Pure Σ2-elementarity beyond the core
نویسندگان
چکیده
We display the entire structure R2 coding Σ1- and Σ2-elementarity on ordinals. This will enable analysis of pure Σ3-elementary substructures.
منابع مشابه
Elementarity and Dimensions
We give an alternative proof of Fedorchuk’s recent result that dimX6DgX for compact Hausdorff spaces X. We use the Löwenheim-Skolem theorem to reduce the problem to the metric case.
متن کاملBeyond Numerics: the Existence of Pure Filtrations
A recent result of Boij-Söderberg and Eisenbud-Schreyer proves that the Betti diagram of any graded module decomposes as a positive rational linear combination of pure diagrams. We consider the follow-up question of whether this numerical decomposition ever corresponds to an actual filtration of the minimal free resolution itself. Our main result is an affirmative answer to this question in man...
متن کاملStimulus-specific adaptation beyond pure tones.
Detecting rare and surprising events is a useful strategy for sensory -systems. In the human auditory system, deviance detection is indexed by an important component of the auditory event-related potentials, the mismatch negativity (MMN). Responses of single neurons in the inferior colliculus, medial geniculate body, and auditory cortex of mammals (cats, rats, and mice) show responses that shar...
متن کاملOral cavity examination: beyond the core curriculum?
There has been little improvement in the survival of patients with oral cancer despite advances in treatment, and late presentation of the disease is one reason for this poor outcome. Research and experience tell us that tuition in medical schools about examination of the oral cavity is poor. We aimed to ascertain the opinions and experience of students regarding this in our institution by diss...
متن کاملIdentification of the gene that codes for the σ2 receptor.
The σ2 receptor is an enigmatic protein that has attracted significant attention because of its involvement in diseases as diverse as cancer and neurological disorders. Unlike virtually all other receptors of medical interest, it has eluded molecular cloning since its discovery, and the gene that codes for the receptor remains unknown, precluding the use of modern biological methods to study it...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annals of Pure and Applied Logic
سال: 2021
ISSN: ['0168-0072', '1873-2461']
DOI: https://doi.org/10.1016/j.apal.2021.103001