We improve the range of exponents for the restriction problem for the 3-d paraboloid over finite fields. The key new ingredient is a variant of the Bourgain-Katz-Tao finite field incidence theorem derived from sum-product estimates. In prime order fields, we give an explicit relationship between the exponent in this incidence theorem and restriction estimates for the paraboloid. (C) 2014 Elsevier Inc. All rights reserved.
机构:
Univ Buenos Aires, Dept Matemat, Fac Ciencias Exactas, RA-1428 Buenos Aires, DF, ArgentinaUniv Buenos Aires, Dept Matemat, Fac Ciencias Exactas, RA-1428 Buenos Aires, DF, Argentina
机构:
Wuhan Univ, Sch Math & Stat, Wuhan 430072, Hubei Province, Peoples R ChinaWuhan Univ, Sch Math & Stat, Wuhan 430072, Hubei Province, Peoples R China
Roche-Newton, Oliver
Rudnev, Misha
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Univ Bristol, Dept Math, Bristol BS8 1TW, Avon, EnglandWuhan Univ, Sch Math & Stat, Wuhan 430072, Hubei Province, Peoples R China
Rudnev, Misha
Shkredov, Ilya D.
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VA Steklov Math Inst, Div Algebra & Number Theory, Ul Gubkina 8, Moscow 119991, Russia
IITP RAS, Bolshoy Karetny Per 19, Moscow 127994, RussiaWuhan Univ, Sch Math & Stat, Wuhan 430072, Hubei Province, Peoples R China