Judul: Analysis of Factors Affecting Islamic Banking Financing during the COVID-19 Pandemic
Abstrak: Penyebaran COVID-19 menjadi salah satu ancaman terbesar bagi ekonomi global dan pasar keuangan di dunia. Penelitian ini dilakukan untuk mengetahui pengaruh faktor-faktor yang memengaruhi pembiayaan bagi hasil selama pandemi COVID-19 terhadap perbankan syariah di Indonesia. Penelitian ini menggunakan sampel 13 Bank Umum Syariah dan 20 Unit Usaha Syariah serta periode waktu kuartal I-IV 2020. Alat analisis yang digunakan dalam penelitian ini adalah regresi data panel dengan pendekatan Random Effect Model (REM). Hasil penelitian menunjukkan bahwa DPK, NPF, FDR, ROA, PDB, inflasi dan jumlah uang beredar secara simultan berpengaruh terhadap pembiayaan bagi hasil. Untuk hasil estimasi secara parsial, variabel DPK, FDR, dan ROA berpengaruh signifikan dan positif terhadap pembiayaan bagi hasil. Sedangkan variabel NPF, PDB, inflasi, dan jumlah uang beredar tidak berpengaruh signifikan terhadap pembiayaan bagi hasil., The spread of COVID-19 is becoming one of the biggest threats to the global economy and financial markets in the world. This study is conducted to determine the effect of the factors that influence profit-sharing financing during the COVID-19 pandemic on Islamic banking in Indonesia. This study uses a sample of 13 Islamic Commercial Banks and 20 Sharia Business Units and the time period is quarter I-IV 2020. The analytical tool used in this study is panel data regression with the Random Effect Model (REM) approach. The results indicate that DPK, NPF, FDR, ROA, GDP, inflation and the money supply simultaneously has an effect on profit sharing financing. For the partial estimation results, the variables of DPK, FDR, and ROA have a significant and positive effect on profit sharing financing. While the variables of NPF, GDP, inflation, and the money supply have no significant effect on profit sharing financing.
Keyword: COVID-19, financial performance, Islamic banking financing, macroeconomics, panel data

Judul: Profitability Analysis of Conventional Banks and Islamic Banks in Indonesia Before and During the Covid-19 Pandemic
Abstrak: Covid-19 memiliki dampak yang sangat besar dalam bidang ekonomi termasuk sektor perbankan. Penelitian ini bertujuan untuk menganalisis perkembangan rasio keuangan dan determinan yang memengaruhi profitabilitas bank konvensional dan bank syariah di Indonesia periode triwulan I-2019 hingga triwulan IV-2020. Sampel yang digunakan terdiri dari 10 bank konvensional dan 10 bank syariah. Penelitian ini menggunakan metode data panel dengan ROA sebagai variabel dependen. Adapun variabel independen terdiri dari CAR, NPL/NPF, NIM/NOM, BOPO, LDR/FDR, pertumbuhan ekonomi, dan inflasi. Hasil analisis data menunjukkan bahwa CAR dan NIM berpengaruh positif dan signifikan, serta BOPO berpengaruh negatif dan signifikan terhadap ROA pada bank konvensional. Pada bank syariah, hanya NOM yang menunjukkan pengaruh signifikan terhadap ROA dengan arah positif., Covid-19 has a huge impact in the economic field including the banking sector. This research aims to analyze the development of financial ratios and determinants that affect the profitability of conventional banks and Islamic banks in Indonesia in the first quarter of 2019 to the fourth quarter of 2020. The sample used consisted of 10 conventional banks and 10 Islamic banks. The study used the panel data method with ROA as a dependent variable. The variables independents consist of CAR, NPL/ NPF, NIM / NOM, BOPO, LDR / FDR, economic growth, and inflation. The results of the data analysis showed that CAR and NIM had a positive and significant effect, and BOPO had a negative and significant effect on ROA on conventional banks. In Islamic banks, only NOM shows a significant influence on ROA in a positive direction.
Keyword: financial ratio, macroeconomic indicators, panel data, profitability, ROA

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
Keyword: