Abstract
We construct some examples of ℍ-types Carnot groups related to quaternion numbers and study their geometric properties. We involve the Hamiltonian formalism to obtain the equations of geodesics and calculate the cardinality of geodesics joining two different points on these groups. We prove Kepler’s law and give a nice geometric interpretation of the length of geodesies.
Similar content being viewed by others
References
Beals, R., Gaveau, B., and Greiner, P. C. Complex Hamiltonian mechanics and parametrices for subelliptic Lapla-cians, I, II, III,Bull. Sci. Math. 21, 1–3, 1–36, 97–149, 195–259, (1997).
Beals, R., Gaveau, B., and Greiner, P. C. Hamilton-Jacobi theory and the heat kernel on Heisenberg groups,J. Math. Pures Appl. 79(7), 633–689, (2000).
Beals, R., Gaveau, B., Greiner, P. C., and Vauthier, J. The Laguerre calculus on the Heisenberg group: II,Bull. Sci. Math. 110(3), 225–288, (1986).
Calin, O., Chang, D. C., and Greiner, P. C. On a step 2(k + 1) sub-Riemannian manifold,J. Geom. Anal. 14(1), 1–18, (2004).
Calin, O., Chang, D. C., and Greiner, P. C. Real and complex Hamiltonian mechanics on some subRiemannian manifolds,Asian J. Math. 18(1), 137–160, (2004).
Calin, O., Chang, D. C., and Greiner, P. C.Geometric Analysis on the Heisenberg Group and Its Generalizations, to be published in AMS/IP Series in Advanced Mathematics, International Press, Cambridge, Massachusetts, (2005).
Chow, W. L. Wei-Liang Über Systeme von linearen partiellen Differentialgleichungen erster Ordnung,Math. Ann. 117, 98–105, (1939).
Folland, G. B. and Stein, E. M. Estimates for the\(\bar \partial _b \) complex and analysis on the Heisenberg group,Comm. Pure Appl. Math. 27, 429–522, (1974).
Gaveau, B. Principe de moindre action, propagation de la chaleur et estimées sous elliptiques sur certains groupes nilpotents,Acta Math. 139(1–2), 95–153, (1977).
Hörmander, L. Hypoelliptic second order differential equations,Acta Math. 119, 147–171, (1967).
Kaplan, A. Fundamental solutions for a class of hypoelliptic PDE generated by composition of quadratics forms,Trans. Amer. Math. Soc. 258(1), 147–153, (1980).
Kaplan, A. On the geometry of groups of Heisenberg type,Bull. London Math. Soc. 15(1), 35–42, (1983).
Korányi, A. Geometric properties of Heisenberg-type groups,Adv. Math. 56(1), 28–38, (1985).
Mostow, G. D. Strong rigidity of locally symmetric spaces,Ann. of Math. Stud. 78, Princeton University Press, Princeton, NJ., University of Tokyo Press, Tokyo, (1973).
Pansu, P. Croissance des boules et des géodésiques fermées dans les nilvariétés, (French),Ergodic Theory Dynam. Systems 3(3), 415–445, (1983).
Reimann, H. M. Rigidity of ℍ-type groups,Math. Z. 237(4), 697–725, (2001).
Ricci, F. Commutative algebras of invariant functions on groups of Heisenberg type,J. London Math. Soc. 32(2), 256–271, (1985).
Strichartz, R. S. Sub-Riemannian geometry,J. Differential Geom. 24(2), 221–263, (1986); Correction, ibid.30, 595–596, (1989).
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Steven Krantz
Rights and permissions
About this article
Cite this article
Chang, DC., Markina, I. Geometric analysis on quaternion ℍ-type groups. J Geom Anal 16, 265–294 (2006). https://doi.org/10.1007/BF02922116
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02922116