I will start with a short review of the classical restriction theorem for the sphere and Strichartz estimates for the wave equation. I then plan to give a detailed presentation of their recent generalizations in the form of “Bilinear Estimates”. In addition to the theory, which is now quite well developed, I plan to discuss a more general point of view concerning the theory. By investigating simple examples I will derive necessary conditions for such estimates to be true. I also plan to discuss the relevance of these estimates to nonlinear wave equations.
@article{JEDP_1999____A20_0, author = {Klainerman, Sergi\`u and Foschi, Damiano}, title = {On bilinear estimates for wave equations}, journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {20}, pages = {1--17}, publisher = {Universit\'e de Nantes}, year = {1999}, zbl = {01810593}, language = {en}, url = {http://archive.numdam.org/item/JEDP_1999____A20_0/} }
Klainerman, Sergiù; Foschi, Damiano. On bilinear estimates for wave equations. Journées équations aux dérivées partielles (1999), article no. 20, 17 p. http://archive.numdam.org/item/JEDP_1999____A20_0/
[1] Bilinear space-time estimates for homogeneous wave equations, preprint (1998).
and ,[2] Generalized Strichartz inequalities for the wave equation, J. Funct. Anal. 133 (1995), no. 1, 50-68. | MR | Zbl
and ,[3] Weak and yet weaker solutions of semilinear wave equations, Comm. Partial Differential Equations 19 (1994), no. 9-10, 1629-1676. | MR | Zbl
,[4] Endpoint Strichartz estimates, American Journal of Mathematics (1998), to appear. | Zbl
and ,[5] Space-time estimates for null forms and the local existence theorem, Comm. Pure Appl. Math. 46 (1993), no. 9, 1221-1268. | MR | Zbl
and ,[6] Finite energy solutions of the Yang-Mills equations in ℝ3+1, Annals of Mathematics 142 (1995), 39-119. | Zbl
and ,[7] Estimates for null forms and the spaces Hs, δ, Int. Math. Res. Not. (1996), no. 17, 853-865. | Zbl
and ,[8] Remark on the optimal regularity for equations of wave maps type, Comm. Partial Differential Equations 22 (1997), no. 5-6, 901-918. | MR | Zbl
and ,[9] On the optimal regularity for Yang-Mills equations in ℝ4+1, preprint (1998).
and ,[10] On existence and scattering with minimal regularity for semilinear wave equations, J. Funct. Anal. 130 (1995), no. 2, 357-426. | MR | Zbl
and ,[11] Nonlinear small data scattering for the wave and Klein-Gordon equation, Math. Z. 185 (1984), no. 2, 261-270. | EuDML | MR | Zbl
,[12] Restrictions of Fourier transforms to quadratic surfaces and decay of solutions of wave equations, Duke Math. J. 44 (1977), no. 3, 705-714. | MR | Zbl
,[13] Low regularity semi-linear wave equations, preprint (1998).
,[14] Local and global results for wave maps i, to appear, Comm. PDE (1998). | Zbl
,