Download e-book for kindle: Automorphic forms and Shimura varieties of PGSp (2) by Yuval Z. Flicker

By Yuval Z. Flicker

This publication furthers new and interesting advancements in experimental designs, multivariate research, biostatistics, version choice and similar topics. It positive factors articles contributed by way of many widespread and lively figures of their fields. those articles disguise a big selection of significant matters in smooth statistical thought, tools and their functions. special good points of the collections of articles are their coherence and strengthen in wisdom discoveries the world of automorphic representations is a traditional continuation of reports within the nineteenth and twentieth centuries on quantity idea and modular kinds. A guideline is a reciprocity legislation touching on limitless dimensional automorphic representations with finite dimensional Galois representations. easy family at the Galois facet mirror deep family members at the automorphic facet, known as "liftings." This in-depth e-book concentrates on an preliminary instance of the lifting, from a rank 2 symplectic crew PGSp(2) to PGL(4), reflecting the ordinary embedding of Sp(2, ) in SL(4, ). It develops the means of evaluating twisted and stabilized hint formulae. It offers a close class of the automorphic and admissible illustration of the rank symplectic PGSp(2) by way of a definition of packets and quasi-packets, utilizing personality kin and hint formulae identities. It additionally exhibits multiplicity one and stress theorems for the discrete spectrum. purposes comprise the learn of the decomposition of the cohomology of an linked Shimura type, thereby linking Galois representations to geometric automorphic representations. to place those leads to a normal context, the ebook concludes with a technical creation to Langlands' software within the region of automorphic representations. It features a facts of identified situations of Artin's conjecture.  Read more... Lifting autonomic different types of PGSp(2) to PGL(4) -- Zeta capabilities of Shimura forms of PGSp(2) -- historical past

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Extra resources for Automorphic forms and Shimura varieties of PGSp (2)

Example text

If T I , . . , 7rT are representations of GL(ni, F ) , and a of GSp(n - In/,F ) , F a local field, as in [ST] denote by 7r1 x . ' x 7rT x1 (T the representation I(7r1,. . , 7 r T , a ) of GSp(n, F ) normalizedly induced from the representation + P = mu H rl(g1) 8 . * * 8 XT(gT) 8 ~ ( h ) of P n = MnUn Here U, denotes the unipotent radical of P,. Note that a is a character if In1 = n (thus h E GSp(0, F ) = 3''). The induction is normalized by multiplying the inducing representation by the character SA"((p), where 6,(p) = I det(Ad(p)I Lie(U,))l.

In particular, we can define packets, describe their structure, establish multiplicity one theorem and rigidity theorem for packets of PGSp(2), specify which member in a packet or a quasi-packet is in the discrete spectrum, and we can also A-lift the nongeneric nontempered (at almost all places) packets to residual self-contragredient representations of PGL(4, A). Our liftings are proven in terms of all places, not only almost all places. In addition we establish the lifting X I from SO(4) to PGL(4), determine its fibers (that 2j.

An unramified representation is supported on P(l,l). It is a subquotient T H ( ~ I , ~ ofL ~a )fully induced I ~ ( p 1p2) , = p1p2 x p l / p 2 M p I 1 , where the pi are unramified characters of F X . An irreducible representation T is called essentially tempered if v% is tempered for some real number e , where (v"n)(g) = v(detg)%(g). The following is the Langlands classification for GSp(n, F ) . 2 PROPOSITION. Each representation ve17r1 x . . x uer7rr x u, where el 2 . . 2 e, > 0 , 7ri are irreducible square integrable representations of GL(ni, F ) , and a is an irreducible essentially tempered representation of GSp(n - In\,F ) , has a unique irreducible quotient: L(ve17rl,.

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