Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complete quadrics: Schubert calculus for Gaussian models and
  semidefinite programming   We establish connections between: the maximum likelihood degree (ML-degree)
for linear concentration models, the algebraic degree of semidefinite
programming (SDP), and Schubert calculus for complete quadrics. We prove a
conjecture by Sturmfels and Uhler on the polynomiality of the ML-degree. We
also prove a conjecture by Nie, Ranestad and Sturmfels providing an explicit
formula for the degree of SDP. The interactions between the three fields shed
new light on the asymptotic behaviour of enumerative invariants for the variety
of complete quadrics. We also extend these results to spaces of general
matrices and of skew-symmetric matrices.

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The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org