Lab page: http://www.dam.brown.edu/people/sandsted/
I am a Professor of Applied Mathematics, and currently a Royce Family Professor of Teaching Excellence, at Brown University. My research focuses on nonlinear waves and pattern formation, and more generally on dynamical systems, data science, and applications to biological systems (eg stripe formation on zebrafish and mRNA localization in frog oocytes).
I received my undergraduate degree from the University of Heidelberg and my PhD from the University in Stuttgart. Before coming to Brown in 2008, I worked at The Ohio State University and the University of Surrey in England. I received an Alfred P Sloan Research Fellowship, the SIAM JD Crawford Prize, a Royal Society Wolfson Research Merit Award, and the Elsevier Jack Hale Award. I am also the recipient of the Philip Bray Award for Teaching Excellence and the Graduate School Faculty Award for Advising and Mentoring.
At Brown, I served as department chair and as vice chair of the Research Advisory Board, and I am currently a member of the executive committee of Brown's Data Science Initiative, the Tenure, Promotions, and Appointments Committee, and the advisory board of the Sheridan Center. I am one of the founding principal investigators of the NSF grant that established Brown's Institute for Computational and Experimental Research in Mathematics (ICERM).
Slivinski, Laura, Spiller, Elaine, Apte, Amit, Sandstede, Björn A Hybrid Particle–Ensemble Kalman Filter for Lagrangian Data Assimilation. Mon. Wea. Rev.. 2015; 143 (1) : 195211. 
Guckenheimer, John, Krauskopf, Bernd, Osinga, Hinke M., Sandstede, Björn Invariant manifolds and global bifurcations. Chaos: An Interdisciplinary Journal of Nonlinear Science. 2015; 25 (9) : 097604. 
Volkening, Alexandria, Sandstede, Björn Modelling stripe formation in zebrafish: an agentbased approach. Journal of The Royal Society Interface. 2015; 12 (112) : 20150812. 
van Heijster, Peter, Sandstede, Björn Bifurcations to travelling planar spots in a threecomponent FitzHugh–Nagumo system. Physica D: Nonlinear Phenomena. 2014; 275 : 1934. 
Carter, Paul, Christiansen, Peter Leth, Gaididei, Yuri B., Gorria, Carlos, Sandstede, Björn, Sørensen, Mads Peter, Starke, Jens Multijam Solutions in Traffic Models with VelocityDependent Driver Strategies. SIAM J. Appl. Math.. 2014; 74 (6) : 18951918. 
Beck, Margaret, Nguyen, Toan T, Sandstede, Björn, Zumbrun, Kevin Nonlinear stability of source defects in the complex Ginzburg–Landau equation. nonlinearity. 2014; 27 (4) : 739786. 
McQuighan, Kelly, Sandstede, Björn Oscillons in the planar Ginzburg–Landau equation with 2 : 1 forcing. nonlinearity. 2014; 27 (12) : 30733116. 
Makrides, Elizabeth, Sandstede, Björn Predicting the bifurcation structure of localized snaking patterns. Physica D: Nonlinear Phenomena. 2014; 268 : 5978. 
Sandstede, Björn Homoclinic Flip Bifurcations in Conservative Reversible Systems. Recent Trends in Dynamical Systems. 2013; : 107123. 
McCalla, S. G., Sandstede, B. Spots in the SwiftHohenberg Equation. SIAM Journal on Applied Dynamical Systems. 2013; 12 (2) : 831877. 
Sandstede, Björn, Scheel, Arnd, Schneider, Guido, Uecker, Hannes Diffusive mixing of periodic wave trains in reaction–diffusion systems. Journal of Differential Equations. 2012; 252 (5) : 35413574. 
Beyn, WolfJürgen, Fiedler, Bernold, Sandstede, Björn Dynamics of Patterns. Oberwolfach Rep.. 2012; 9 (4) : 35493633. 
Sandstede, Björn, Xu, Yancong Snakes and isolas in nonreversible conservative systems. Dynamical Systems. 2012; 27 (3) : 317329. 
Hupkes, H. J., Sandstede, B. Stability of pulse solutions for the discrete FitzHugh–Nagumo system. Trans. Amer. Math. Soc.. 2012; 365 (1) : 251301. 
Beck, Margaret, Nguyen, Toan, Sandstede, Björn, Zumbrun, Kevin Towards nonlinear stability of sources via a modified Burgers equation. Physica D: Nonlinear Phenomena. 2012; 241 (4) : 382392. 
Derks, Gianne, Maad Sasane, Sara, Sandstede, Björn Perturbations of embedded eigenvalues for the planar bilaplacian. Journal of Functional Analysis. 2011; 260 (2) : 340398. 
van Heijster, Peter, Sandstede, Björn Planar Radial Spots in a ThreeComponent FitzHugh–Nagumo System. Journal of Nonlinear Science. 2011; 21 (5) : 705745. 
Hupkes, H. J., Pelinovsky, D., Sandstede, B. Propagation failure in the discrete Nagumo equation. Proceedings of the American Mathematical Society. 2011; 139 (10) : 35373537. 
Oh, Myunghyun, Sandstede, Björn Evans functions for periodic waves on infinite cylindrical domains. Journal of Differential Equations. 2010; 248 (3) : 544555. 
Knobloch, Jürgen, Lloyd, David J. B., Sandstede, Björn, Wagenknecht, Thomas Isolas of 2Pulse Solutions in Homoclinic Snaking Scenarios. J Dyn Diff Equat. 2010; 23 (1) : 93114. 
Beck, Margaret, Hupkes, Hermen Jan, Sandstede, Björn, Zumbrun, Kevin Nonlinear Stability of Semidiscrete Shocks for TwoSided Schemes. SIAM Journal on Mathematical Analysis. 2010; 42 (2) : 857903. 
McCalla, Scott, Sandstede, Björn Snaking of radial solutions of the multidimensional Swift–Hohenberg equation: A numerical study. Physica D: Nonlinear Phenomena. 2010; 239 (16) : 15811592. 
Obeid, D., Kosterlitz, J. M., Sandstede, B. State selection in the noisy stabilized KuramotoSivashinsky equation. Physical Review E. 2010; 81 (6) 
Avitabile, Daniele, Lloyd, David J. B., Burke, John, Knobloch, Edgar, Sandstede, Björn To Snake or Not to Snake in the Planar Swift–Hohenberg Equation. SIAM Journal on Applied Dynamical Systems. 2010; 9 (3) : 704733. 
Hupkes, Hermen Jan, Sandstede, Björn Traveling Pulse Solutions for the Discrete FitzHugh–Nagumo System. SIAM Journal on Applied Dynamical Systems. 2010; 9 (3) : 827882. 
Bale, Brandon G., Kutz, J. Nathan, Sandstede, Bjorn

Manukian, Vahagn, Costanzino, Nicola, Jones, Christopher K. R. T., Sandstede, Björn Existence of MultiPulses of the Regularized ShortPulse and Ostrovsky Equations. J Dyn Diff Equat. 2009; 21 (4) : 607622. 
Lloyd, David, Sandstede, Björn Localized radial solutions of the Swift–Hohenberg equation. nonlinearity. 2009; 22 (2) : 485524. 
Hupkes, Hermen Jan, Sandstede, Björn Modulated Wave Trains in Lattice Differential Systems. J Dyn Diff Equat. 2009; 21 (3) : 417485. 
Beck, Margaret, Ghazaryan, Anna, Sandstede, Björn Nonlinear convective stability of travelling fronts near Turing and Hopf instabilities. Journal of Differential Equations. 2009; 246 (11) : 43714390. 
Beck, Margaret, Sandstede, Björn, Zumbrun, Kevin Nonlinear Stability of TimePeriodic Viscous Shocks. Arch Rational Mech Anal. 2009; 196 (3) : 10111076. 
Bale, Brandon G., Kutz, J. Nathan, Sandstede, BjÖrn Optimizing Waveguide Array ModeLocking for HighPower Fiber Lasers. IEEE J. Select. Topics Quantum Electron.. 2009; 15 (1) : 220231. 
Bale, B. G., Kutz, J. N., Sandstede, B. Optimizing waveguide array modelocking for highpower fiber lasers. CLEO/Europe  EQEC 2009  European Conference on Lasers and ElectroOptics and the European Quantum Electronics Conference. 2009; 
Manukian, Vahagn, Sandstede, Björn SIAM Journal on Mathematical Analysis. Journal of Differential Equations. 2009; 247 (6) : 18661898. 
Beck, Margaret, Knobloch, Jürgen, Lloyd, David J. B., Sandstede, Björn, Wagenknecht, Thomas Snakes, Ladders, and Isolas of Localized Patterns. SIAM Journal on Mathematical Analysis. 2009; 41 (3) : 936972. 
Doelman, Arjen, Sandstede, Björn, Scheel, Arnd, Schneider, Guido The dynamics of modulated wave trains. Memoirs of the American Mathematical Society. 2009; 199 (934) : 00. 
Beyn, WolfJürgen, Fiedler, Bernold, Sandstede, Björn Dynamics of Patterns. Oberwolfach Rep.. 2008; : 32013271. 
Sandstede, Björn, Scheel, Arnd Hopf Bifurcation From Viscous Shock Waves. SIAM Journal on Mathematical Analysis. 2008; 39 (6) : 20332052. 
Lloyd, David J. B., Sandstede, Björn, Avitabile, Daniele, Champneys, Alan R. Localized Hexagon Patterns of the Planar Swift–Hohenberg Equation. SIAM Journal on Applied Dynamical Systems. 2008; 7 (3) : 10491100. 
Sandstede, Björn, Maad, Sara, Derks, Gianne Perturbations of embedded eigenvalues for the bilaplacian on a cylinder. Discrete and Continuous Dynamical Systems. 2008; 21 (3) : 801821. 
Kutz, J. Nathan, Sandstede, Björn Theory of passive harmonic modelocking using waveguide arrays. Opt. Express. 2008; 16 (2) : 636. 
Rademacher, Jens D.M., Sandstede, Björn, Scheel, Arnd Computing absolute and essential spectra using continuation. Physica D: Nonlinear Phenomena. 2007; 229 (2) : 166183. 
Kutz, J. Nathan, Sandstede, Bjorn Dynamics of Passive Harmonic ModeLocking. Nonlinear Photonics. 2007; 
SANDSTEDE, BJÖRN EVANS FUNCTIONS AND NONLINEAR STABILITY OF TRAVELING WAVES IN NEURONAL NETWORK MODELS. International Journal of Bifurcation and Chaos. 2007; 17 (08) : 26932704. 
Ghazaryan, Anna, Sandstede, Björn Nonlinear Convective Instability of Turing‐Unstable Fronts near Onset: A Case Study. SIAM Journal on Applied Dynamical Systems. 2007; 6 (2) : 319347. 
Sandstede, Björn, Scheel, Arnd PeriodDoubling of Spiral Waves and Defects. SIAM Journal on Applied Dynamical Systems. 2007; 6 (2) : 494547. 
Scheel, Arnd, Sandstede, Björn Relative Morse indices, Fredholm indices, and group velocities. Discrete and Continuous Dynamical Systems. 2007; 20 (1) : 139158. 
Sandstede, Björn, Scheel, Arnd Curvature effects on spiral spectra: Generation of point eigenvalues near branch points. Physical Review E. 2006; 73 (1) 
Humpherys, Jeffrey, Sandstede, Björn, Zumbrun, Kevin Efficient Computation of Analytic Bases in Evans Function Analysis of Large Systems. Numer. Math.. 2006; 103 (4) : 631642. 
Sandstede, Björn, Scheel, Arnd Basin boundaries and bifurcations near convective instabilities: a case study. Journal of Differential Equations. 2005; 208 (1) : 176193. 
Kapitula, Todd, Kevrekidis, Panayotis G., Sandstede, Björn Counting eigenvalues via the Krein signature in infinitedimensional Hamiltonian systems. Physica D: Nonlinear Phenomena. 2005; 201 (12) : 199201. 
Samaey, Giovanni, Sandstede, Björn Determining stability of pulses for partial differential equations with time delays. Dynamical Systems. 2005; 20 (2) : 201222. 
Groves, M.D., Sandstede, B. A Plethora of ThreeDimensional Periodic Travelling GravityCapillary Water Waves with Multipulse Transverse Profiles. Journal of Nonlinear Science. 2004; 14 (3) 
Groves, M. D., Sandstede, B. A plethora of threedimensional periodic travelling gravitycapillary water waves with multipulse transverse profiles. Journal of Nonlinear Science. 2004; 14 (3) : 297340. 
Sandstede, Björn, Scheel, Arnd Absolute instabilities of standing pulses. nonlinearity. 2004; 18 (1) : 331378. 
Kapitula, Todd, Kevrekidis, Panayotis G., Sandstede, Björn Counting eigenvalues via the Krein signature in infinitedimensional Hamiltonian systems. Physica D: Nonlinear Phenomena. 2004; 195 (34) : 263282. 
Sandstede, Björn, Scheel, Arnd Defects in Oscillatory Media: Toward a Classification. SIAM Journal on Applied Dynamical Systems. 2004; 3 (1) : 168. 
Kapitula, Todd, Sandstede, Björn Eigenvalues and resonances using the Evans function. Discrete and Continuous Dynamical Systems. 2004; 10 (4) : 857869. 
Sandstede, Björn, Scheel, Arnd Evans function and blowup methods in critical eigenvalue problems. Discrete and Continuous Dynamical Systems. 2004; 10 (4) : 941964. 
Kapitula, Todd, Kutz, Nathan, Sandstede, Bjorn The Evans function for nonlocal equations. Indiana Univ. Math. J.. 2004; 53 (4) : 10951126. 
Grenier, Emmanuel, Jones, Christopher K R T, Rousset, Frederic, Sandstede, Björn Viscous perturbations of marginally stable Euler flow and finitetime Melnikov theory. nonlinearity. 2004; 18 (2) : 465483. 
Sandstede, Bjorn, Scheel, Arnd Essential instabilities of fronts: bifurcation, and bifurcation failure. Dynamical Systems. 2001; 16 (1) : 128. 
The theoretical part of my research focuses on the formation and the dynamics of patterns and nonlinear waves: recent projects include the nonlinear stability of coherent structures, and I usually employ a range of analytical techniques, supplemented by numerical computations. I also work on applications in biology, climate, data assimilation, and traffic flow.
Recent grants include
Year  Degree  Institution 

1993  PhD  University of Stuttgart 
1990  MA  University of Heidelberg 
Name  Title 

Mowry, Kimberly  Robin Chemers Neustein Professor of Biomedicine, Professor of Biology, Chair of Molecular Biology, Cell Biology and Biochemistry 
Ramachandran, Sohini  Associate Professor of Biology, CoDirector of Graduate Studies for the Center of Computational Biology, Director of the Center for Computational Molecular Biology, Associate Professor of Computer Science 
I have taught a range of courses for undergraduate and graduate students and am very interested in involving undergraduates in my research. I have developed tutorial lectures and minicourses for graduatestudent training workshops, and my group runs an active weekly reading group series.
APMA 0350  Applied Ordinary Differential Equations 
APMA 0360  Methods of Applied Mathematics I, II 
APMA 1360  Topics in Chaotic Dynamics 
APMA 1910  Race and Gender in the Scientific Community 