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Author(s):  
Oleg V. Demchenko ◽  
◽  
Sergei V. Vostokov ◽  

Generalized Honda formal groups are a new class of formal groups that in particular describes the formal groups over the ring of integers of local fields weakly ramified over Qp. It is the next class in the chain the multiplicative formal group — Lubin — Tate formal groups — Honda formal groups. Lubin — Tate formal groups are defined by distinguished endomorphisms [π]F , Honda formal groups possess distinguished omomorphisms that factor through [π]F and in the present paper we prove that for generalized Honda formal groups it is compositions of distinguished homomorphisms that factor through [π]F . As an application of this fact, some properties of πn-torsion points of generalized Honda formal groups are studied.


2020 ◽  
Vol 195 (3) ◽  
pp. 305-312
Author(s):  
Laurent Berger
Keyword(s):  

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S390-S390
Author(s):  
Judith Robertson R Phillips ◽  
Katie E Cherry

Abstract With the increasing occurrences of disasters throughout the world, researchers, communities, and organizations have become interested in how the use of social networks during and after a disaster can ease the psychological recovery of older adults who are affected by traumatic disaster events such as hurricanes and wildfires. This symposium will focus on the power of social networks and highlight the importance of preparedness, informal and formal groups, and interventions to assist recovery of older adults. First, Dr. Judith Phillips will present data on how informal and formal social network groups affected the psychological well-being of older adults who experienced exposure to multiple wildfires. Second, Dr. Denise Eldemire-Shearer will address how both formal and informal social network groups in Jamaica are informed and mobilized to provide support to older adults on the island during hurricanes and other water-related disasters. Third, Dr. Lisa Brown will introduce the Skills for Psychological Recovery intervention and provide an overview and modifications needed when using with older adults; she will also demonstrate an exercise. Fourth, Dr. Debra Dobbs will present themes examining the role of community engagement in hurricane preparedness which were gathered from focus groups and interviews with assisted living administrators in Florida. Lastly, Dr. Mary Helen McSweeney-Feld will address how voluntary organizations active during disasters aid older adults with disaster relief efforts. Together these presenters will provide evidence of the power of various social networks that will lessen the vulnerability of older adults after disasters.


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S390-S390
Author(s):  
Judith Robertson R Phillips

Abstract Having the support of a social network can play an important role towards psychological well-being for those impacted by a disaster. The purpose of this study was to investigate how type (emotional, tangible, informational) and source (family, friends, others) of social support during three Southern California wildfires impacted the psychological well-being of three victim-groups (based on severity of exposure) of community-residing adults (N= 203; meanage = 63.4 years; range 50-94 years) who responded to surveys about their experiences during the 2007, 2014, and 2017 northern San Diego County, CA wildfires. Analyses revealed that emotional social support from friends and neighbors was the most frequently received type and source of support, especially for the primary victim-group, those with residential loss. All victim-groups exhibited healthy psychological well-being. Discussion will focus on how informal groups differed and were similar to formal groups in providing social support during a disaster to encourage psychological recovery.


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