# American Institute of Mathematical Sciences

2012, 19: 86-96. doi: 10.3934/era.2012.19.86

## The pentagram map in higher dimensions and KdV flows

 1 School of Mathematics, Institute for Advanced Study, Princeton, NJ 08540, USA and Department of Mathematics,, University of Toronto, Toronto, ON M5S 2E4, Canada 2 Department of Mathematics, University of Toronto, Toronto, ON M5S 2E4, Canada

Published  September 2012

We extend the definition of the pentagram map from 2D to higher dimensions and describe its integrability properties for both closed and twisted polygons by presenting its Lax form. The corresponding continuous limit of the pentagram map in dimension $d$ is shown to be the $(2,d+1)$-equation of the KdV hierarchy, generalizing the Boussinesq equation in 2D.
Citation: Boris Khesin, Fedor Soloviev. The pentagram map in higher dimensions and KdV flows. Electronic Research Announcements, 2012, 19: 86-96. doi: 10.3934/era.2012.19.86
##### References:
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##### References:
 [1] M. Gekhtman, M. Shapiro, S. Tabachnikov and A. Vainshtein, Higher pentagram maps, weighted directed networks, and cluster dynamics,, Electron. Res. Announc. Math. Sci., 19 (2012), 1.   Google Scholar [2] B. Khesin and F. Soloviev, Integrability of higher pentagram maps,, (2012); , (2012).   Google Scholar [3] I. M. Krichever and D. H. Phong, On the integrable geometry of soliton equations and N=2 supersymmetric gauge theories,, J. Diff. Geom., 45 (1997), 349.   Google Scholar [4] I. M. Krichever and D. H. Phong, Symplectic forms in the theory of solitons,, in, (1998), 239.   Google Scholar [5] G. Marí Beffa, On generalizations of the pentagram map: Discretizations of AGD flows,, (2011); , (2011).   Google Scholar [6] V. Ovsienko, R. Schwartz and S. Tabachnikov, The pentagram map: A discrete integrable system,, Comm. Math. Phys., 299 (2010), 409.  doi: 10.1007/s00220-010-1075-y.  Google Scholar [7] V. Ovsienko, R. Schwartz and S. Tabachnikov, Liouville-Arnold integrability of the pentagram map on closed polygons,, (2011); , (2011).   Google Scholar [8] R. Schwartz, The pentagram map,, Experiment. Math., 1 (1992), 71.   Google Scholar [9] F. Soloviev, Integrability of the pentagram map,, submitted to Duke Mathematical Journal, (2011).   Google Scholar
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