship. All
postdoctoral instructors in the Department are appointed for two
academic years, with possible extension for a third year. The term of
appointment may begin at any time after July 1, 2019. Candidates must
have a recent PhD in Applied Mathematics and have demonstrated
potential for excellence in both research and teaching. This
opportunity is restricted to U.S. Citizens and Permanent Residents

Instructors teach one lecture course each semester, and conduct
research in collaboration with a faculty mentor. The Pfeiffer
Instructorships honor Professor Paul Pfeiffer (1917-2012), a founding
member of the department.

Interdisciplinary work is a fundamental aspect of the Department's
program. The research interests of the Pfeiffer Postdoctoral
Instructors should align with the research programs of the Department.

Applications consisting of a letter of application, current vita, and
descriptions of research plans and teaching experience should be
submitted via the website www.MathJobs.Org. In addition, candidates
should arrange for at least three letters of recommendations, which
may be submitted on the same website.

To receive full consideration the complete application must be
received by December 15, 2018, but the committee will continue to
accept applications until the position is filled.

Equal Opportunity Employer: Females/Minorities/Veterans/
Disabled/Sexual Orientation/ Gender Identity.

From: Oliver Ernst
Date: August 02, 2018
Subject: PostDoc/PhD Position, UQ for Groundwater Flow/Transport, TU Chemnitz

The Numerical Analysis Group of the TU Chemnitz Department of
Mathematics has an immediate opening in the EU-funded Junior Research
Group "NitraMon" as a full-time research associate (German pay scale
E13 TV-L) at the doctoral or postdoctoral level. The position is
restricted to applicants who received their PhD degree no less than 4
years before July 1, 2018 and is funded through June 30, 2021.

NitraMon is a multidisciplinary research project to develop a sensor
network for the continuous monitoring of anthropogenic nitrate
contamination in soil and groundwater in cooperation with teams from
electrical engineering and chemistry at the TU Chemnitz. The
successful candidate is expected to contribute to the collaborative
project's success in the following development tasks: finite element
simulation of groundwater flow and transport in saturated and
unsaturated zones; parameter identification of nitrate concentration
based in spatiotemporal observations with quantified uncertainty;
optimal sensor placement based on methods of optimal experimental

Eligibility: Applicants should have a master's or PhD degree in
mathematics or alternatively a PhD degree in a closely related field
relevant for conducting the research tasks outlined above as well as
experience in the development of numerical software. Excellent
programming skills are essential.

Application is open until August 17, 2018. Further details can be
found at .

From: Pierre Kerfriden
Date: August 05, 2018
Subject: Early Stage Researcher Position, Cardiff Univ

Cardiff University invites applications for an Early Stage Researcher
position (Doctoral Candidate) as part of the Rapid Biomechanics and
Simulation for Personalised Clinical Design (RAINBOW) MCSA European
Training Network. RAINBOW is funded under the European Union's Horizon
2020 research and innovation programme. The post holder will undertake
research on "Meta Modelling for Soft Tissue Contact and Cutting
Simulation" leading to a PhD degree award. The post holder will
develop numerical methods to simulate the deformations of soft-tissues
in the context of computer-aided surgery. In particular, he/she will
contribute to bridging the gap between advanced 3D imaging techniques
and physics-based computer simulations in order to improve current
capabilities in the area of computer-aided diagnostic and surgical
planning. A thorough knowledge of numerical methods is essential.

More information and application pages

Application Deadline: 16.08.2018

From: Edward B. Saff
Date: July 31, 2018
Subject: Free Access, CA Special Issues on Approximation and Statistical Physics

Free access is available until September 25, 2018 to Parts I and II of
Constructive Approximation's Special Issue on Approximation and
Statistical Physics (Vol. 47, No. 1, 2018 and Vol. 48, No. 1,
2018). The free access is available by scrolling to the bottom of the
Springer Constructive Approximation home page,

From: Saul Buitrago
Date: August 04, 2018
Subject: Contents, Bulletin of Computational Applied Mathematics, 6 (1)

Table of Contents
Bulletin of Computational Applied Mathematics, Vol. 6, No. 1

Transitivity of parametric family of cardinality-based fuzzy
similarity measures using Lukasiewicz t-norm, M. Aslam Javed,
S. Ashraf, S.M. Husnine

New results on the stability, integrability and boundedness in
Volterra integro-differential equations, C. Tunc, O. Tunc

Fundamentals of soft category theory, S.K. Sardar, S. Gupta, B. Davvaz

A new flexible extension of the generalized half-normal lifetime model
with characterizations and regression modeling, E. Altun, H.M. Yousof,
G.G. Hamedani

On the Modified Methods for Irreducible Linear Systems with
L-Matrices, S.A. Edalatpanah

From: Yonghui Yu
Date: August 01, 2018
Subject: Contents, Computational Mathematics, 36 (4)

Journal of Computational Mathematics, Volume 36 (2018), Issue 4

Table of Contents

A Weak Galerkin Finite Element Method for the Linear Elasticity
Problem in Mixed Form, Ruishu Wang and Ran Zhang

Block-centered Finite Difference Methods for Non-Fickian Flow in
Porous Media, Xiaoli Li and Hongxing Rui

High Order Stable Multi-domain Hybrid RKDG and WENO-FD Methods, Fan
Zhang, Tiegang Liu and Jian Cheng

Quasi-Newton Waveform Relaxation Based on Energy Method, Yaolin Jiang
and Zhen Miao

Anomalous Diffusion in Finite Length Fingers Comb Frame with the
Effects of Time and Space Riesz Fractional Cattaneo-Christov Flux and
Poiseuille Flow, Lin Liu, Liancun Zheng, Fawang Liu and Xinxin Zhang

A Modified Preconditioner for Parameterized Inexact Uzawa Method for
Indefinite Saddle Point Problems, Xinhui Shao, Chen Li, Tie Zhang and
Changjun Li

High Order Compact Multisymplectic Scheme for Coupled Nonlinear
Schrodinger-KdV Equations, Lan Wang and Yushun Wang

A New Boundary Condition for Rate-type Non-Newtonian Diffusive Models
and the Stable Mac Scheme, Kun Li, Youngju Lee and Christina Starkey

From: Irena Lasiecka IL2V@VIRGINIA.EDU
Date: August 03, 2018
Subject: Contents, EECT Evolution Equations and Control Theory, 7 (3)

The new issue vol 7 Number 3 of Evolution Equations & Control
Theory (EECT) is now published online.

Energy decay for the damped wave equation on an unbounded network,
Rachid Assel and Mohamed Ghazel

Rate of convergence of inertial gradient dynamics with time-dependent
viscous damping coefficient, Hedy Attouch, Alexandre Cabot, Zaki
Chbani and Hassan Riahi

Existence and continuous-discrete asymptotic behaviour for Tikhonov-
like dynamical equilibrium systems, Aicha Balhag, Zaki Chbani and
Hassan Riahi

Exact boundary controllability for the Boussinesq equation with
variable coefficients, Jamel Ben Amara and Hedi Bouzidi

Control problems and invariant subspaces for sabra shell model of
turbulence, Tania Biswas and Sheetal Dharmatti

Null controllability of the incompressible Stokes equations in a 2-D
channel using normal boundary control, Shirshendu Chowdhury, Debanjana
Mitra and Michael Renardy

Carleman estimates for forward and backward stochastic fourth order
Schrodinger equations and their applications, Peng Gao

Optimal control of second order delay-discrete and delay-differential
inclusions with state constraints, Elimhan N. Mahmudov

From: Charlotte Parr
Date: August 02, 2018
Subject: Contents, IMA Journal of Numerical Analysis, 38 (3)

Contents, IMA Journal of Numerical Analysis, 38(3)
IMA Journal of Numerical Analysis
Links to all articles in this issue are available online at:

Construction and implementation of asymptotic expansions for
Laguerre-type orthogonal polynomials, Daan Huybrechs; Peter Opsomer

A finite element method for quantum graphs, Mario Arioli; Michele

On a residual-based a posteriori error estimator for the total error,
Jan Papez; Zdenek Strakos

New algorithms for approximating \Phi-functions and their condition
numbers for large sparse matrices, Gang Wu; Lu Zhang

Best polynomial approximation on the unit ball, Miguel A Pinar; Yuan

Error analysis of a variational multiscale stabilization for
convection -dominated diffusion equations in two dimensions, Guanglian
Li; Daniel Peterseim; Mira Schedensack

Improved L2 estimate for gradient schemes and super-convergence of the
TPFA finite volume scheme, Jerome Droniou; Neela Nataraj

Avoiding order reduction when integrating linear initial boundary
value problems with exponential splitting methods, I Alonso-Mallo; B
Cano; N Reguera

A splitting method for deep water with bathymetry, Afaf Bouharguane;
Benjamin Melinand

Analysis of a high-order unfitted finite element method for elliptic
interface problems, Christoph Lehrenfeld; Arnold Reusken

A variational H (div) finite-element discretization approach for
perfect incompressible fluids, Andrea Natale; Colin J Cotter

Generalizations of SIP methods to systems with p-structure, T Malkmus;
M Ruzicka; S Eckstein; I Toulopoulos

Error analysis of an augmented mixed method for the Navier-Stokes
problem with mixed boundary conditions, Jessika Camano; Ricardo
Oyarzua; Ricardo Ruiz-Baier; Giordano Tierra

Discrete fourth-order Sturm-Liouville problems, Matania Ben-Artzi;
Jean-Pierre Croisille; Dalia Fishelov; Ron Katzir

Adaptive time-stepping strategies for nonlinear stochastic systems,
Conall Kelly; Gabriel J Lord

Unbiased 'walk-on-spheres' Monte Carlo methods for the fractional
Laplacian, Andreas E Kyprianou; Ana Osojnik; Tony Shardlow

Complexity and global rates of trust-region methods based on
probabilistic models, Serge Gratton; Clement W Royer; Luis N Vicente;
Zaikun Zhang

Erratum to: "Computation of pseudospectral abscissa for large-scale
nonlinear eigenvalue problems", Karl Meerbergen; Emre Mengi; Wim
Michiels; Roel Van Beeumen

End of Digest