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On groups having the prime graph as alternating and symmetric groups. / Gorshkov, Ilya; Staroletov, Alexey.
In: Communications in Algebra, Vol. 47, No. 9, 02.09.2019, p. 3905-3914.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On groups having the prime graph as alternating and symmetric groups
AU - Gorshkov, Ilya
AU - Staroletov, Alexey
N1 - Publisher Copyright: © 2019, © 2019 Taylor & Francis Group, LLC.
PY - 2019/9/2
Y1 - 2019/9/2
N2 - The prime graph Γ(G) of a finite group G is the graph whose vertex set is the set of prime divisors of |G| and in which two distinct vertices r and s are adjacent if and only if there exists an element of G of order rs. Let A n (S n ) denote the alternating (symmetric) group of degree n. We prove that if G is a finite group with Γ(G)=Γ(A n ) or Γ(G)=Γ(S n ), where n≥19, then there exists a normal subgroup K of G and an integer t such that A t ≤G(K)≤S t and |K| is divisible by at most one prime greater than n/2.
AB - The prime graph Γ(G) of a finite group G is the graph whose vertex set is the set of prime divisors of |G| and in which two distinct vertices r and s are adjacent if and only if there exists an element of G of order rs. Let A n (S n ) denote the alternating (symmetric) group of degree n. We prove that if G is a finite group with Γ(G)=Γ(A n ) or Γ(G)=Γ(S n ), where n≥19, then there exists a normal subgroup K of G and an integer t such that A t ≤G(K)≤S t and |K| is divisible by at most one prime greater than n/2.
KW - alternating groups
KW - finite simple groups
KW - Prime graph
KW - symmetric groups
KW - FINITE
KW - RECOGNITION
KW - RECOGNIZABILITY
UR - http://www.scopus.com/inward/record.url?scp=85063520547&partnerID=8YFLogxK
U2 - 10.1080/00927872.2019.1572167
DO - 10.1080/00927872.2019.1572167
M3 - Article
AN - SCOPUS:85063520547
VL - 47
SP - 3905
EP - 3914
JO - Communications in Algebra
JF - Communications in Algebra
SN - 0092-7872
IS - 9
ER -
ID: 19039664